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Knechtle, Beat; Wirth, Andrea; Baumann, Barbara; Knechtle, Patrizia; Rosemann, Thomas – Research Quarterly for Exercise and Sport, 2010
We studied male and female nonprofessional Ironman triathletes to determine whether percent body fat, training, and/or previous race experience were associated with race performance. We used simple linear regression analysis, with total race time as the dependent variable, to investigate the relationship among athletes' percent body fat, average…
Descriptors: Body Composition, Physical Fitness, Athletes, Physical Activities
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Knechtle, Beat; Knechtle, Patrizia; Rosemann, Thomas; Oliver, Senn – Research Quarterly for Exercise and Sport, 2010
A loss in total body mass during an ultraendurance performance is usually attributed to dehydration. We identified the changes in total body mass, fat mass, skeletal muscle mass, and selected markers of hydration status in 31 male nonprofessional ultratriathletes participating in a Triple Iron triathlon involving 11.4 km swimming, 540 km cycling…
Descriptors: Body Composition, Physical Fitness, Human Body, Athletics
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Knechtle, Beat; Wirth, Andrea; Knechtle, Patrizia; Rosemann, Thomas – Research Quarterly for Exercise and Sport, 2009
In 28 male Caucasian nonprofessional ultracyclists, we investigated whether anthropometry or training volume had an influence on race speed in the 600 km at the Swiss Cycling Marathon 2007. Anthropometric parameters (age, body mass, body height, skinfold thicknesses) were determined before the race to calculate body mass index and percent body…
Descriptors: Males, Physical Activities, Competition, Whites
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Knechtle, Beat; Wirth, Andrea; Knechtle, Patrizia; Rosemann, Thomas – Research Quarterly for Exercise and Sport, 2009
We investigated whether ultraendurance runners in a 100-km run suffer a decrease of body mass and whether this loss consists of fat mass, skeletal muscle mass, or total body water. Male ultrarunners were measured pre- and postrace to determine body mass, fat mass, and skeletal muscle mass by using the anthropometric method. In addition,…
Descriptors: Body Composition, Physical Fitness, Human Body, Physical Activities