■本研究旨在调查a)利用反运动跳跃(CMJ)的双侧表现之间的关联,深蹲跳跃(SJ),速度和单边CMJ,具有60°/s和180°/s的角速度和张力描记术(TMG)参数的膝关节伸展和屈曲中的等速峰值扭矩;b)来自单侧测试的不对称性是否与双侧CMJ相关,SJ和速度在精英女足球运动员中。
■35名精英女子足球运动员(平均年龄:20±5岁)完成CMJ,SJ,速度,等速肌力和TMG测试。
■与非优势腿相比,优势腿在膝关节屈曲(7.4%)和膝关节伸展(5.6%)等速任务中表现出更大的峰值扭矩输出,以及m。股内侧收缩时间(7.6%),和足球专用敏捷性测试(4.1%)。相反,非优势腿180°/s时的腿筋与股四头肌峰值扭矩比(8.5%)明显更大。CMJ之间的关联,SJ和速度表现为阳性,范围从弱(r=0.350)到高(r=0.710)。对于速度和TMG派生变量,相关性为负,从弱(对于股内侧肌收缩时间,r=-0.345,p=0.042)到中度(对于股二头肌收缩时间,r=-0.530,p=0.001)。此外,双侧CMJ和SJ均与TMG衍生变量呈负相关,范围从弱(对于股外侧肌收缩时间,r=-0.350,p=0.039)到中度(对于股直肌收缩时间,r=-0.537,p=0.003)。
■总体意义重大,尽管不一致,获得的各种表现得分之间的相关性凸显了对女足球运动员采取多方面和彻底的诊断策略的必要性。
UNASSIGNED: The present study aimed to investigate a) the associations between bilateral performance utilizing countermovement jump (CMJ), squat jump (SJ), speed and unilateral CMJ, isokinetic peak torque in knee extension and flexion with angular velocities of 60°/s and 180°/s and tensiomyography (TMG) parameters; b) whether the asymmetries derived from unilateral tests are associated with bilateral CMJ, SJ and speed in elite female soccer players.
UNASSIGNED: Thirty-five elite female soccer players (average age: 20 ± 5 years) completed CMJ, SJ, speed, isokinetic muscle strength and TMG tests.
UNASSIGNED: Compared to the non-dominant leg, the dominant leg demonstrated greater peak torque output in both knee flexion (7.4%) and knee extension (5.6%) isokinetic tasks, as well as m. vastus medialis contraction time (7.6%), and soccer-specific agility test (4.1%). Conversely, the hamstring to quadriceps peak torque ratio at 180°/s (8.5%) was significantly greater in the non-dominant leg. The associations between CMJ, SJ and speed performance were positive and ranged from weak (r = 0.350) to high (r = 0.710). For speed and TMG-derived variables, correlations were negative and ranged from weak (r = -0.345, p = 0.042, for vastus medialis contraction time) to moderate (r = -0.530, p = 0.001, for biceps femoris contraction time). Furthermore, both bilateral CMJ and SJ negatively correlated with TMG-derived variables, ranging from weak (r = -0.350, p = 0.039, for vastus lateralis contraction time) to moderate (r = -0.537, p = 0.003, for rectus femoris contraction time).
UNASSIGNED: The overall significant, albeit inconsistent, correlations between the diverse performance scores obtained highlight the necessity for a multifaceted and thorough diagnostic strategy in female soccer players.