文章基本信息

标题：Pacing and Changes in Body Composition in 48 h Ultra-Endurance Running—A Case Study
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作者：Beat Knechtle ; Thomas Rosemann ; Pantelis T. Nikolaidis 等
期刊名称：Sports
电子版ISSN：2075-4663
出版年度：2018
卷号：6
期号：4
页码：136-145
DOI：10.3390/sports6040136
出版社：MDPI Publishing
摘要：Pacing has been investigated in elite and master runners competing in marathon and ultra-marathon races up to 100 km and 100 miles, but not in longer ultra-marathons. In this case study, a 54-year-old master ultra-marathoner—intending to achieve as many kilometers as possible in a 48 h run—was examined. The changes in running speed during the race and selected anthropometric characteristics using bioelectrical impedance analysis (i.e., body mass and body water), during and after the race, were analyzed. The runner achieved a total distance of 230 km and running speed decreased non-linearly during the race. Body mass decreased, while percent body water increased, non-linearly, across the race. There was no statistically significant relationship between the decrease in body mass and the increase in percent body water. Considering the popularity of ultra-endurance running races, the findings of the present study offered valuable insight in the pacing and changes of body mass and body water during a 48 h run, and this information can be used by ultra-endurance runners and practitioners working with them.
关键词：aerobic exercise; endurance performance; master athlete; running; body fat; body water aerobic exercise ; endurance performance ; master athlete ; running ; body fat ; body water