KINEMATIC AND KINETIC COMPARISONS OF ELITE AND WELL-TRAINED SPRINTERS DURING SPRINT START
KINEMATIC AND KINETIC COMPARISONS OF ELITE AND WELL-TRAINED SPRINTERS DURING SPRINT START
复制标题
DOI：
10.1519/jsc.0b013e3181ad3448
复制
发表时间：
2010-04-01
影响因子：
3.2
通讯作者：
Cheze, Laurence
中科院分区：
文献类型：
--
作者：
Slawinski, Jean;Bonnefoy, Alice;Cheze, Laurence
Slawinski， J, Bonnefoy， A, Leveque， JM, Ontanon， G, Riquet， A, Dumas， R，和Cheze， L.短跑起跑时优秀和训练良好的短跑运动员的运动学和动力学比较。[J] .力量杂志，24(4):896-905,2010-本研究的目的是比较优秀和训练有素的短跑运动员在起跑阶段和随后的两个步骤中的主要运动学，动力学和动力学参数。6名优秀短跑运动员（10.06-10.43秒/100米）和6名训练有素的短跑运动员（11.01-11.80秒/100米）配备了63个被动反射标记，在室内跑道上进行了4次10米冲刺的最大起跑。采用由12台数码相机（250 Hz）组成的光电运动分析系统记录三维标记轨迹。在“出发”、“起跳”、“过挡”、“第一步和第二步落地和起跳”的时刻，计算质心的水平位置（CM）、质心的速度（XCM和VCM）、后手和前手的水平位置（X（Hand_rear）和X(Hand_front)）。在起跑块的推动阶段和前2步，还计算了力的发展速度和冲量F（冲量）。主要结果表明，优秀短跑运动员的XCM和VCM在各时段均显著增高。此外，在推动阶段，优秀短跑运动员的力量发展速率和F（冲量）显著高于优秀短跑运动员（分别为15,505 +/- 5,397 N.s（-1）和8,459 +/- 3,811 N.s(-1)）；F（脉冲）为276.2 +/- 36.0 N.s和215.4 +/- 28.5 N.s, p
Slawinski, J, Bonnefoy, A, Leveque, JM, Ontanon, G, Riquet, A, Dumas, R, and Cheze, L. Kinematic and kinetic comparisons of elite and well-trained sprinters during sprint start. J Strength Cond Res 24(4): 896-905, 2010-The purpose of this study was to compare the main kinematic, kinetic, and dynamic parameters of elite and well-trained sprinters during the starting block phase and the 2 subsequent steps. Six elite sprinters (10.06-10.43 s/100 m) and 6 well-trained sprinters (11.01-11.80 s/100 m) equipped with 63 passive reflective markers performed 4 maximal 10 m sprint starts on an indoor track. An optoelectronic motion analysis system consisting of 12 digital cameras (250 Hz) was used to record 3D marker trajectories. At the times "on your marks," "set," "clearing the block," and "landing and toe-off of the first and second step," the horizontal position of the center of mass (CM), its velocity (XCM and VCM), and the horizontal position of the rear and front hand (X(Hand_rear) and X(Hand_front)) were calculated. During the pushing phase on the starting block and the 2 first steps, the rate of force development and the impulse (F(impulse)) were also calculated. The main results showed that at each time XCM and VCM were significantly greater in elite sprinters. Moreover, during the pushing phase on the block, the rate of force development and F(impulse) were significantly greater in elite sprinters (respectively, 15,505 +/- 5,397 N.s(-1) and 8,459 +/- 3,811 N.s(-1) for the rate of force development; 276.2 +/- 36.0 N.s and 215.4 +/- 28.5 N.s for F(impulse), p