期刊名称：Facta Universitatis : Series Physical Education and Sport
印刷版ISSN：1451-740X
出版年度：2002
卷号：1
期号：9
出版社：University of Niš
摘要：The primary purpose of this study was to determine whether the relationship between energetic consumption and speed during low speed running fit a quadratic or linear model better, and to determine the effect of model choice on the energetically optimal transition speed (EOTS). Subjects walked and ran on a treadmill at speeds ranging from 60% to 120% of their preferred transition speed (PTS) while and RPE data were collected. A quadratic model fit the energy data better than a linear model for walking (r2 = 1.00) and running (r2 = 0.94). Neither model was superior in fitting RPE data to speed during walking and running. The EOTS occurred at 110% of the PTS (2.20 ms-1), close to the EOTS found using a linear model. At low running speeds, a quadratic model for energy-speed data is superior to a linear model, although model choice has little effect on the determination of EOTS.
关键词：metabolic cost, gait transition, human locomotion
