Faculty of Physical Education and Sport, University of East Sarajevo, 71420 Pale, Bosnia and Herzegovina.
Faculty of Sport and Physical Education, University of Priština-Kosovska Mitrovica, 38218 Leposavić, Serbia.
Int J Environ Res Public Health. 2023 Jan 4;20(2):924. doi: 10.3390/ijerph20020924.
The aim of this study is to investigate the differences in muscle contractile properties measured by the TMG method between top-level football players of different playing positions. The sample consisted of 57 football players from the Serbian Super League, divided into three groups: defenders-DF, midfielders-MF, and forwards-FW. Muscles included in the study were the Rectus Femoris (RF), Vastus Medialis (VM), Vastus Lateralis (VL), Biceps Femoris (BF), and Semitendinosus (ST) of the right (R) and left (L) leg. The TMG parameters used in this study were contraction time (Tc), delay time (Td), relaxation time (Tr), maximal displacement (Dm), and sustain time (Ts). The ANOVA results showed that differences in TMG parameters between top-level football players of different playing positions are small and exist only in the Tr of RF (F = 4.658, = 0.014), BF (F = 4.433, = 0.016), and ST muscle (F = 3.808, = 0.028), and the Tc (F = 3.214, = 0.048) and Td (F = 3.705, = 0.031) of the VM muscle. All differences were detected between DF and FW players, and all differences were in the left (non-dominant) leg. The results obtained in this study indicate that the training and selection process in football, from the aspect of functional and mechanical muscle properties, should be similar for all players, regardless of playing position. It has been shown that TMG has relatively low sensitive strength for detecting differences between football players of different playing positions.
本研究旨在探讨不同场上位置的顶级足球运动员之间，使用 TMG 方法测量的肌肉收缩性能的差异。样本由来自塞尔维亚超级联赛的 57 名足球运动员组成，分为三组：后卫（DF）、中场（MF）和前锋（FW）。研究中包括的肌肉为右腿（R）和左腿（L）的股直肌（RF）、股内侧肌（VM）、股外侧肌（VL）、半腱肌（BF）和半膜肌（ST）。本研究中使用的 TMG 参数包括收缩时间（Tc）、延迟时间（Td）、放松时间（Tr）、最大位移（Dm）和维持时间（Ts）。方差分析结果表明，不同场上位置的顶级足球运动员之间的 TMG 参数差异较小，仅存在于 RF（F = 4.658， = 0.014）、BF（F = 4.433， = 0.016）和 ST 肌肉（F = 3.808， = 0.028）的 Tr，以及 VM 肌肉的 Tc（F = 3.214， = 0.048）和 Td（F = 3.705， = 0.031）。所有差异均在 DF 和 FW 球员之间检测到，且均在左腿（非优势腿）。本研究的结果表明，从功能和机械肌肉特性的角度来看，足球的训练和选材过程对于所有球员都应该是相似的，无论其场上位置如何。研究表明，TMG 对检测不同场上位置的足球运动员之间的差异的敏感性相对较低。
