Villaseñor A, Turcotte R A, Pearsall D J
Department of Kinesiology and Physical Education, McGill University, Montréal, Québec, Canada.
J Appl Biomech. 2006 Aug;22(3):202-11. doi: 10.1123/jab.22.3.202.
The purpose of this study was to examine the "recoil" effect of the ice hockey stick shaft during a stationary slap shot. Nine male adult subjects (four elite and five recreational) were tested. Their performances were evaluated by simultaneously recording stick movement and internal bending from high-speed digital video (1,000 Hz) and puck acceleration from a triaxial accelerometer positioned inside the puck. In addition, an electrical circuit measured blade-puck contact time. Data were analyzed with a one-way MANOVA for several dependent variables, including final puck velocity, puck acceleration, maximum stick shaft bending (angle and distance deflection), stick shaft angular velocities, blade-puck contact time, and corresponding time events. The results indicate the following. First, blade-puck contact time was greater for the elite than for recreational players (38 +/- 9 ms and 27 +/- 5 ms); however, measures for puck acceleration were essentially the same (63.8 g +/- 9.9 and 61.8 g +/- 19.5). Two, the elite players were able to generate greater puck velocities (120 +/- 18 km/h and 80.3 +/- 11.6 km/h). Three, the recoil timing was found to be reater for elite players (59.8% of blade-puck contact).
本研究的目的是考察在静止抽射过程中冰球杆杆身的“反冲”效应。对9名成年男性受试者（4名精英球员和5名业余球员）进行了测试。通过高速数字视频（1000Hz）同步记录杆的运动和内部弯曲情况，以及位于冰球内部的三轴加速度计测量冰球的加速度，对他们的表现进行评估。此外，一个电路测量球杆与冰球的接触时间。对包括冰球最终速度、冰球加速度、杆身最大弯曲度（角度和距离偏移）、杆身角速度、球杆与冰球接触时间以及相应时间事件等几个因变量，用单因素多元方差分析对数据进行了分析。结果如下。第一，精英球员的球杆与冰球接触时间比业余球员长（分别为38±9毫秒和27±5毫秒）；然而，冰球加速度的测量结果基本相同（分别为63.8g±9.9和61.8g±19.5）。第二，精英球员能够使冰球产生更高的速度（分别为120±18公里/小时和80.3±11.6公里/小时）。第三，发现精英球员的反冲时机更迟（占球杆与冰球接触时间的59.8%）。
