PRELIMINARY STUDY OF THE MECHANICAL OUTPUT WORK OF BODY SEGMENTS DURING MEN'S 1500M RUNNING

  • Mingfang Lin
  • Liangbiao Li
Keywords: mechanical output work, energy transfer, energy expenditure, running

Abstract

The rational energy allocation, energy transfer and the effective use of physiological energy of body segments during exercise were studied. Four distance runners served as objects were analyzed from films taken during a simulated test and their physiological energy costs (PEC) were estimated based on oxygen consumption (VO2). The results has revealed the proportion of the mechanical output work (MOW) of different body segments during 1500m running and indicated that the work of the swinging leg was the highest (34.57%), followed by that of the supporting leg (28.08%). The percentage of the upper limbs' work was equal to that of the trunk (about 17% respectively), and the output work of the head was only the lowest (2.73%). Energy transfer took place both within and between segments during running and energy transferred between segments was the major part.