Coratella Giuseppe, Beato Marco, Schena Federico
Department of Biomedical Sciences for Health, University of Milano, Italy; Department of Neurological, Biomedical and Movement Sciences, University of Verona, Italy.
Faculty of Health and Science, Department of Science and Technology, University of Suffolk, Ipswich, UK.
Hum Mov Sci. 2018 Jun;59:81-87. doi: 10.1016/j.humov.2018.03.016. Epub 2018 Apr 3.
The aim of this study was to investigate the relationship between in quadriceps and hamstrings inter-limb strength asymmetry and change of direction, sprinting and jumping abilities in U21 elite soccer players. Twenty-seven soccer players volunteered for this study. Isokinetic quadriceps and hamstrings peak torque was measured at high and low angular velocities, both in concentric and eccentric modalities. Performance in agility T-test, 20 + 20 m shuttle-test, 10 m and 30 m sprint, squat jump (SJ) and counter-movement jump (CMJ), were measured. Overall, time on agility T-test and 20 + 20 m shuttle-test was moderately and positively correlated with the quadriceps and hamstrings inter-limb eccentric peak torque asymmetry, both at high and low angular velocities. In addition, time on 10 m and 30 m sprints was moderately and positively correlated with the hamstrings inter-limb high-velocity concentric peak torque asymmetry. SJ and CMJ showed trivial to small correlations with hamstrings and quadriceps inter-limb peak torque asymmetry. The present results provide further information insight the role of lower-limb muscle strength balance in COD, sprinting and jumping performance.
本研究的目的是调查21岁以下精英足球运动员股四头肌和腘绳肌肢体间力量不对称与变向、短跑和跳跃能力之间的关系。27名足球运动员自愿参与本研究。在高、低角速度下，以向心和离心方式测量股四头肌和腘绳肌的等速峰值扭矩。测量了敏捷T测试、20 + 20米穿梭测试、10米和30米短跑、深蹲跳（SJ）和反向移动跳（CMJ）的表现。总体而言，敏捷T测试和20 + 20米穿梭测试的时间与高、低角速度下股四头肌和腘绳肌肢体间离心峰值扭矩不对称呈中度正相关。此外，10米和30米短跑的时间与腘绳肌肢体间高速向心峰值扭矩不对称呈中度正相关。SJ和CMJ与腘绳肌和股四头肌肢体间峰值扭矩不对称的相关性很小。目前的结果为深入了解下肢肌肉力量平衡在变向、短跑和跳跃表现中的作用提供了进一步的信息。
