Force-velocity property of leg muscles in individuals of different level of physical fitness.
Force-velocity property of leg muscles in individuals of different level of physical fitness.
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DOI：
10.1080/14763141.2016.1159724
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发表时间：
2016-06
影响因子：
2.2
通讯作者：
Jaric S
中科院分区：
文献类型：
--
作者：
Cuk I;Mirkov D;Nedeljkovic A;Kukolj M;Ugarkovic D;Jaric S
本研究探讨了通过垂直跳跃负荷获得的线性力-速度（F-V）关系测试肌肉力学特性的方法。具体来说，我们假设，F-V关系参数描绘的力量，功率和速度的测试肌肉将不同的个体之间的不同的身体素质。力量训练，体力活动，久坐不动的男性参与者（N=10+10+10;年龄20-29岁）进行了测试，最大的反向运动和蹲跳的外部负载的操作提供了一系列的F和V数据。所观察到的受试腿部肌肉的F-V关系近似为线性，并且主要是强的（中位相关系数范围为0.77至0.92;所有p < 0.05），与受试组或跳跃类型无关。最大功率显示更高的价值观的力量训练比在身体活动和久坐不动的参与者。这种差异源于F截距的差异，而不是V截距的差异。我们的结论是，所观察到的参数可以是足够敏感的检测不同的身体素质和各种跳跃类型的个人之间的差异。目前的研究结果支持使用加载垂直跳跃，并可能，其他最大性能的多关节运动的机械性能的评估活动肌肉。
The present study explored the method of testing muscle mechanical properties through the linear force-velocity (F–V) relationships obtained from loaded vertical jumps. Specifically, we hypothesised that the F-V relationship parameters depicting the force, power, and velocity of the tested muscles will differ among individuals of different physical fitness. Strength trained, physically active, and sedentary male participants (N=10+10+10; age 20–29 years) were tested on maximum countermovement and squat jumps where manipulation of external loads provided a range of F and V data. The observed F–V relationships of the tested leg muscles were approximately linear and mainly strong (median correlation coefficients ranged from 0.77 to 0.92; all p < 0.05), independently of either the tested group or the jump type. The maximum power revealed higher values in the strength trained than in the physically active and sedentary participants. This difference originated from the differences in F-intercepts, rather than from the V-intercepts. We conclude that the observed parameters could be sensitive enough to detect the differences among both the individuals of different physical fitness and various jump types. The present findings support using loaded vertical jumps and, possibly, other maximum performance multi-joint movements for the assessment of mechanical properties of active muscles.