The effect of biological sex on cool seeking behavior during passive heat stress in young adults.

IF 2.8 3区医学 Q2 PHYSIOLOGY

European Journal of Applied Physiology Pub Date : 2025-02-13 DOI:10.1007/s00421-025-05702-8

Hui Wang, Zachary J Schlader, Tze-Huan Lei, Toby Mündel, Tatsuro Amano, Naoto Fujii, Takeshi Nishiyasu, Narihiko Kondo

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引用次数: 0

Abstract

Purpose: This study tested the hypothesis that females engage in cool seeking behavior to a greater extent during passive heating compared to males.

Methods: 27 healthy participants (14 males) underwent two trials of 50 min lower leg passive heating with (Fan trial) and without the fan (No fan trial) in a 27 °C, 50% relative humidity environment. In the Fan trials, participants were allowed to use the fan by pressing the button to keep themselves comfortable while they were not allowed in the No fan trial.

Results: Cool seeking behavior was initiated at the same change (∆) in rectal temperature (0.2 (0.2) °C vs 0.2 (0.1) °C, p = 0.281) and ∆ mean skin temperature (2.1 (0.6) °C vs 2.3 (0.6) °C, p = 0.307), but cooling time was longer (13.5 (5.4) min vs 17.3 (3.9) min, p = 0.040) and cumulative number of times pressing the button is more often (7.3 (3.6) times vs 10.8 (4.6) times, p = 0.049) in females compared to males. Thermal sensation, thermal discomfort, and perceived skin wetness were not different between sexes during lower leg passive heating in all trials (all p > 0.145). Furthermore, whole body sweat loss and local sweat rate on the forearm were significantly higher in males compared to females (all p < 0.042) across Fan and No fan trials.

Conclusion: In conclusion, females engage in cool seeking behavior to a greater extent than males. Furthermore, thermal perceptions are not different between sexes during passive heating.

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来源期刊

European Journal of Applied Physiology 医学-生理学

CiteScore

6.00

自引率

6.70%

发文量

227

审稿时长

3 months

期刊介绍： The European Journal of Applied Physiology (EJAP) aims to promote mechanistic advances in human integrative and translational physiology. Physiology is viewed broadly, having overlapping context with related disciplines such as biomechanics, biochemistry, endocrinology, ergonomics, immunology, motor control, and nutrition. EJAP welcomes studies dealing with physical exercise, training and performance. Studies addressing physiological mechanisms are preferred over descriptive studies. Papers dealing with animal models or pathophysiological conditions are not excluded from consideration, but must be clearly relevant to human physiology.