Nedeljkovic Aleksandar, Mirkov Dragan M, Markovic Srdjan, Jaric Slobodan
The Research Center, Faculty of Sport and Physical Education, University of Belgrade, Belgrade, Serbia.
J Strength Cond Res. 2009 Aug;23(5):1593-605. doi: 10.1519/JSC.0b013e3181a9ebce.
Among other routinely tested physical abilities, the tests of rapid movement performance and the tests of direct assessment of muscle power have been independently evaluated in complex batteries of physical fitness tests. Based on the scaling effects, we hypothesized that the tests of rapid movement performance assess the same physical ability as the tests of direct assessment of muscle power properly normalized for the effect of body size. Young physically active men (n = 111) were evaluated on 23 physical ability tests based on the assessment of muscle strength, muscle power, and rapid movement performance. When non-normalized data were used, a principle component analysis revealed a structure with overlapping tests from the above-mentioned groups including the indices of body size. However, when the indices of muscle strength and directly assessed muscle power were properly normalized for the effect of body size, the obtained structure was in line with the hypothesis. Most of the tests of both the direct assessment of muscle power and rapid movement performance proved to belong to the same factor, whereas the muscle strength tests and body size measures, respectively, loaded the remaining 2 factors. This result suggests that the rapid movement performance could be employed to assess muscle power and, possibly, the neuromuscular efficiency in general, which could be important for understanding some basic aspects of the design and function of the human locomotor system. An important practical implication of our findings could be that the direct assessment of muscle power (that usually requires expensive equipment and complex data processing procedures) could be skipped from the complex batteries of physical fitness tests and replaced by generally simpler tests of rapid movement performance.
在其他常规测试的身体能力中，快速运动表现测试和肌肉力量直接评估测试已在复杂的体能测试组合中进行了独立评估。基于标度效应，我们假设快速运动表现测试所评估的身体能力与针对身体大小影响进行适当标准化后的肌肉力量直接评估测试相同。对111名身体活跃的年轻男性进行了基于肌肉力量、肌肉力量和快速运动表现评估的23项身体能力测试。当使用未标准化的数据时，主成分分析揭示了一个结构，其中包括上述组别的重叠测试以及身体大小指标。然而，当对肌肉力量指标和直接评估的肌肉力量针对身体大小的影响进行适当标准化后，所得到的结构符合假设。肌肉力量直接评估和快速运动表现的大多数测试都被证明属于同一因素，而肌肉力量测试和身体大小测量分别加载了其余两个因素。这一结果表明，快速运动表现可用于评估肌肉力量，并且可能总体上评估神经肌肉效率，这对于理解人类运动系统的设计和功能的一些基本方面可能很重要。我们研究结果的一个重要实际意义可能是，在复杂的体能测试组合中，可以跳过通常需要昂贵设备和复杂数据处理程序的肌肉力量直接评估，而用通常更简单的快速运动表现测试来替代。
