Research Seeds

PDF Effects of Keeping Warm of the Peripheral Parts of the Body During Exercise in a Cold Environment

【Supercategory:7. DESCENTE SPORTS SCIENCE Subcategory:7.8 Vol.8

 Recently, we can see many people wearing gloves and stockings during jogging in winter. However, there were few studies regarding the effects of wearing these garments on psychophysiological responses during exercise. Therefore, thermal sensations and physiological responses of 8 female students, exercising at 70W on a bicycle ergometer in a cold environment (15℃) and wearing two different types of clothings, were studied. As for clothing, say C, the subjects wear shirts with halflength sleeves and shorts, and for clothing, W, they wear gloves and stockings in addition to clothing C.
 1) Rectal temperatures in clothing W were slightly lower than those in clothing C.
 2) Although forearm and thigh were not kept warm in the cold environment, skin temperatures at these sites in clothing W were higher than those in clothing C.
 3) As the skin temperatures at the peripheral parts of the body were higher in clothing W than in clothing C, the thermal sensations for local areas of the limps were voted significantly warmer in clothing W than in clothing C. However, there were no distinct differences in thermal comfort between the two clothing conditions.
 4) Keeping warm of peripheral parts of the body did not have an effect on blood pressure and heart rate during exercise and resting.
 5) There were no differences in respiratory frequency (Rf) and metabolism (M) during the later half of the exercise and resting between the two clothing conditions. However, during the beginning of the exercise, Rf and M in clothing W were lower than those in clothing C.

DESCENTE SPORTS SCIENCE Vol.8/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
Researcher Yutaka Tochihara*1, Keiichi Yoshida*2, Machiko Ichikawa*3, Norimi Hasegawa*3
University or institution *1 Department of Physiological Hygiene, The Institute of Public Health, *2 Faculty of Home Economics, Jissen Women's University, *3 Faculty of Home Economics, Sugino Women's University

Keywords

physiological responses, exercise, thermal sensations, peripheral parts of the body