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In order to assess different methods of skin surface cooling to reduce exercise-heat stress, this study analyzed the differences in thermoregulatory responses between water-perfused suits (WS) and vests (WV) during exercise in a hot environment. Six male subjects performed three sessions of 20-min cycling at light intensity (250 W/m2) in a room maintained at 28°C (wet-bulb globe temperature, WBGT). The epperiment was performed under seven different conditions, involving three sets of clothing, WS or WV at 14°C (WS14, WV14), 20°C (WS20, WV20) and 26°C (WS26, WV26), and fencing uniforms (FU) only without cooling by water perfusion. In WS conditions, increases in Tes (ΔTes), mean skin temperature (Tsk), heart response (HR), thermal sensation (TS), and total sweat loss (TSL) were significantly (p |
