Elevated Humidity Impairs Evaporative Heat Loss and Self-Paced Exercise Performance in the Heat.

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Tác giả: Felicity M Bright, Brad Clark, Ollie Jay, Julien D Périard

Ngôn ngữ: eng

Ký hiệu phân loại: 133.594 Types or schools of astrology originating in or associated with a

Thông tin xuất bản: Denmark : Scandinavian journal of medicine & science in sports , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 724091

 This study investigated the effects of absolute humidity on heat dissipation and subsequent thermal, cardiovascular, and performance responses during self-paced exercise in the heat. Twelve trained male cyclists performed a 700-kJ time trial in four different humidity conditions (Low: 1.6 kPa, Moderate: 2.5 kPa, High: 3.5 kPa, and Very high: 4.5 kPa) in 33°C. The gradient in partial water vapor pressure at the saturated skin surface and in air, which determines sweat evaporation, decreased significantly with increasing humidity (Low: 3.53 ± 0.30 kPa, Moderate: 2.74 ± 0.24 kPa, High: 1.99 ± 0.20 kPa, Very high: 1.19 ± 0.16 kPa
  p <
  0.001). The maximum evaporative capacity of the environment (E
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