Thermal Responses During Extended Water Immersion: Comparisons of Rest and Exercise, and Levels of Immersion.

摘要

Phase 1 exposed 14 subjects to the neck in 3 water temperatures during both rest (R) and exercise (E) conditions for up to 3h; 8 subjects in Phase 2 were exposed to the knee (KN), hip (HI), and chest (CH) in water at 15 and 25 deg C during R and E. In Phase 1 the % Body Fat was 9.5 for the low-fat (L, N=5), 14.8 for the moderate-fat (A, N=5), and 19.6 for the high-fat (H, N=4). Subjects were immersed on four occasions (two temperatures X two activities) for durations up to 3h. During R at equivalent thermal strain, rectal and esophageal temperatures declined similarly in all groups over 3h.