University of Belgrade, Faculty of Sport and Physical Education, Belgrade, Serbia. ; University of Belgrade, Institute for Medical Research, Belgrade, Serbia.
J Hum Kinet. 2012 Dec;35:5-13. doi: 10.2478/v10078-012-0074-9. Epub 2012 Dec 30.
The novel test based on isometric alternating consecutive maximal contractions performed by two antagonistic muscles has been recently proposed as a test of muscle function in healthy subjects. The aim of this study was to evaluate reliability and sensitivity of a novel test as a test of knee muscles function in athletes recovering from anterior cruciate ligament reconstruction. Fifteen male athletes with recent ligament reconstruction (4.0 ± 0.1 months following the surgery) and 15 sport and physical education students participated in the study. Peak torques of the quadriceps and hamstring muscles assessed both through the alternating consecutive maximal contractions and standard isokinetic test performed at 60 º/s and 180 º/s served for calculation of the hamstrings-to-quadriceps ratio and the bilateral difference in strength. When applied on individuals recovering from anterior cruciate ligament reconstruction, the novel test revealed a high within-day reliability and sensitivity for detecting imbalances both between antagonistic and between contralateral muscles. The present findings suggest that alternating consecutive maximal contractions could be used as a test of muscle function that is either complementary or alternative to the isokinetic test, particularly in the laboratories where the isokinetic devices are not available. Potential advantages of the novel test could be both a brief testing procedure and a possibility to conduct it using relatively inexpensive devices such as custom made kits containing a single one-axis force transducer.
最近提出了一种基于等长交替连续最大收缩的新型测试方法，用于测试健康受试者的肌肉功能。本研究旨在评估该新型测试作为一种测试前十字韧带重建后运动员膝关节肌肉功能的方法的可靠性和敏感性。15 名男性运动员参与了研究，他们最近进行了韧带重建（手术后 4.0±0.1 个月），15 名体育和体育教育学生也参与了研究。通过交替连续最大收缩和在 60 º/s 和 180 º/s 下进行的标准等速测试评估股四头肌和腘绳肌的峰值扭矩，用于计算腘绳肌/股四头肌比值和力量的双侧差异。当应用于前十字韧带重建后的个体时，新型测试显示出高日内可靠性和敏感性，可用于检测拮抗肌之间和对侧肌肉之间的不平衡。本研究结果表明，交替连续最大收缩可作为一种肌肉功能测试方法，既可以补充等速测试，也可以替代等速测试，特别是在没有等速设备的实验室中。新型测试的潜在优势可能是测试过程简短，并且可以使用相对便宜的设备进行测试，例如包含单个单轴力传感器的定制套件。
