Influence of environmental temperature on 40 km cycling time-trial performance
作者： Jeremiah J. Peiffer , Chris R. Abbiss
关键词: Animal science 、 Environmental chamber 、 Time trial 、 Standard deviation 、 Environmental temperature 、 Heart rate 、 Simulation 、 Environmental science 、 Core (anatomy) 、 Thermoregulation 、 Cycling
摘要: The purpose of this study was to examine the effect environmental temperature on variability in power output, self-selected pacing strategies, and performance during a prolonged cycling time trial. Nine trained male cyclists randomly completed four 40 km trials an chamber at 17°C, 22°C, 27°C, 32°C (40% RH). During trials, heart rate, core body temperature, output were recorded. assessed with use exposure variation analysis. Mean significantly lower (309 ± 35 W) compared 17°C (329 31 W), 22°C (324 34 27°C (322 32 W). In addition, greater production observed as evidenced by (P = .03) standard deviation matrix (2.9 0.5 vs 3.5 0.4 units, respectively). Core < .05) from 30 km, rate rise throughout trial (0.06 0.04°C·km-1) (0.05 0.05°C·km-1). This showed that time-trial is reduced under hot conditions, associated shift composition output. These finding provide insight into control strategies exercise heat.
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