Can evaporative cooling attenuate physiological and perceptual responses during exercise in Hot/Dry and Warm/Humid environments?

ABSTRACT: This study evaluated the effects of evaporative cooling using a water-soaked inner t-shirt with a ventilation garment on physiological and perceptual responses during walking in Hot/Dry (40°C, 30% relative humidity) and Warm/Humid (32°C, 80% relative humidity) environments (wet-bulb globe temperature [WBGT] 31.5°C). Eight men performed a 60-min moderate-intensity exercise protocol under control (CON, fan-off of a ventilation jacket while wearing a dry inner t-shirt) and evaporative cooling conditions (EVA, fan-on of a ventilation jacket while wearing an inner t-shirt soaked with 350 ml of tap water) in each environment. Rectal temperature was ~0.4°C lower during exercise in EVA than CON in both Hot/Dry (37.7 ± 0.4 vs. 38.1 ± 0.3°C, p=0.001) and Warm/Humid (37.8 ± 0.4 vs. 38.2 ± 0.4°C, p=0.

SUBMITTER: Tokizawa K 

PROVIDER: S-EPMC12832178 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature