Effects of fatigue on stride characteristics during a short-term maximal run

被引:12
|
作者
Nummela, A
StrayGundersen, J
Rusko, H
机构
[1] Res. Institute for Olympic Sports, FIN-40700 Jyväskylä
[2] Baylor/University of Texas, Southwestern Sports Sci. Res. Ctr., Dallas, TX 75246
关键词
D O I
10.1123/jab.12.2.151
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The purpose of this investigation was to examine the influence of running velocity, stride characteristics, training background, gender, and caliber of a runner on the changes in ground contact time during a 400-m run. Thirteen male and 4 female sprinters ran a 400-m rime trial on the track, and 8 male sprinters and 6 male endurance athletes ran a simulated 400-m trial at constant velocity on the treadmill. A special shoe insert was placed in the track spike to determine contact time, and a video camera was used to determine split times for each 40 m. Two threshold points were identified during the 400-m run, with the first occurring when the running velocity began to decrease. The threshold points were affected by the individual running strategy and reflected fatigue-induced changes in the running velocity; they also were independent of gender, training background, and caliber of an athlete.
引用
收藏
页码:151 / 160
页数:10
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