García-Ramos Amador, Feriche Belén, Pérez-Castilla Alejandro, Padial Paulino, Jaric Slobodan
a Department of Physical Education and Sport, Faculty of Sport Sciences , University of Granada , Granada , Spain.
b Department of Kinesiology and Applied Physiology & Biomechanics and Movement Science Graduate Program , University of Delaware , Newark , DE , USA.
Eur J Sport Sci. 2017 Jul;17(6):690-698. doi: 10.1080/17461391.2017.1304999. Epub 2017 Mar 24.
This study aimed to explore the strength of the force-velocity (F-V) relationship of lower limb muscles and the reliability of its parameters (maximum force [F], slope [a], maximum velocity [V], and maximum power [P]). Twenty-three men were tested in two different jump types (squat and countermovement jump: SJ and CMJ), performed under two different loading conditions (free weight and Smith machine: Free and Smith) with 0, 17, 30, 45, 60, and 75 kg loads. The maximum and averaged values of F and V were obtained for the F-V relationship modelling. All F-V relationships were strong and linear independently whether observed from the averaged across the participants (r ≥ 0.98) or individual data (r = 0.94-0.98), while their parameters were generally highly reliable (F [CV: 4.85%, ICC: 0.87], V [CV: 6.10%, ICC: 0.82], a [CV: 10.5%, ICC: 0.81], and P [CV: 3.5%, ICC: 0.93]). Both the strength of the F-V relationships and the reliability of their parameters were significantly higher for (1) the CMJ over the SJ, (2) the Free over the Smith loading type, and (3) the maximum over the averaged F and V variables. In conclusion, although the F-V relationships obtained from all the jumps tested were linear and generally highly reliable, the less appropriate choice for testing the F-V relationship could be through the averaged F and V data obtained from the SJ performed either in a Free weight or in a Smith machine. Insubstantial differences exist among the other combinations tested.
本研究旨在探讨下肢肌肉力量-速度（F-V）关系的强度及其参数（最大力量[F]、斜率[a]、最大速度[V]和最大功率[P]）的可靠性。对23名男性进行了两种不同跳跃类型（深蹲跳和反向纵跳：SJ和CMJ）的测试，在两种不同负荷条件（自由重量和史密斯机：Free和Smith）下，负荷分别为0、17、30、45、60和75 kg。通过F-V关系建模获得F和V的最大值及平均值。无论从参与者的平均值（r ≥ 0.98）还是个体数据（r = 0.94 - 0.98）来看，所有F-V关系均为强线性关系，而其参数通常具有高度可靠性（F [变异系数：4.85%，组内相关系数：0.87]，V [变异系数：6.10%，组内相关系数：0.82]，a [变异系数：10.5%，组内相关系数：0.81]，P [变异系数：3.5%，组内相关系数：0.93]）。F-V关系的强度及其参数的可靠性在以下方面显著更高：（1）CMJ高于SJ；（2）Free负荷类型高于Smith负荷类型；（3）最大值高于F和V变量的平均值。总之，尽管从所有测试跳跃中获得的F-V关系都是线性的且通常高度可靠，但测试F-V关系不太合适的选择可能是通过在自由重量或史密斯机上进行的SJ所获得的F和V平均值数据。在其他测试组合之间存在细微差异。
