Marques Mário C, Izquierdo Mikel, Marinho Daniel A, Barbosa Tiago M, Ferraz Ricardo, González-Badillo Juan José
1Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal; 2Research Centre in Sport, Health and Human Development, Vila Real, Portugal; 3Department of Health Sciences, Public University of Navarre, Pamplona, Navarre, Spain; 4National Institute of Education, Nanyang Technological University, Singapore, Singapore; and 5Faculty of Sport, Pablo de Olavide University, Seville, Spain.
J Strength Cond Res. 2015 Jul;29(7):2045-9. doi: 10.1519/JSC.0000000000000739.
Countermovement jump (CMJ) has been extensively used in training; yet, limited and contradictory kinematic data are available for trained subjects. To our best knowledge, no other studies have evaluated the associations between force-time curve characteristics and CMJ in a large sample of trained athletes using a linear transducer. Thus, the aim of this study was to determine the association between force-time measures and CMJ performance collected with a linear transducer. Thirty-five trained athletes were asked to perform 3 maximal weighted CMJ using a linear transducer attached to a barbell (17 kg). The data indicated that the maximal rate of force development (RFD(max)) was strongly related to CMJ displacement (r = 0.809/0.807, p < 0.001) and also to the percentage of peak force (r = -0.823/-0.809, p < 0.001) at RFD(max). Velocity and displacement at RFD(max) were not correlated to CMJ height. It was therefore concluded that the percentage of PF applied at RFD(max) and RFD(max) were the best predictive variables for CMJ performance in this study.
下蹲跳(CMJ)已在训练中广泛应用;然而,关于受过训练的受试者的运动学数据有限且相互矛盾。据我们所知,尚无其他研究使用线性传感器在大量受过训练的运动员样本中评估力-时间曲线特征与下蹲跳之间的关联。因此,本研究的目的是确定使用线性传感器收集的力-时间测量值与下蹲跳表现之间的关联。35名受过训练的运动员被要求使用连接在杠铃(17千克)上的线性传感器进行3次最大负荷下蹲跳。数据表明,最大力发展速率(RFD(max))与下蹲跳位移密切相关(r = 0.809/0.807,p < 0.001),并且与RFD(max)时的峰值力百分比也密切相关(r = -0.823/-0.809,p < 0.001)。RFD(max)时的速度和位移与下蹲跳高度无关。因此得出结论,在本研究中,RFD(max)时施加的峰值力百分比和RFD(max)是下蹲跳表现的最佳预测变量。