抄録
Twelve male adults, aged 18-31 yr, exercised on a bicycle ergometer for 32 min at each of the two kinds of work loads, i.e., 300 and 600 kgm/min, in a warm environment (DBT=29.2± 1.44°C, WBT=22.8±2.05°C. Oxygen uptake (VO_2) and increase in rectal temperature (ΔTr) were measured at the last of the exercise. The skinfold thicknesees were measured at six sites, i.e., triceps, chest, abdomen, iliac, subscapula, and thigh. Mean skinfold thickness (MSF), body density, body fat (Fat), Iean body mass (LBM) and body surface area (BSA) were calculated from the prediction equations. The multiple correlations for ΔTr, VO_2, weight(wi) and MSF, and for ΔTr, VO_2, Wt and Fat were found to be siguificant (R=0.874 and R=0.871), and the multiple regressions of ΔTr (°C) on VO_2 (ml/min), Wt (kg) and MSF (mm), and on VO_2, Wt and Fat (kg) Were calculated as, △Tr= 1.85+0.000661 VO2-0.0418 Wt+0.0289 MSF, and ΔTr= 2.01+0.000658 VO_2-0.0472 Wt+0.0568 Fat. These equations may indicate that the increase in body temperature is accelerated by the thick subcutaneous fat and/or by the rich adipose tissue.
