Researcher basic information

• Doctor of Philosophy in Health and Sport Sciences, University of Tsukuba

• https://researchmap.jp/hitoshiwakabayashi?lang=en

• https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201201005052174762

• 201201005052174762

• Environmental Ergonomics
• Environmental Physiology
• Brown Adipose Tissue
• 生活環境
• Health Science
• Cold Environment
• Cold Adaptation
• Adaptation to Thermal Environment
• Thermal Physiology
• Physiological Anthropology

• Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention), Architectural environment and building equipment
• Life Science, Applied anthropology
• Life Science, Nutrition science and health science
• Life Science, Sports sciences

• Bachelor's degree program, School of Engineering
• Master's degree program, Graduate School of Engineering
• Doctoral (PhD) degree program, Graduate School of Engineering

Research activity information

• May 2026, 空気調和・衛生工学会北海道支部第60回学術講演会, 優秀発表奨励賞
  人的熱環境要素を考慮した空調制御の構築―第10報 サーモグラフを用いた着衣量推定手法の検討―
  亀田真帆;Biplob Kanti Biswas;岡本開晴;石井洸一;岩村卓嗣;此下慎悟;若林斉
• Dec. 2025, 日本生理人類学会, 2025年度日本生理人類学会フロンティアミーティング（秋期）優秀ポスター賞
  居住地域の気候の違いによる夏季の暑熱順化の違いの検討
  樋口恒介;福田純大;名倉尭哉;新田智也;西村貴孝;若林斉
• May 2025, 空気調和・衛生工学会北海道支部, 空気調和・衛生工学会北海道支部第59回学術講演会優秀発表奨励賞
  冬季暖房空間の加湿が在室者の生理心理応答に及ぼす影響 ―第1報 体水分ロス、皮膚性状、乾燥感および温冷感の評価―
  工藤立気;堀畑美希;常盤昌樹;王佳晴;李相逸;宮脇雅史;白井直樹;若林斉
• Mar. 2025, 日本生理人類学会, 日本生理人類学会優秀研究賞
  若林斉
• Jun. 2024, The 20th International Conference On Environmental Ergonomics, The First Place in the Poster Presentation Award
  Estimation of Thermal Environment Index Based on Clothing Type Identification Using Image Recognition Technology
  Koichi Ishii;Biplob Kanti Biswas;Yu Watanabe;Ayano Dempoya;Jiating Li;Yumiko Tan;Sang-il Lee;Takuji Iwamura;Shingo Konoshita;Hitoshi Wakabayashi
• Mar. 2024, 空気調和・衛生工学会東北支部第13回学術・技術報告会, 優秀発表奨励賞
  VPPリソースとしての貯湯を含む中央式給湯設備の活用(その12)電力需給バランスを考慮した貯湯運転の検討
  宮川卓;赤井仁志;天野雄一朗;藤井良平;李相逸;若林斉
• Mar. 2024, 日本生理人類学会, 論文奨励賞
  寒冷水中環境での最大下運動時における骨格筋の低酸素化と解糖系代謝の亢進
  坂上 輝将;若林 斉;仙石 泰雄;高木 英樹;鍋倉 賢治
• Oct. 2023, 日本水泳・水中運動学会, 最優秀論文発表賞ポスター部門
  寒冷水中環境での最大下運動時における解糖系代謝の亢進と骨格筋の低酸素化
  坂上輝将;若林斉;仙石泰雄;高木英樹;鍋倉賢治
• Sep. 2023, 日本時間生物学会, 優秀演題賞（第30回日本時間生物学会学術大会）
  外界の明暗変化の視覚的情報がヒトの時間認知に与える影響
  丹由美子;李佳テイ;坂彌輔竜;李スミン;若林斉;李相逸
• May 2023, 空気調和・衛生工学会北海道支部, 空気調和・衛生工学会北海道支部優秀発表奨励賞
  寒冷地における家庭用ガスエンジン式熱電併給システムの排熱複合利用による通年活用に関する研究 第 3 報 配管熱ロス改善システムを用いた給湯・暖房実験
  管野まい;濱田靖弘;若林斉;李相逸;新田智也;白井直樹;宮脇雅史;船水孝洋
• Dec. 2022, 人間－生活環境系学会, 第46回人間-生活環境系シンポジウム大会発表賞
  ファン付き作業服を着衣した人体の対流熱伝達率に関する研究（その１）発熱円筒を用いた基礎実験
  山田開;桒原浩平;若林斉
• Sep. 2019, The 14th International Congress of Physiological Anthropology, Best Speaker Award - Consolation Prize
  Yusuke Kobori;Kentaro Matsumoto;Hitoshi Wakabayashi;Mami Matsushita;Toshimitsu Kameya;Takafumi Maeda;Masayuki Saito
• Sep. 2019, The 14th International Congress of Physiological Anthropology, Best Poster Award - 2nd Prize
  Tasuku Ebara;Kentaro Matsumoto;Yusuke Kobori;Hitoshi Wakabayashi;Mami Matsushita;Toshimitsu Kameya;Takafumi Maeda;Masayuki Saito
• Jun. 2019, 日本生理人類学会, 第78回大会優秀発表賞
  松本健太郎;小堀祐資;若林斉;亀谷俊満;松下真美;前田享史;斉藤昌之
• Oct. 2018, 日本生理人類学会, 第77回大会優秀発表賞
  鈴木新一;小林功嗣;佐藤大輔;金田晃一;若林斉
• Jun. 2018, 日本生理人類学会, 日本生理人類学会優秀論文賞
  若林 斉
• May 2017, 空気調和・衛生工学会北海道支部, 平成28年度北海道支部学術講演会優秀発表奨励賞
  骨格筋における寒冷誘発性代謝の新しい評価方法の検討 第1報 近赤外線分光装置を用いた筋酸素動態による評価
  小堀祐資,若林斉
• May 2015, 日本生理人類学会, 日本生理人類学会論文奨励賞
  若林斉, Japan society
• Jun. 2013, 日本生理人類学会, 日本生理人類学会第67回大会優秀発表賞
  Japan society
• Dec. 2012, 人間－生活環境系学会, 人間－生活環境系学会平成24年度奨励賞
  Japan society
• Dec. 2012, 人間－生活環境系学会, 人間－生活環境系学会大会発表賞
  Japan society
• Sep. 2011, 運動と体温の研究会, 第25回運動と体温の研究会 若手発表部門奨励賞
  Japan society
• Sep. 2006, 運動と体温の研究会, 第20回運動と体温の研究会 若手発表部門奨励賞
  Japan society
• Sep. 2004, 日本生理人類学会, 日本生理人類学会第50回大会 発表奨励賞
  Japan society

• Longitudinal Tracking of Objective Measures of Cardiorespiratory Fitness, Body Composition, and Physical Activity in Children
  Tomoko Aoyama; Yuki Hikihara; Masashi Watanabe; Hitoshi Wakabayashi; Satoshi Hanawa; David R. Lubans; Shigeho Tanaka
  Medicine & Science in Sports & Exercise, Ovid Technologies (Wolters Kluwer Health), 25 Nov. 2025, [Peer-reviewed]
  English, Scientific journal, Purpose:
  
  Understanding the longitudinal tracking of cardiorespiratory fitness (CRF), adiposity, and moderate-to-vigorous physical activity (MVPA) during childhood is essential for developing effective health interventions. Our study evaluated the tracking of objectively measured MVPA, CRF, and adiposity from early to late elementary school age.
  
  Methods:
  
  Participants were recruited through six elementary schools in the Kanto region in Japan. Of the 247 children assessed at baseline in first grade (ages 6–7), 244 participated in a follow-up in fifth grade (ages 10–11). CRF was assessed as peak oxygen uptake (VO ₂ peak, mL·kg⁻¹·min⁻¹) during a progressive treadmill test. Body fat percentage was measured using dual-energy X-ray absorptiometry. MVPA was measured using a triaxial accelerometer worn for 14 consecutive days.
  
  Results:
  
  Spearman rank correlations indicated high tracking of body fat percentage in boys (ρ = 0.65, p <0.001) and girls (ρ = 0.61, p <0.001), and moderate and high tracking of MVPA in boys (ρ = 0.58, p <0.001) and girls (ρ = 0.63, p <0.001). CRF showed moderate tracking in boys (ρ = 0.57, p <0.001), but weaker tracking in girls (ρ = 0.29, p <0.01). Generalized estimating equations analysis adjusted for height revealed significant tracking for all three indicators, with a weaker tracking pattern for CRF in girls compared to boys: body fat percentage (β = 0.89 in boys, 0.79 in girls, both p <0.001), MVPA (β = 0.70 in boys, 0.69 in girls, both p <0.001), and CRF (β = 0.76 in boys, 0.54 in girls, both p <0.001).
  
  Conclusions:
  
  These findings support the need for targeted approaches during the early school years to prevent the consolidation of unfavorable profiles in fitness, adiposity, and physical activity. In addition, population-wide approaches throughout the school-age years may be important in supporting fitness development in girls, given the greater variability observed in CRF
• Association of thermal perceptions, metabolic rate, clothing, and local skin temperature in people with cold constitution in air-conditioned office environments
  Biplob Kanti Biswas; Koichi Ishii; Yu Watanabe; Jiating Li; Yumiko Tan; Ayano Dempoya; So Takeuchi; Sang-il Lee; Takuji Iwamura; Shingo Konoshita; Hitoshi Wakabayashi
  Journal of Physiological Anthropology, 44, 27, 1, 18, Springer Science and Business Media LLC, 06 Nov. 2025, [Peer-reviewed], [Last author, Corresponding author]
  English, Scientific journal, Abstract
  
  Cold constitution refers to a phenomenon in which individuals have a higher sensitivity to cold and feel colder than others. This research aimed to examine the associations of morphological characteristics, personal factors, thermal perceptions, and local skin temperature ( t _sk ) with cold constitution by conducting a field experiment. It also explored differences in these aspects between individuals with and without cold constitution, in a thermoneutral office environment during summer and winter, and in 89 and 75 sedentary workers, respectively. A questionnaire survey was conducted to classify the cold constitution (CC) and non-cold constitution (NC) groups. The results indicated that females and individuals with lower body mass index ( BMI ) were more likely to have cold constitution. The CC group exhibited a significantly lower metabolic rate ( M ) in both seasons, lower thermal sensation votes, warmer thermal preference, and a greater predicted percentage of dissatisfied in summer ( p  < 0.01). No significant differences were observed in clothing insulation between the groups; however, winter clothing was significantly higher compared to summer for both groups ( p  < 0.01). Furthermore, the CC group exhibited significantly lower local skin temperatures at distal body parts ( p  < 0.01). Significant correlations were observed for gender, BMI , M , thermal sensations, and distal t _sk with cold constitution. Adjusting the effects of gender and BMI , most correlations with cold constitution weakened. However, thermal sensation remained significant in summer, while no correlation was observed with t _sk . These findings emphasize the significant associations of morphological characteristics, personal factors, and thermal perceptions with cold constitution and show the importance of assessing the thermal environment.
• Infant weight gain and motor development in relation to childhood adiposity and physical activity
  Tomoko Aoyama; Yuki Hikihara; Masashi Watanabe; Hitoshi Wakabayashi; Hidemi Takimoto; Shigeho Tanaka
  JSAMS Plus, 6, 100123, Nov. 2025, [Peer-reviewed]
  English, Scientific journal
• Topical application of menthol enhances brown adipose tissue thermogenesis and fat oxidation in humans
  Hitoshi Wakabayashi; Tomomi Fujimoto; Aiko Miura; Juno Kita; Mami Matsushita; Toshimitsu Kameya; Takafumi Maeda; Masayuki Saito
  American Journal of Physiology-Endocrinology and Metabolism, 329, E302, E311, American Physiological Society, 10 Jul. 2025, [Peer-reviewed], [Lead author, Corresponding author]
  English, Scientific journal, This study examined the relationship between human brown adipose tissue (BAT) activity and thermogenesis in response to topical menthol application, which activates the transient receptor potential melastatin-8 in individuals with various BAT activity. Thirteen healthy male participants were separated into high (n = 6) and low (n = 7) BAT groups based on BAT activity (SUV_max). They were placed in a supine position at 27°C for 120 min with 4% L-menthol or a control solution applied to their abdomen and lower limbs. Expired gas was measured to calculate energy expenditure ( EE) and substrate oxidation. Menthol application increased EE at 60–120 min, with no effect in the controls. Changes in EE adjusted for free fat mass (Δ EE/FFM) were significantly higher following menthol treatment compared with the control application at 60–120 min in the high BAT group ( P < 0.05), but not in the low BAT group. A significant positive correlation was observed between SUV_max and EE/FFM averaged over 60–120 min with menthol treatment ( r = 0.57, P < 0.05), but not in the controls. Fat oxidation averaged over 60–120 min was significantly greater with menthol in the high BAT group ( P < 0.05) compared with the low BAT group. Rectal temperature at 120 min was significantly higher with menthol treatment in the high BAT groups ( P < 0.05); however, menthol showed a minor effect on vasomotor responses, with no effect from BAT activity. Taken together, topical menthol application enhances thermogenesis and fat oxidation, which depends, in part, on BAT activity.
• Investigating real-time thermal sensation predictions using predicted mean vote and local skin temperature analysis via infrared thermography as a nonintrusive tool
  Biplob Kanti Biswas; Koichi Ishii; Kaisei Okamoto; Yu Watanabe; Jiating Li; Yumiko Tan; Ayano Dempoya; Sang-il Lee; Takuji Iwamura; Shingo Konoshita; Hitoshi Wakabayashi
  Energy and Buildings, 338, 115763, Elsevier BV, Apr. 2025, [Peer-reviewed], [Last author, Corresponding author]
  English, Scientific journal
• Recent updates on cold adaptation in population and laboratory studies, including cross-adaptation with non-thermal factors
  Hitoshi Wakabayashi; Hiroyuki Sakaue; Takayuki Nishimura
  Journal of Physiological Anthropology, 44, 7, 1, 29, Feb. 2025, [Peer-reviewed], [Lead author]
  English
• Predicting individual variability in thermal sensation, PMV predictions, and local skin temperature differences using infrared thermography
  Biplob Kanti Biswas; Koichi Ishii; Yu Watanabe; Jiating Li; Yumiko Tan; Ayano Dempoya; Sang-il Lee; Takuji Iwamura; Shingo Konoshita; Hitoshi Wakabayashi
  Building and Environment, 269, 112477, 112477, Elsevier BV, Feb. 2025, [Peer-reviewed], [Last author, Corresponding author]
  Scientific journal
• Associations among motor competence, health-related fitness, and physical activity in children: A comparison of gold standard and field-based measures.
  Masashi Watanabe; Yuki Hikihara; Tomoko Aoyama; Hitoshi Wakabayashi; Satoshi Hanawa; Naomi Omi; Shigeho Tanaka; David R Lubans
  Journal of Sports Sciences, 42, 17, 1644, 1650, 26 Sep. 2024, [Peer-reviewed], [International Magazine]
  English, Scientific journal, This study compared the associations among motor competence, health-related fitness, and physical activity measured by gold standard and field-based methods in children. A total of 248 first-grade children (153 boys) aged 6-7 years participated in the study. Motor competence was assessed using the Test of Gross Motor Development, Second Edition (TGMD -2). Gold standard measures were percent body fat using dual-energy X-ray absorptiometry, peak oxygen uptake per weight using a gas analyser, and moderate-to-vigorous physical activity using accelerometers. Field-based measures were body mass index, maximum speed during progressive running on a treadmill, and a physical activity questionnaire. Multiple regression analysis adjusted for age and sex was used to examine the associations of motor competence with one of the health-related variables and compared differences by measurement method. The results indicated that field-based measures models showed lower associations (R2 = 0.02-0.17) than the gold standard (R2 = 0.21-0.27) and lower standardised regression coefficients for sex and motor competence, except for maximum speed. In conclusion, gold standard measures resulted in stronger associations between motor competence, and health-related fitness and physical activity in children. Examining the contribution of motor competence in children's health using field-based tests can underestimate it.
• 寒冷水中環境における局所的な筋低酸素状態での運動トレーニングによる解糖系代謝能力の向上
  坂上輝将; 仙石泰雄; 高木英樹; 鍋倉賢治; 若林斉
  体力科学, 73, 4, 157, 168, Aug. 2024, [Peer-reviewed], [Last author]
  Japanese, Scientific journal
• Habituation of the cold shock response: a systematic review and meta-analysis
  Barwood MJ; Eglin C; Hills SP; Johnston N; Massey H; McMorris T; Tipton MJ; Wakabayashi H; Webster L
  Journal of Thermal Biology, 119, 103775, 2024, [Peer-reviewed]
  English, Scientific journal
• 寒冷水中環境での最大下運動時における骨格筋の低酸素化と解糖系代謝の亢進
  坂上輝将; 若林斉; 仙石泰雄; 高木英樹; 鍋倉賢治
  日本生理人類学会誌, 28, 3, 57, 69, Aug. 2023, [Peer-reviewed]
  Scientific journal
• Influence of acute beetroot juice supplementation on cold-induced vasodilation and fingertip rewarming
  Hitoshi Wakabayashi; Koji Sugiyama; Shinichi Suzuki; Yasuko Sakihama; Makoto Hashimoto; Martin J. Barwood
  European Journal of Applied Physiology, 123, 3, 495, 507, Springer Science and Business Media LLC, Mar. 2023, [Peer-reviewed]
  Scientific journal
• 個室型ワークスペースにおける執務環境の改善に関する研究―第1報―パーソナル吹出口が執務者の覚醒度や作業パフォーマンスに与える影響
  北樹乃; 帳江; 梅原啓輔; 永坂茂之; 三浦愛子; 李相逸; 若林斉
  空気調和・衛生工学会論文集, 48, 312, 11, 18, 2023, [Peer-reviewed], [Last author, Corresponding author]
  Japanese, Scientific journal
• Infant gross motor development and childhood physical activity: Role of adiposity
  Tomoko Aoyama; Yuki Hikihara; Masashi Watanabe; Hitoshi Wakabayashi; Satoshi Hanawa; Naomi Omi; Hidemi Takimoto; Shigeho Tanaka
  Journal of Science and Medicine in Sport Plus, 2, 100021, 100021, Elsevier BV, Jan. 2023, [Peer-reviewed]
  Scientific journal
• Does earlier acquisition of motor competence promote pubertal physical activity in Japanese elementary school children: A 4-year follow-up study
  Yuki Hikihara; Masashi Watanabe; Tomoko Aoyama; Hitoshi Wakabayashi; Satoshi Hanawa; Naomi Omi; Shigeho Tanaka
  Journal of sports sciences, 40, 18, 2000, 2009, Sep. 2022, [Peer-reviewed], [International Magazine]
  English, Scientific journal, This 4-year follow-up study investigated which profile of motor competence (MC) in early childhood more strongly correlated with moderate-to-vigorous physical activity (MVPA) in early pubescence. A total of 247 first-grade children (152 boys) aged 6 to 7 years old participated in the baseline measurement. MVPA was measured using an accelerometer annually until the fifth grade. Body fat percentage was assessed using dual-energy X-ray absorptiometry at baseline. MC included fundamental movement skills (FMS) and motor performance, which were assessed in terms of locomotor and object control. FMS was assessed by the Test of Gross Motor Development-2, while motor performance (locomotor: run, hop, jump, and side-step, object control: throw, kick, and hand dribble) was assessed by Japanese Physical Fitness and Motor Abilities Test at baseline. Multiple regression analysis showed that locomotor and object control performance were significant predictors of MVPA in later grades in boys but not in girls. These associations between locomotor performance and MVPA mainly remained significant after controlling for body fat and MVPA at baseline. FMS in both genders was not a significant predictor of MVPA in early pubescence. This study suggests that appropriate strategies for increasing MVPA from prepubescence to early pubescence may differ between boys and girls.
• How humans adapt to hot climates learned from the recent research on tropical indigenes.
  Yutaka Tochihara; Hitoshi Wakabayashi; Joo-Young Lee; Titis Wijayanto; Nobuko Hashiguchi; Mohamed Saat
  Journal of physiological anthropology, 41, 27, 27, 27, Jul. 2022, [Peer-reviewed], [Invited], [Corresponding author], [International Magazine]
  English, Scientific journal, This review mainly aimed to introduce the findings of research projects comparing the responses of tropical and temperate indigenes to heat. From a questionnaire survey on thermal sensation and comfort of Indonesians and Japanese, we found that the thermal descriptor "cool" in tropical indigenes connotes a thermally comfortable feeling, suggesting that linguistic heat acclimatization exists on a cognitive level. Ten male students born and raised in Malaysia were invited to Fukuoka, Japan, and compared their responses with 10 Japanese male students with matched physical fitness and morphological characteristics. Cutaneous thermal sensitivity: The sensitivities were measured at 28 °C. The forehead warm sensitivity was significantly blunted in Malaysians. The less sensitivity to the warmth of tropical indigenes is advantageous in respect to withstanding heat stress with less discomfort and a greater ability to work in hot climates. Passive heat stress: Thermoregulatory responses, especially sweating, were investigated, during the lower leg hot bathing (42 °C for 60 min). The rectal temperature at rest was higher in Malaysians and increased smaller during immersion. There was no significant difference in the total amount of sweating between the two groups, while the local sweating on the forehead and thighs was lesser in Malaysians, suggesting distribution of sweating was different from Japanese. Exercise: Malaysian showed a significantly smaller increase in their rectal temperature during 55% maximal exercise for 60 min in heat (32 °C 70% relative humidity), even with a similar sweating and skin blood flow response in Japanese. The better heat tolerance in Malaysians could be explained by the greater convective heat transfer from the body core to the skin due to the greater core-to-skin temperature gradient. In addition, when they were hydrated, Malaysian participants showed better body fluid regulation with smaller reduction in plasma volume at the end of the exercise compared to the non-hydrated condition, whereas Japanese showed no difference between hydration conditions. We further investigated the de-acclimatization of heat adaptation by longitudinal observation on the heat tolerance of international students who had moved from tropical areas to Fukuoka for several years.
• Human brown adipose tissue as a regulator of systemic metabolism
  Masayuki SAITO; Hitoshi WAKABAYASHI
  日本生理人類学会誌, 27, 2, 27, 37, May 2022, [Peer-reviewed], [Invited]
  Scientific journal
• Effect of personal protective equipment on the physiological responses of different body weight groups of firefighters.
  Ilham Bakri; Yutaka Tochihara; Joo-Young Lee; Hitoshi Wakabayashi
  Journal of the Human-Environment System, 24, 1, 11, 16, Mar. 2022, [Peer-reviewed]
  English
• Association between age of achieving gross motor development milestones during infancy and body fat percentage at 6 to 7 years of age
  Tomoko Aoyama; Yuki Hikihara; Masashi Watanabe; Hitoshi Wakabayashi; Satoshi Hanawa; Naomi Omi; Hidemi Takimoto; Shigeho Tanaka
  Maternal and Child Health Journal, 26, 415, 423, Springer Science and Business Media LLC, Oct. 2021, [Peer-reviewed]
  English, Scientific journal,
  
  The later achievement of gross motor milestones during infancy is associated with adiposity in early childhood. However, the associations between gross motor development and adiposity after entering primary school are unclear. This study examined the associations between the ages at which six gross motor milestones were achieved and adiposity during early school years.
  
  
  
  
  This retrospective study was conducted in 2012 and 2013. Data were collected from 225 first-grade primary school children (mean age, 6.9 years; 39% girls). Adiposity was assessed using dual-energy X-ray absorptiometry and expressed as body fat percentage. Data describing the ages of achieving six gross motor milestones (holding head up, sitting, crawling, standing supported, walking supported, and independent walking) were obtained from the Maternal and Child Health Handbooks.
  
  
  
  
  Mean body fat percentage was 21.7%. Multiple linear regression analyses revealed that later ages of achieving crawling (p < .001 [95% confidence interval: 0.33–1.16]), standing supported (p < .001 [95% confidence interval: 0.64–1.65]), and walking supported [p = .013 (95% confidence interval: 0.13–1.07)] were associated with increased fat. However, the ages of achieving holding head up (p = .053), sitting (p = .175), and independent walking (p = .736) were not statistically significant.
  
  
  
  
  Achieving crawling, standing supported, and walking supported later predict increased body fat when aged 6–7 years. The practice of observing gross motor milestone achievements may allow early targeted interventions to optimize body composition before beginning school and thereby, potentially prevent childhood obesity.
  
  
  
• Upregulation of cathepsin L gene under mild cold conditions in young Japanese male adults
  Yoshiki Yasukochi; Sora Shin; Hitoshi Wakabayashi; Takafumi Maeda
  Journal of Physiological Anthropology, 40, 1, 16, 16, Oct. 2021, [Peer-reviewed], [International Magazine]
  English, Scientific journal, BACKGROUND: Physiological thermoregulatory systems in humans have been a key factor for adaptation to local environments after their exodus from Africa, particularly, to cold environments outside Africa. Recent studies using high-throughput sequencing have identified various genes responsible for cold adaptation. However, the molecular mechanisms underlying initial thermoregulation in response to acute cold exposure remain unclear. Therefore, we investigated transcriptional profiles of six young Japanese male adults exposed to acute cold stress. METHODS: In a climatic chamber, the air temperature was maintained at 28°C for 65 min and was then gradually decreased to 19°C for 70 min. Saliva samples were obtained from the subjects at 28°C before and after 19°C cold exposure and were used for RNA sequencing. RESULTS: In the cold exposure experiment, expression levels of 14 genes were significantly changed [false discovery rate (FDR) < 0.05] although the degree of transcriptional changes was not high due to experimental conditions or blunted transcriptional reaction in saliva to cold stress. As a result, differential gene expression analyses detected the cathepsin L (CTSL) gene to be significantly upregulated, with FDR < 0.05 and log2 fold change value > 1; thus, this gene was identified as a differentially expressed gene. Given that the cathepsin L protein is related to invasion of the novel coronavirus (SARS-CoV-2), mild cold stress might alter the susceptibility to coronavirus disease-19 in humans. The gene ontology enrichment analysis for 14 genes with FDR < 0.05 suggested that immune-related molecules could be activated by mild cold stress. CONCLUSIONS: The results obtained from this study indicate that CTSL expression levels can be altered by acute mild cold stress.
• Diurnal variations of brown fat thermogenesis and fat oxidation in humans
  Mami Matsushita; Shinsuke Nirengi; Masanobu Hibi; Hitoshi Wakabayashi; Sang-il Lee; Masayuki Domichi; Naoki Sakane; Masayuki Saito
  International Journal of Obesity, 45, 2499, 2505, Aug. 2021, [Peer-reviewed]
  English, Scientific journal
• Thermoregulatory and cardiovascular responses in the elderly towards a broad range of gradual air temperature changes
  Yutaka Tochihara; Kazuaki Yamashita; Kenji Fujii; Yumi Kaji; Hitoshi Wakabayashi; Hiroyuki Kitahara
  Journal of Thermal Biology, 99, May 2021, [Peer-reviewed], [Corresponding author]
• Multiorgan contribution to non-shivering and shivering thermogenesis and vascular responses during gradual cold exposure in humans
  Hitoshi Wakabayashi; Kentaro Matsumoto; Yusuke Kobori; Tasuku Ebara; Mami Matsushita; Toshimitsu Kameya; Takafumi Maeda; Masayuki Saito
  European Journal of Applied Physiology（Online first）, 120, 2737, 2747, Sep. 2020, [Peer-reviewed], [Lead author]
  English, Scientific journal
• Effects of acute hypobaric hypoxia on thermoregulatory and circulatory responses during cold air exposure.
  Shin S; Yasukochi Y; Wakabayashi H; Maeda T
  Journal of Physiological Anthropology, 39, 28, 1, 6, Sep. 2020, [Peer-reviewed]
  English
• Transcriptomic changes in young Japanese males after exposure to acute hypobaric hypoxia.
  Yasukochi Y; Shin S; Wakabayashi H; Maeda T
  Frontiers in Genetics, 11, 559074, 1, 10, Sep. 2020, [Peer-reviewed]
  English
• Skin blood flow measurement using laser doppler flowmetry applied for sports science
  Hitoshi Wakabayashi
  日本赤外線学会誌, 30, 1, 17, 20, Aug. 2020, [Invited]
  Japanese, Scientific journal
• （総説）骨格筋冷却状態における運動パフォーマンス低下の生理的要因とトレーニングへの応用．
  若林斉; 坂上輝将; 仙石泰雄; 高木英樹
  日本運動生理学雑誌, 27, 1, 9, 13, Mar. 2020, [Invited]
  Japanese, Scientific journal
• Pilot study: the effects of muscle cooling on metabolic responses and performance during a Wingate anaerobic power test
  Arthur Chan; Hiroyuki Sakaue; Miina Muranaka; Mariko Sakai; Hitoshi Wakabayashi; Yasuo Sengoku
  Sport and Olympic-Paralympic Studies Journal (SOPSJ), 4, 1, 9, 17, Oct. 2019, [Peer-reviewed]
  English, Scientific journal
• An optimal condition for the evaluation of human brown adipose tissue by infrared thermography
  Shinsuke Nirengi; Hitoshi Wakabayashi; Mami Matsushita; Masayuki Domichi; Shinichi Suzuki; Shin Sukino; Akiko Suganuma; Yaeko Kawaguchi; Takeshi Hashimoto; Masayuki Saito; Naoki Sakane
  PLOS ONE, 14, 8, e0220574, Aug. 2019, [Peer-reviewed]
  English, Scientific journal
• 温熱と適応－生活習慣の変容による人類の温熱環境適応能の潜在化と顕在化－
  若林斉; 前田享史; 西村貴孝
  日本生理人類学会誌, 23, 4, 167, 170, Nov. 2018, [Peer-reviewed], [Invited]
  Japanese, Scientific journal
• Effects of muscle cooling on kinetics of pulmonary oxygen uptake and muscle deoxygenation at the onset of exercise
  Wakabayashi H; Osawa M; Koga S; Li K; Sakaue H; Sengoku Y; Takagi H
  Physiological Reports, 6, 21, e13910, Oct. 2018, [Peer-reviewed]
  English, Scientific journal
• Human physiological and subjective response to multiple environments of temperature and fragrance Part 1―Effect of peppermint fragrance on memory task and regional cerebral blood oxygenation
  WAKABAYASHI Hitoshi
  Transactions of the Society of Heating,Air-conditioning and Sanitary Engineers of Japan, 43, 253, 23, 30, The Society of Heating, Air-Conditioning & Sanitary Engineers of Japan, Apr. 2018, [Peer-reviewed]
  Japanese, Scientific journal, This study investigated the effect of a peppermint fragrance on the performance of a memory task as well as on the physiological and subjective sensation during the task. Ten healthy male participants were exposed to indoor conditions with or without the peppermint fragrance. They performed memory task for 7-to-9-digit numbers in a climatic chamber controlled at 28°C and 50% relative humidity. During the experiment, the cerebral oxygenation level was evaluated using the near-infrared spectroscopy on the forehead. The heart rate, inner ear temperature, skin temperature, forehead skin blood flow, and forearm local sweat rate were continuously measured. Thermal sensation and comfort, subjective sweat sensation, and perceived temperature were assessed eight times. The results showed that there was no significant difference in the task performance between fragrance conditions. In the peppermint condition, the cerebral oxygenated hemoglobin level and heat rate were slightly decreased during the task. This result suggests that the peppermint fragrance might decrease the physiological strain during the cognitive task, even with a similar performance level in the memory task. Thermoregulatory response and subjective sensations showed small changes during the experiment, but no significant difference was observed between the two conditions.
• Effect of repeated forearm muscle cooling on the adaptation of skeletal muscle metabolism in humans
  Hitoshi Wakabayashi; Takayuki Nishimura; Titis Wijayanto; Shigeki Watanuki; Yutaka Tochihara
  INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 61, 7, 1261, 1267, Jul. 2017, [Peer-reviewed]
  English, Scientific journal
• Neuromuscular function during knee extension exercise after cold water immersion
  Hitoshi Wakabayashi; Titis Wijayanto; Yutaka Tochihara
  JOURNAL OF PHYSIOLOGICAL ANTHROPOLOGY, 36, Jun. 2017, [Peer-reviewed]
  English, Scientific journal
• Maximal workload but not peak oxygen uptake is decreased during immersed incremental exercise at cooler temperatures
  Tomomi Fujimoto; Yosuke Sasaki; Hitoshi Wakabayashi; Yasuo Sengoku; Shozo Tsubakimoto; Takeshi Nishiyasu
  EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 116, 9, 1819, 1827, Sep. 2016, [Peer-reviewed]
  English, Scientific journal
• 学士課程教育における大学体育：その可能性と再定義
  森田啓; 引原有輝; 若林斉; 金田晃一; 西林賢武
  体育学研究, 61, 1, 217, 227, Jun. 2016, [Peer-reviewed]
  Japanese, Scientific journal
• Effect of different types of physical education classes on cultivating fundamental competencies for working persons in college students
  引原有輝; 森田啓; 若林斉; 金田晃一
  大学体育学, 13, 13, 16, 25, 全国大学体育連合, Mar. 2016, [Peer-reviewed]
  Japanese, Scientific journal
• (Review Article) Exercise performance in acute and chronic cold exposure
  Wakabayashi H; Oksa J; Tipton MJ
  The Journal of Physical Fitness and Sports Medicine, 4, 2, 177, 185, The Japanese Society of Physical Fitness and Sports Medicine, May 2015, [Invited]
  English, Scientific journal, This review focuses on the suppression of physical performance in a cold environment and the underlying physiological mechanisms. There are many situations where humans have to perform physical activities in a cold environment. Cold environments often limit exercise and working performance by impairing functions such as force production, velocity, power and manual dexterity. A muscle temperature of around 27°C is assumed to be a critical temperature below which maximal voluntary isometric force starts to decrease. The endurance time of submaximal isometric contractions peak at muscle temperatures of 27 to 28°C and decrease rapidly above and below these temperatures. Dynamic exercise performance, especially fast velocity movement, is generally more disturbed by cooling than isometric contractions. Additionally, the effect of cold adaptation on exercise performance, and the potential related mechanisms are summarized here based on a limited number of studies. Since the involuntary muscle contraction of shivering disturbs fine motor control, habituation of shivering, which is an example of cold adaptation, potentially improves exercise performance. Higher hand skin temperatures, induced by greater cold induced vasodilatation after local cold adaptation, could improve manual dexterity. Since there have been few studies testing the effect of cold adaptation on exercise performance in a cold environment, further studies seem warranted.
• The European, Japanese and US protective helmet, gloves and boots for firefighters: thermoregulatory and psychological evaluations
  Joo-Young Lee; Yota Yamamoto; Riichi Oe; Su-Young Son; Hitoshi Wakabayashi; Yutaka Tochihara
  ERGONOMICS, 57, 8, 1213, 1221, Aug. 2014, [Peer-reviewed]
  English, Scientific journal
• A comparison of hydration effect on body fluid and temperature regulation between Malaysian and Japanese males exercising at mild dehydration in humid heat
  Hitoshi Wakabayashi; Titis Wijayanto; Joo-Young Lee; Nobuko Hashiguchi; Mohamed Saat; Yutaka Tochihara
  JOURNAL OF PHYSIOLOGICAL ANTHROPOLOGY, 33, Feb. 2014, [Peer-reviewed]
  English, Scientific journal
• Adaptation in Oxygen Consumption of Hypothermic Skeletal Muscle During Handgrip Exercise after Repeated Forearm Tissue Cooling
  若林 斉
  デサントスポーツ科学, 34, 125-131, 131, 石本記念デサントスポーツ科学振興財団事務局, Jun. 2013, [Peer-reviewed]
  Japanese
• Habituation of the metabolic and ventilatory responses to cold-water immersion in humans
  Michael J. Tipton; Hitoshi Wakabayashi; Martin J. Barwood; Clare M. Eglin; Igor B. Mekjavic; Nigel A.S. Taylor
  Journal of Thermal Biology, 38, 1, 24, 31, Jan. 2013, [Peer-reviewed]
  English, Scientific journal
• The use of language to express thermal sensation suggests heat acclimatization by Indonesian people
  Yutaka Tochihara; Joo-Young Lee; Hitoshi Wakabayashi; Titis Wijayanto; Ilham Bakri; Ken Parsons
  INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 56, 6, 1055, 1064, Nov. 2012, [Peer-reviewed]
  English, Scientific journal
• Effects of duration of stay in temperate area on thermoregulatory responses to passive heat exposure in tropical south-east Asian males residing in Japan
  Titis Wijayanto; Sayo Toramoto; Hitoshi Wakabayashi; Yutaka Tochihara
  JOURNAL OF PHYSIOLOGICAL ANTHROPOLOGY, 31, Sep. 2012, [Peer-reviewed]
  English, Scientific journal
• The effect of repeated mild cold water immersions on the adaptation of the vasomotor responses
  Hitoshi Wakabayashi; Titis Wijayanto; Hideto Kuroki; Joo-Young Lee; Yutaka Tochihara
  INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 56, 4, 631, 637, Jul. 2012, [Peer-reviewed]
  English, Scientific journal
• The Rectal Temperature Estimation Method Based on Tympanic Temperature for Workers Wearing Protective Clothing in Nuclear Facilities
  TAKAHASHI Naoki; LEE Joo-Young; WAKABAYASHI Hitoshi; TOCHIHARA Yutaka
  Jpn. J. Health Phys., 47, 1, 54-65, 65, Japan Health Physics Society, Mar. 2012, [Peer-reviewed]
  Japanese, Scientific journal, At nuclear facilities, workers wear impermeable protective clothing to prevent radioactive contamination during inspection and maintenance activities. The heat stroke risk of the workers wearing protective clothing gradually increases, because of retaining heat and humidity inside of protective clothing. Normally, the rectal temperature is used to manage the heat stroke risk. But the rectal temperature measurement is very difficult at the working place. We have already reported that the measurement of infrared tympanic temperature is more realistic than that of rectal temperature to manage the heat stroke risk. But tympanic temperature indicates high temperature compared to rectal temperature. So, the use of the tympanic temperature overestimates core temperature and decreases the work efficiency. Therefore, we attempted to make formulas to predict rectal temperature from measured tympanic temperature, and to use calculated rectal temperature for safer and more efficient management. The rectal temperature predicted with the formulas agreed with the actual measurement within the range of measurement error (±0.1°C). Combination of tympanic temperature measurement and heart rate evaluation enabled the safer management of the heat stroke risk with wearing protective clothing.
• Authors' response to A. Flouris's correspondence 'The advantage of using differential data in thermal biology'
  Hitoshi Wakabayashi; Joo-Young Lee; Titis Wijayanto; Nobuko Hashiguchi; Mohamed Saat; Yutaka Tochihara
  INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 56, 2, 405, 406, Mar. 2012, [Peer-reviewed]
  English, Scientific journal
• Effects of firefighters' self-contained breathing apparatus' weight and its harness design on the physiological and subjective responses
  Ilham Bakri; Joo-Young Lee; Kouhei Nakao; Hitoshi Wakabayashi; Yutaka Tochihara
  ERGONOMICS, 55, 7, 782, 791, 2012, [Peer-reviewed]
  English, Scientific journal
• Ethnic differences in thermoregulatory responses during resting, passive and active heating: application of Werner's adaptation model
  Joo-Young Lee; Hitoshi Wakabayashi; Titis Wijayanto; Nobuko Hashiguchi; Mohamed Saat; Yutaka Tochihara
  EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 111, 12, 2895, 2905, Dec. 2011, [Peer-reviewed]
  English, Scientific journal
• Comparison of thermoregulatory responses to heat between Malaysian and Japanese males during leg immersion
  Titis Wijayanto; Hitoshi Wakabayashi; Joo-Young Lee; Nobuko Hashiguchi; Mohamed Saat; Yutaka Tochihara
  INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 55, 4, 491, 500, Jul. 2011, [Peer-reviewed]
  English, Scientific journal
• Comparison of heat dissipation response between Malaysian and Japanese males during exercise in humid heat stress
  Hitoshi Wakabayashi; Titis Wijayanto; Joo-Young Lee; Nobuko Hashiguchi; Mohamed Saat; Yutaka Tochihara
  INTERNATIONAL JOURNAL OF BIOMETEOROLOGY, 55, 4, 509, 517, Jul. 2011, [Peer-reviewed]
  English, Scientific journal
• Development and Operational Results of a Real-time Remote Biological Information Monitoring Device for the Workers Wearing Protective Clothes at a Nuclear Facility
  TAKAHASHI Naoki; LEE Joo-Young; WAKABAYASHI Hitoshi; TOCHIHARA Yutaka
  Jpn. J. Health Phys., 46, 2, 140-147, 108, Japan Health Physics Society, Jun. 2011, [Peer-reviewed]
  Japanese, Scientific journal
• Comparison of once and twice weekly water exercise on various bodily functions in community-dwelling frail elderly requiring nursing care
  Daisuke Sato; Koichi Kaneda; Hitoshi Wakabayashi; Yoshimitsu Shimoyama; Yasuhiro Baba; Takeo Nomura
  ARCHIVES OF GERONTOLOGY AND GERIATRICS, 52, 3, 331, 335, May 2011, [Peer-reviewed]
  English, Scientific journal
• Evaluation of childrens' thermal sensation in an outdoor swimming pool during swimming class -Multiple effects of environment, morphological characteristics and swimwear condition-
  Wakabayashi H; Arai S; Sengoku Y; Kaneda K; Sato D; Nomura T; Tochihara Y
  Journal of Human-Environment System, 14, 1, 1-7, Apr. 2011, [Peer-reviewed]
  English, Scientific journal
• 水中運動時の下肢酸素動態，特集：水中運動療法の考え方・進め方－安全で有効な実践のために－
  臨床スポーツ医学, 27, 8, 823-827, Aug. 2010
  Japanese
• Differences in rectal temperatures measured at depths of 4-19 cm from the anal sphincter during exercise and rest
  Joo-Young Lee; Hitoshi Wakabayashi; Titis Wijayanto; Yutaka Tochihara
  EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 109, 1, 73, 80, May 2010, [Peer-reviewed]
  English, Scientific journal
• Issues in combining the categorical and visual analog scale for the assessment of perceived thermal sensation: Methodological and conceptual considerations
  Joo-Young Lee; Eric A. Stone; Hitoshi Wakabayashi; Yutaka Tochihara
  APPLIED ERGONOMICS, 41, 2, 282, 290, Mar. 2010, [Peer-reviewed]
  English, Scientific journal
• Cutaneous Warm and Cool Sensation Thresholds and the Inter-threshold Zone in Malaysian and Japanese Males
  Joo-Young Lee; Mohamed Saat; Chinmei Chou; Nobuko Hashiguchi; Titis Wijayanto; Hitoshi Wakabayashi; Yutaka Tochihara
  JOURNAL OF THERMAL BIOLOGY, 35, 2, 70, 76, Feb. 2010, [Peer-reviewed]
  English, Scientific journal
• EMG activity of hip and trunk muscles during deep-water running
  Koichi Kaneda; Daisuke Sato; Hitoshi Wakabayashi; Takeo Nomura
  JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 19, 6, 1064, 1070, Dec. 2009, [Peer-reviewed]
  English, Scientific journal
• Comparison of 2-year effects of once and twice weekly water exercise on activities of daily living ability of community dwelling frail elderly
  Daisuke Sato; Koichi Kaneda; Hitoshi Wakabayashi; Takeo Nomura
  ARCHIVES OF GERONTOLOGY AND GERIATRICS, 49, 1, 123, 128, Jul. 2009, [Peer-reviewed]
  English, Scientific journal
• Warm or slightly hot? Differences in linguistic dimensions describing perceived thermal sensation
  Joo-Young Lee; Yutaka Tochihara; Hitoshi Wakabayashi; Eric A. Stone
  Journal of Physiological Anthropology, 28, 1, 37, 41, 2009, [Peer-reviewed]
  English, Scientific journal
• Comparison two-year effects of once-weekly and twice-weekly water exercise on health-related quality of life of community-dwelling frail elderly people at a day-service facility
  Daisuke Sato; Koichi Kaneda; Hitoshi Wakabayashi; Takeo Nomura
  DISABILITY AND REHABILITATION, 31, 2, 84, 93, 2009, [Peer-reviewed]
  English, Scientific journal
• Lower extremity muscle activity during deep-water running on self-determined pace
  Koichi Kaneda; Hitoshi Wakabayashi; Daisuke Sato; Tamotsu Uekusa; Takeo Nomura
  JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 18, 6, 965, 972, Dec. 2008, [Peer-reviewed]
  English, Scientific journal
• A Comparison of the Effects of Different Water Exercise Programs on Balance Ability in Elderly People
  Koichi Kaneda; Daisuke Sato; Hitoshi Wakabayashi; Atsuko Hanai; Takeo Nomura
  JOURNAL OF AGING AND PHYSICAL ACTIVITY, 16, 4, 381, 392, Oct. 2008, [Peer-reviewed]
  English, Scientific journal
• Effect of non-uniform skin temperature on thermoregulatory response during water immersion
  Hitoshi Wakabayashi; Koichi Kaneda; Daisuke Sato; Yutaka Tochihara; Takeo Nomura
  EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 104, 2, 175, 181, Sep. 2008, [Peer-reviewed]
  English, Scientific journal
• 小学校水泳授業における保温水着着用の基準設定―環境条件および身体特性を考慮して―
  若林斉; 新井清司; 仙石泰雄; 金田晃一; 野村武男
  デサントスポーツ科学, 29, 64, 70, Jun. 2008, [Peer-reviewed]
  Japanese
• The water exercise improves health-related quality of life of frail elderly people at day service facility
  Daisuke Sato; Koichi Kaneda; Hitoshi Wakabayashi; Takeo Nomura
  QUALITY OF LIFE RESEARCH, 16, 10, 1577, 1585, Dec. 2007, [Peer-reviewed]
  English, Scientific journal
• The effectiveness of wearing thermal swimsuits during elementary school swimming class: focusing mainly on students' cold sensation and formative evaluation of the class
  Wakabayashi Hitoshi; Arai Seiji; Sengoku Yasuo; Kaneda Koichi; Nomura Takeo
  Research of physical education, 52, 2, 201-211, 211, Japanese Society of Physical Education, Health and Sport Sciences, Mar. 2007, [Peer-reviewed]
  Japanese, Scientific journal, This study investigated the effect of a thermal swimsuit(TSS) on children's thermal sensation and formative evaluation during elementary school swimming classes. In addition, application of the TSS in different environmental conditions in an outdoor swimming pool and children's physical characteristics were studied. The study participants were 62 sixth-grade elementary children, who were divided into two groups(experimental: n=32, control: n=30). The investigation consisted of a pre-test, and a post-test after three days of TSS intervention. A questionnaire survey concerning children's thermal sensation and formative evaluation of the class was conducted after each class. It was found that on days when the weather was cold, the experimental group significantly attenuated the cold sensation and showed higher motivation and interest in the class. Additionally, the TSS was able to decrease the number of students who could not continue swimming in the water because of coldness. These results indicated that swimming classes could be held even in a cold environment when the TSS was used. Furthermore, it was suggested that application of the TSS as a teaching aid would compensate for the thinner physique of children.
• Effects of wearing thermal swimsuit during exercise in cool water and availability for prepubescent students during swimming class
  椿本昇三; 若林斉; 仙石泰雄; 野村武男
  Bulletin of Institute of Health and Sports Sciences, University of Tsukuba, 30, 157, 160, 筑波大学体育科学系, Mar. 2007
  Japanese, Research institution
• 異なる頻度の水中運動が要介護認定者の起居・移乗移動動作に及ぼす影響
  佐藤大輔; 金田晃一; 若林斉; 野村武男
  体力科学, 56, 1, 141-148, Feb. 2007, [Peer-reviewed]
  Japanese, Scientific journal
• Lower extremity muscle activity during different types and speeds of underwater movement
  Koichi Kaneda; Hitoshi Wakabayashi; Daisuke Sato; Takeo Nomura
  Journal of Physiological Anthropology, 26, 2, 197, 200, 2007, [Peer-reviewed]
  English, Scientific journal
• Insulation and body temperature of prepubescent children wearing a thermal swimsuit during moderate-intensity water exercise
  Hitoshi Wakabayashi; Koichi Kaneda; Masashi Okura; Takeo Nomura
  Journal of Physiological Anthropology, 26, 2, 179, 183, 2007, [Peer-reviewed]
  English, Scientific journal
• Thermal insulation and body temperature wearing a thermal swimsuit during water immersion
  Hitoshi Wakabayashi; Atsuko Hanai; Shintaro Yokoyama; Takeo Nomura
  Journal of Physiological Anthropology, 25, 5, 331, 338, 2006, [Peer-reviewed]
  English, Scientific journal

• 褐色脂肪組織と骨格筋の機能協調による体温調節
  若林斉, Bio Industry, 41, 8, 17, 25, Aug. 2024, [Invited], [Lead author]
• 体温調節機能や温熱的快適性の個人差を考慮した環境制御 ―パーソナル空調から非温熱刺激の活用まで―
  若林斉; 北樹乃; 志村虎太郎; 永坂茂之; 張江; 梅原啓輔, 新日本空調技術開発研究所技報, 28, 2022, 83, 88, Mar. 2023, [Invited]
• 床吹出システムを用いたタスク＆アンビエント空調に関する研究（その２）覚醒度維持と作業効率向上の効果検証および暖房実験
  張江; 梅原啓輔; 永坂茂之; 北樹乃; 若林斉; 山田哲靖, 技術開発研究所 技報No.27 2021, 5, 10, Mar. 2022
  Japanese
• 床吹出システムを用いたタスク＆アンビエント空調に関する研究（その１）自立型パーソナル吹出口の開発
  帳江; 梅原啓輔; 永坂茂之; 北樹乃; 若林斉, 技術開発研究所 技報No.26 2020, 4, 8, Mar. 2021
• ペパーミント芳香浴およびメンソール塗布による清涼感と体温調節応答への影響
  若林 斉, MEDICAL HERB, 52, 42, 44, Jun. 2020, [Invited]
  Japanese
• ペパーミント芳香浴による記憶課題パフォーマンスへの影響と生体負担軽減．
  若林斉; 小峯裕己, アロマトピア154, 28, 3, 26, 29, Jun. 2019, [Invited]
  Japanese, Others
• ペパーミント芳香浴およびメントール塗布が暑熱環境での体温調節応答に及ぼす影響
  若林斉; 小峯裕己, アロマトピア154, 28, 3, 30, 33, Jun. 2019, [Invited]
  Japanese, Others

• 〔Major achievements〕The Thermal Environment: From Viewpoints of Physiological Anthropology and Environmental Ergonomics, Yutaka Tochihara (ed)
  Hitoshi Wakabayashi, Chapter 5 Physiological Responses and Performance in Cold Environments, pp 101–137
  Springer Nature, May 2025, 9789819630080, [Contributor]
• 〔主要な業績〕褐色脂肪組織 Brown Adipose Tissue: Science and Applications
  若林斉, 第1章 褐色脂肪組織の熱産生と健康，褐色脂肪組織と骨格筋の機能協調による体温調節，p.20-30
  シーエムシー出版, May 2024, [Contributor]
• 〔主要な業績〕人間の許容・適応限界事典
  Ⅶ-23「雪」p.515-518、Ⅶ-24「低温」p.519-522
  朝倉書店, Nov. 2022, 9784254102963, [Contributor]
• 新編生理人類士入門
  若林斉; 西村貴孝, 低圧環境, p171-174
  国際文献社, Feb. 2022, [Contributor]
• 生理人類学ー人の理解と日常の課題発見のためにー
  第3章：人の日常行動と課題、第6節：運動 p.159-171
  理工図書, Nov. 2020, [Contributor]
• 〔主要な業績〕人間科学の百科事典，日本生理人類学会編
  筋p.65-66，温度p.282-284，体温p.536-537，皮膚温p.538-540
  丸善出版, Jan. 2015, Japanese, Scholarly book, [Contributor]

• 〔主要な業績〕Recent Updates in Human Cold Adaptation
  Hitoshi Wakabayashi
  The 21st International Conference on Environmental Ergonomics, English, Invited oral presentation
  17 Aug. 2026 - 21 Aug. 2026, [Invited]
• 〔主要な業績〕寒冷環境における循環応答と体温調節に見られる個人差
  若林斉
  空気調和・衛生工学会北海道支部2025年度地区講演会「暑さ・寒さと健康：住宅や職場等の多様な環境要因と人の生理・健康への影響」, 19 Feb. 2026, Japanese, Invited oral presentation
  [Invited]
• 〔主要な業績〕Updates in human cold adaptation
  Hitoshi Wakabayashi
  The 3rd International Symposium on Physiological Anthropology and Environmental Ergonomics in the Thermal Environment, 12 Jul. 2025
  [Invited]
• 〔主要な業績〕Training in cold with moderate workload improves anaerobic power
  Hitoshi Wakabayashi; Hiroyuki Sakaue; Yasuo Sengoku; Hideki Takagi; Yoshiharu Nabekura
  The 20th International Conference on Environmental Ergonomics, 07 Jun. 2024, English, Invited oral presentation
  03 Jun. 2024 - 07 Jun. 2024, [Invited]
• Physiological adaptation to the cold environment
  Hitoshi Wakabayashi
  The 2nd International Mini-Symposium on Environmental Ergonomics and Physiological Anthropology in the Thermal Environment, 15 Oct. 2022, Invited oral presentation
  [Invited]
• 〔主要な業績〕寒冷環境における身体作業能力低下への適応戦略～非温熱性刺激による体温調節機能の活性化～
  若林斉
  第36回運動と体温の研究会, 20 Sep. 2022
  [Invited]
• 〔主要な業績〕寒冷環境におけるコンディショニング～食による生理機能の活性化～
  若林斉
  日本スポーツ栄養学会第8回大会, 27 Aug. 2022
  [Invited]
• 寒冷環境における生理応答と運動パフォーマンス
  若林 斉
  新潟医療福祉大学 Sports Physiology Labセミナー, 19 May 2021
  [Invited]
• 〔Major achievements〕Variation in human brown adipose tissue activity and cold-induced thermogenesis
  Hitoshi Wakabayashi
  Virtual Environmental Ergonomics, 01 Apr. 2021, English, Nominated symposium
  [Invited]
• Environmental Ergonomics
  Hitoshi Wakabayashi
  General Lecture for Occupational Health and Safety Program Universitas Indonesia, 25 Nov. 2020, English, Public discourse
  [Invited]
• 水害時の身体パフォーマンス低下に対する生理的適応戦略
  若林 斉; 鈴木新一; 坂上輝将
  日本生理人類学会第81回大会 シンポジウム「気候変動と生理人類学」, 24 Oct. 2020, Nominated symposium
  [Invited]
• Innovation of healthy mild cold environment for sedentary workers
  Hitoshi Wakabayashi
  14th International Congress of Physiological Anthropology 2019, 25 Sep. 2019, English, Oral presentation
  [Invited], [International presentation]
• 低温環境での体温調節と作業能力
  若林 斉
  第38回被服衛生学セミナー，一般社団法人日本家政学会被服衛生学部会, 27 Aug. 2019, Japanese, Invited oral presentation
  [Invited], [Domestic Conference]
• 学位取得と就職の道のりについて－体育系から工学系に就職したケース－
  若林 斉
  体育科学専攻キャリア支援フォーラム，筑波大学人間総合科学研究科, 17 Jul. 2019, Japanese, Invited oral presentation
  [Invited], [Domestic Conference]
• 様々な温度環境に対する人体の生理応答
  若林 斉
  2019年度北海道大学公開講座－いま感じる、生かす、見つめなおす スポーツの力，北海道大学, 15 Jul. 2019, Japanese, Public discourse
  [Invited], [Domestic Conference]
• Two-minute hand immersion test for estimating finger skin temperature and manual dexterity during and after whole-body sub-zero cold air exposure
  Hitoshi Wakabayashi; Hiroki Watashima; Shinichi Suzuki; Shigeyuki Nagasaka
  International Conference on Environmental Ergonomic 2019, 12 Jul. 2019, English, Poster presentation
  [International presentation]
• Human brown adipose tissue and skeletal muscle contribution for resting, non－shivering and shivering thermogenesis during gradual cold exposure
  Hitoshi Wakabayashi; Kentaro Matsumoto; Yusuke Kobori; Mami Matsushita; Toshimitsu Kameya; Takafumi Maeda; Masayuki Saito
  International Conference on Environmental Ergonomic 2019, 12 Jul. 2019, English, Oral presentation
  [International presentation]
• 寒冷水中環境における骨格筋冷却下での運動トレーニング手法の開発
  若林 斉
  ヒューマン・ハイ・パフォーマンスCollaborative Researchシンポジウム, 05 Mar. 2019, Japanese
  [Invited], [Domestic Conference]
• Methodological issues in evaluating brown adipose tissue activity
  Hitoshi Wakabayashi
  Seminar on Physiological Measurements & Temperature Regulation, Seoul National University, 16 Feb. 2019, English, Invited oral presentation
  [Invited], [International presentation]
• The effect of cold induced vasodilation on skin temperature rewarming, manual dexterity and neuromuscular function
  WAKABAYASHI Hitoshi
  7th International Conference on the Physiology and Pharmacology of Temperature Regulation(PPTR), 11 Oct. 2018, English, Poster presentation
  [International presentation]
• Study on multiple organs coordination for non-shivering thermogenesis and vasomotor control in mild cold environment in human
  WAKABAYASHI Hitoshi
  7th International Conference on the Physiology and Pharmacology of Temperature Regulation(PPTR), 11 Oct. 2018, English, Oral presentation
  [International presentation]
• 寒冷環境が身体パフォーマンスに及ぼす影響とそのメカニズム
  若林 斉
  日本繊維製品消費科学会 第56回快適性・健康を考えるシンポジウム, 21 Sep. 2018
  [Invited]
• Training in Cold 骨格筋冷却状態で行う運動トレーニング
  若林 斉
  日本体育学会第69回大会 シンポジウム「異分野の掛け合わせで運動生理学研究の未来を拓く‐低酸素×寒冷×水中＝トレーニング効果増進？‐」, 24 Aug. 2018
  [Invited]
• 温熱と適応‐生活習慣の変容による人類の温熱環境適応能の潜在化と顕在化‐
  若林 斉; 前田 享史; 西村 貴孝
  日本生理人類学会第77回大会, 17 Jun. 2018, Japanese, Invited oral presentation
  [Invited], [Domestic Conference]
• 〔主要な業績〕Exercise in Cold, Live in Mild Cold
  若林 斉
  第20回日本体力医学会北海道地方会, 21 Apr. 2018, Japanese, Invited oral presentation
  [Invited], [Domestic Conference]
• 〔Major achievements〕Multiple organs coordination for cold induced thermogenesis in Japanese males.
  Wakabayashi H; Matsumoto K; Kobori Y; Saito M; Matsushita M; Kameya T
  The 17th International Conference on Environmental Ergonomics, 16 Nov. 2017, English, Invited oral presentation
  [Invited], [International presentation]
• Thermal environment for good workplace
  Hitoshi Wakabayashi; Sajal Chowdhury; Yasuhiro Hamada
  International Conference on Occupational Health and Safety 2017, 02 Nov. 2017, English, Nominated symposium
  [Invited], [International presentation]
• 寒冷環境における運動パフォーマンス低下とその要因
  若林 斉
  ARIHHP ヒューマン・ハイ・パフォーマンスフォーラム2017, 08 Mar. 2017, Japanese, Nominated symposium
  [Invited], [Domestic Conference]
• Physical performance and metabolic response in hypothermic skeletal muscle
  Hitoshi WAKABAYASHI; Mizuki OHSAWA; Yasuo SENGOKU
  JPA/JSPA/UTAR Seminar on Physiological Anthropology, 03 Mar. 2016, English, Invited oral presentation
  [Invited], [International presentation]
• ヒト骨格筋代謝機能に見られる寒冷適応
  若林 斉
  日本生理人類学会第72回大会 シンポジウム「代謝機能からみた全身的協関と適応能」, May 2015, 日本生理人類学会, Japanese
  札幌, [Invited], [Domestic Conference]
• Cold water immersion and adaptation
  Hitoshi Wakabayashi
  Symposium on Human Thermal Environments, Oct. 2013, Joo-Young Lee, Assistant Professor, College of Human Ecology, Seoul National University, English
  Seoul, Korea, [Invited]
• 暑熱環境下運動時における熱帯地住人の熱放散反応と体液量変化
  若林斉; Joo-Young Lee; Titis Wijayanto; 橋口暢子; Mohamed Saat; 栃原裕
  日本生理人類学会第64回大会 シンポジウム「暑熱環境への適応」, Jun. 2011, Japanese
  福岡, [Invited], [Domestic Conference]

• 室内気候学特論, 2024年, 修士課程, 工学院
• 環境人間工学特論, 2024年, 修士課程, 工学院
• 室内気候学特論, 2024年, 博士後期課程, 工学院
• 環境人間工学特論, 2024年, 博士後期課程, 工学院
• 環境生理学, 2024年, 学士課程, 工学部
• 環境工学序論, 2024年, 学士課程, 工学部
• 設計製図, 2024年, 学士課程, 工学部
• 環境工学実験Ⅲ, 2024年, 学士課程, 工学部
• 熱工学演習, 2024年, 学士課程, 工学部
• 環境工学概論, 2024年, 学士課程, 工学部
• 健康と社会, 2024年, 学士課程, 全学教育
• 熱工学Ⅱ, 2024年, 学士課程, 工学部
• 人間環境計画学, 2024年, 学士課程, 工学部

• Japan Society of Sciences in Swimming and Water Exercise
• The Society of Heating, Air-conditioning and Sanitary Engineers of Japan
• Extreme Physiology & Medicine
• American College of Sports Medicine
• Japanese Society of Human-Environment System
• Japan Society of Physiological Anthropology
• Japanese Society of Physical Fitness and Sports Medicine
• Japan Society of Physical Education, Health and Sport Sciences

• デジタルツインBESを用いた寒冷中小自治体のエネルギーセキュリティーに関する研究
  科学研究費補助金
  Apr. 2025 - Mar. 2030
  森 太郎; 細淵勇人; 桑原浩平; 岩間雄介; 中山哲士; 加用現空; 若林斉; 大沢飛智
  日本学術振興会, 基盤研究（A）, 北海道大学, Coinvestigator
• Activation of human brown adipose tissue using food ingredients that enhance the bioavailability of nitric oxide
  Grants-in-Aid for Scientific Research
  Apr. 2023 - Mar. 2027
  若林 斉; 斉藤 昌之; 松下 真美; 米代 武司; 崎浜 靖子; 渡邊 祐介
  Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Hokkaido University, Principal investigator, 23K28013
• ４万年のアジア人類史から読み解く「ヒト多様性のパラドックス」
  科研費 基盤研究（A）
  Apr. 2022 - Mar. 2027
  海部陽介; 松村博文; 坂上和弘; 大橋順; 木村亮介; 神澤秀明; 山内太郎; 西村貴孝; 若林 斉
  日本学術振興会, Coinvestigator
• 極端高温等が暑熱健康に及ぼす影響と適応策に関する研究
  環境研究総合推進費
  Apr. 2023 - Mar. 2026
  岡和孝; 高倉潤也; 西村貴孝; 若林斉
  国立環境研究所, Coinvestigator, 1-2307
• 社会実装を目指した看護師を熱ストレスから守るための個人防護具着用指針の開発
  科学研究費助成事業
  Apr. 2023 - Mar. 2026
  橋口 暢子; 傳法谷 郁乃; 若林 斉
  日本学術振興会, 基盤研究(B), 九州大学, 23H03183
• 有色ビーツ含有成分の抽出加工法の開発とヒト介入試験による食品機能性の解明
  コンソーシアム形成型ロバスト農林水産工学研究プログラム
  Apr. 2022 - Mar. 2023
  若林 斉; 崎浜 靖子; 橋本 誠; 木下 幹朗; 山下 慎司
  北海道大学ロバスト農林水産工学国際連携研究教育拠点, Principal investigator
• ヒトの寒冷適応能の全身的協関に見られる多様性と運動習慣による相乗効果
  科研費 基盤研究（B）
  Apr. 2019 - Mar. 2023
  若林 斉; 斉藤 昌之; 後藤 一成; 二連木 晋輔
  日本学術振興会, 基盤研究（B）, Principal investigator, Competitive research funding
• 有色ビーツおよび有色ビーツ由来ベタレイン色素のヒトに対する生理機能評価
  コンソーシアム形成型ロバスト農林水産工学研究プログラム
  Apr. 2021 - Mar. 2022
  崎浜 靖子,若林 斉,橋本 誠
  北海道大学ロバスト農林水産工学国際連携研究教育拠点構想, Coinvestigator
• 空気質による快適性・生産性の影響に関する研究
  共同研究
  Jul. 2019 - Mar. 2022
  若林 斉
  株式会社日立製作所, Principal investigator
• 骨格筋冷却下および低酸素環境下での運動の比較と相乗効果検証
  ARIHHP公募型共同利用・共同研究
  Jul. 2020 - Mar. 2021
  若林 斉
  国立大学法人筑波大学体育系ヒューマン・ハイ・パフォーマンス先端研究センター, Principal investigator
• 電気暖炉の生理・心理的効果に関する調査
  May 2020 - Mar. 2021
  若林 斉
  株式会社バーグマン, 共同研究, Principal investigator
• レッドビートドリンク摂取により寒冷地作業者の末梢部血流は促進されるか？
  萌芽研究型ロバスト農林水産工学研究プログラム
  Apr. 2020 - Mar. 2021
  若林 斉
  北海道大学ロバスト農林水産工学国際連携研究教育拠点構想, Principal investigator
• 低圧低酸素および寒冷環境に対する循環調節系の適応反応とその多型性
  基盤研究B 研究分担者
  Apr. 2018 - Mar. 2021
  前田 享史; 研究分担者; 若林 斉; 安河内 彦輝
  日本学術振興会, Principal investigator, Competitive research funding
• 骨格筋冷却下および低酸素環境下での運動の類似性と特異性の検証
  ARIHHP公募型共同利用・共同研究
  Jun. 2019 - Mar. 2020
  若林 斉
  国立大学法人筑波大学体育系ヒューマン・ハイ・パフォーマンス先端研究センター, Principal investigator
• 暑熱環境下における体感温度に影響を与える精油の探索
  共同研究
  Mar. 2019 - Dec. 2019
  若林 斉
  公益社団法人 日本アロマ環境協会, Principal investigator, Competitive research funding
• 寒冷環境下における体感温度に影響を与える精油の探索
  共同研究
  Feb. 2019 - Sep. 2019
  若林 斉
  公益社団法人 日本アロマ環境協会, Principal investigator, Competitive research funding
• 若手研究者のための研究助成金
  Oct. 2018 - Mar. 2019
  若林 斉
  日本生理人類学会, Principal investigator, Competitive research funding
• 寒冷水中環境における骨格筋冷却トレーニング手法の開発と検証
  ARIHHP公募型共同利用・共同研究
  Jun. 2018 - Mar. 2019
  若林 斉
  国立大学法人筑波大学体育系ヒューマン・ハイ・パフォーマンス先端研究センター, Principal investigator, Competitive research funding
• 住環境温度設定における温熱的嗜好性を左右する人体側特性の検証
  北海道ガス大学研究支援制度
  Jun. 2018 - Mar. 2019
  若林 斉
  北海道ガス株式会社, Principal investigator, Competitive research funding
• ヒト褐色脂肪組織の新規評価法の開発と小児への戸外運動の効果
  2018年度第16回花王健康科学研究助成金 共同研究者
  Sep. 2018 - 2019
  二連木; 晋輔; 共同研究者; 若林 斉; 斉藤 昌之; 坂根 直樹
  花王健康科学研究会, Principal investigator, Competitive research funding
• Adaptation in manual dexterity and muscle performance to cold conditions
  The Great Britain Sasakawa Foundation
  Nov. 2017 - Dec. 2018
  Martin J Barwood; Hitoshi Wakabayashi
  The Great Britain Sasakawa Foundation, Principal investigator, Competitive research funding
• 寒冷水中環境における骨格筋冷却下で行う運動トレーニング手法の開発
  ARIHHP公募型共同利用・共同研究
  Jun. 2017 - Mar. 2018
  若林 斉
  国立大学法人筑波大学体育系ヒューマン・ハイ・パフォーマンス先端研究センター, Principal investigator, Competitive research funding
• 現代の子どもの生活運動習慣が体温概日リズムおよび体力・体格に及ぼす影響の縦断的調査
  第11期スポーツチャレンジ研究助成
  Apr. 2017 - Mar. 2018
  若林 斉
  ヤマハ発動機スポーツ振興財団, Principal investigator, Competitive research funding
• 骨格筋冷却による筋代謝制限下で行う運動トレーニング手法の開発
  挑戦的萌芽研究
  Apr. 2015 - Mar. 2018
  若林 斉
  日本学術振興会, Principal investigator, Competitive research funding
• 寒冷環境に対するヒトの体温調節応答の適応順序性および組織代謝との協関
  基盤研究(B)
  Apr. 2014 - Mar. 2018
  若林 斉
  日本学術振興会, Principal investigator, Competitive research funding
• 環境生理学に基づく空調方式に関する研究
  産学連携
  Oct. 2017
  若林 斉
  新日本空調株式会社, Principal investigator
• 寒冷水中環境における運動時代謝応答とトレーニング効果に関する研究
  ARIHHP公募型共同利用・共同研究
  Sep. 2016 - Mar. 2017
  若林 斉
  国立大学法人筑波大学体育系ヒューマン・ハイ・パフォーマンス先端研究センター, Principal investigator, Competitive research funding
• 現代の子どもの生活運動習慣が体温概日リズムおよび発育・発達に及ぼす影響の検討
  奨学寄附
  Apr. 2013 - Mar. 2014
  若林 斉
  公益財団法人ヤマハ発動機スポーツ振興財団, Principal investigator, Competitive research funding
• 前腕部の繰り返し冷却に伴うハンドグリップ運動時骨格筋酸素動態の適応
  奨学寄附
  Apr. 2012 - Mar. 2013
  若林 斉
  公益財団法人石本記念デサントスポーツ科学振興財団, Principal investigator, Competitive research funding
• 水中運動時における総合的温熱快適性評価手法の開発
  特別研究員奨励費
  Apr. 2009 - Mar. 2012
  若林 斉
  日本学術振興会, Principal investigator, Competitive research funding
• 水中運動時における総合的温熱快適性評価手法の開発（海外派遣）
  優秀若手研究者海外派遣事業（特別研究員）
  Dec. 2009 - Nov. 2010
  若林 斉
  日本学術振興会, Principal investigator, Competitive research funding
• 身体特性および運動強度を考慮した水中運動時における温熱的快適性の推定手法の開発
  若手研究（スタートアップ）
  2007 - Mar. 2009
  若林 斉
  日本学術振興会, Principal investigator, Competitive research funding
• 小学校水泳授業における保温水着着用の基準設定－環境条件および身体特性を考慮して－
  奨学寄附
  Jun. 2007 - Mar. 2008
  若林 斉
  財団法人石本記念デサントスポーツ科学振興財団, Principal investigator, Competitive research funding