Department Physical Education and Sports, Faculty of Sport Science, University of Granada, 18011 Granada, Spain.
Department of Health, University of Los Lagos, Puerto Montt 5500000, Chile.
Int J Environ Res Public Health. 2023 Jan 11;20(2):1291. doi: 10.3390/ijerph20021291.
Soccer is the most widely practiced sport in the world, demanding high-speed activities such as jumps, sprints and changes of direction. Therefore, having optimal levels of muscle strength improves performance and reduces the injury rate.
The objectives of our study were (i) to determine the dynamometric profile of hip muscle strength in young soccer players by position, evaluated at different isokinetic speeds, (ii) to describe the conventional and functional unilateral muscle strength ratios, (iii) to analyze the bilateral balance.
Thirty-seven male soccer players (age 17.02 ± 0.92 years) participated in the study. Strength assessment was performed with a functional electromechanical dynamometer, and concentric and eccentric strength of abductors, adductors, extensors and hip flexors were measured bilaterally at 0.5 m/s and 1 m/s.
For eccentric right hip abduction at 0.5 m/s, defenders are significantly stronger than midfielders ( = 0.013) and stronger than forwards ( = 0.140). For eccentric right hip adduction at 0.5 m/s, defenders are significantly stronger than midfielders ( = 0.005) and stronger than forwards ( = 0.253), as for eccentric right hip adduction at 1 m/s, defenders are significantly stronger than midfielders ( = 0.014) and stronger than forwards ( = 0.084). There is a significant effect for the conventional strength ratio of left abduction/adduction at 1 m/s. The conventional strength ratio of forwards is significantly higher than that of defenders ( = 0.045) and higher than that of midfielders ( = 0.152).
Concentric and eccentric hip strength values differ according to playing position.
足球是世界上最广泛开展的运动，需要进行高速活动，如跳跃、冲刺和变向。因此，肌肉力量达到最佳水平可以提高表现并降低受伤率。
我们的研究目的是（i）通过位置确定年轻足球运动员的髋关节肌肉力量的测力评估，在不同等速速度下进行评估，（ii）描述传统和功能性的单侧肌肉力量比值，（iii）分析双侧平衡。
37 名男性足球运动员（年龄 17.02 ± 0.92 岁）参加了这项研究。使用功能电动测力计进行力量评估，对双侧外展肌、内收肌、伸肌和髋关节屈肌进行测试，测试时的角速度分别为 0.5 m/s 和 1 m/s。
在 0.5 m/s 的右侧髋关节外展的离心运动中，防守者的力量明显强于中场球员（ = 0.013）和前锋（ = 0.140）。在 0.5 m/s 的右侧髋关节内收的离心运动中，防守者的力量明显强于中场球员（ = 0.005）和前锋（ = 0.253），而在 1 m/s 的右侧髋关节内收的离心运动中，防守者的力量明显强于中场球员（ = 0.014）和前锋（ = 0.084）。在 1 m/s 的左侧外展/内收的传统力量比中存在显著的影响。前锋的传统力量比明显高于防守者（ = 0.045）和中场球员（ = 0.152）。
根据比赛位置的不同，髋关节的等长和等速力量值会有所不同。
