Metabolic and thermoregulatory responses during treadmill running have been investigated at different wind-speeds in a controlled climatic chamber (10°C, 50% humidity). Five distance runners were tested twice at wind-speed of 2.5~7.67 m/sec. Following 20-minutes rest and 3 min warm-up, 80 minutes running was applied by a treadmill, with which the wind speed was increased by a step of 1.5 m/sec every 20 minutes. The values of oxygen intake at any speed, were determined at the termination of every 20 min, were not found to be affected by differences ranging wind speed of 2.5~7.67m/sec.
　Mean skin temperature and a thermal sensation decreased as the speed of wind movement increased. Heat loss increased sharply at a wind speed of about 4 m/sec. During 80-min running, body heat storage were only-20 to 20 kcal/m²・h at any wind-speed. From these results it is suggested that jogger and athletes should have gloves, warmer of forearm and a thin short pants at training and race during winter season.

DESCENTE SPORTS SCIENCE Vol.12/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE