Department of Life Sciences, Whitelands College, University of Roehampton, London, United Kingdom.
J Strength Cond Res. 2013 Jun;27(6):1597-601. doi: 10.1519/JSC.0b013e318269f7f1.
The aim of this study was to establish the criterion validity of the SmartJump contact mat in assessing vertical jump height (VJH) and peak power (PP). Twenty-three participants (15 men, age = 26 ± 6 years; 8 women, age = 26 ± 9 years) completed a maximal effort vertical jump using 3 different jump types (countermovement jump [CMJ], countermovement with arms [CMJA], and squat jump [SJ]). Data were simultaneously collected on both the contact mat and force platform. Vertical jump height was calculated using the time in air (TIA) method with both force platform (TIA(platform)) and contact mat (TIA(mat)) data and the takeoff velocity (TOV) method using the force platform (TOV(platform)) data. Peak power was calculated using a validated equation. The results showed that VJH and PP calculated using the TIA(mat) method were significantly greater than that calculated from the TIA(platform) and TOV(platform) methods for all jump types (VJH: p < 0.001, PP: p < 0.001). The results from this study show clear discrepancies between apparatus and calculation methods that may have implications for practitioners and should be considered when assessing VJH and PP in the field.
本研究旨在确立 SmartJump 接触垫在评估垂直跳跃高度（VJH）和峰值功率（PP）方面的效标效度。23 名参与者（15 名男性，年龄=26±6 岁；8 名女性，年龄=26±9 岁）分别使用 3 种不同的跳跃类型（反跳式跳跃[CMJ]、带臂反跳式跳跃[CMJA]和深蹲跳跃[SJ]）完成了最大努力的垂直跳跃。接触垫和力量平台同时采集数据。使用力平台（TIA(platform)) 和接触垫（TIA(mat)）数据的空中时间（TIA）方法和使用力平台（TOV(platform)) 数据的起飞速度（TOV）方法计算垂直跳跃高度。使用验证过的方程计算峰值功率。结果表明，对于所有跳跃类型，使用 TIA(mat)方法计算的 VJH 和 PP 均显著大于 TIA(platform)和 TOV(platform)方法（VJH：p<0.001，PP：p<0.001）。本研究结果表明，仪器和计算方法之间存在明显差异，这可能对从业者有影响，在现场评估 VJH 和 PP 时应予以考虑。
