Faculty of Sport and Physical Education, University of Priština-Kosovska Mitrovica, Leposavić, Serbia.
Faculty of Sport and Physical Education, University of Belgrade, Belgrade, Serbia.
J Strength Cond Res. 2022 Jun 1;36(6):1532-1539. doi: 10.1519/JSC.0000000000003662. Epub 2020 Jun 5.
Toskić, LD, Dopsaj, MJ, Marković, MR, Toskić, DR, Ignjatović, AM. Mechanical and contractile properties of knee joint muscles measured by the method of tensiomyography in differently trained men and women. J Strength Cond Res 36(6): 1532-1539, 2022-The aim of this study was to investigate the differences in mechanical and contractile properties of knee joint flexor and extensor muscles between differently trained men and women, using tensiomyography (TMG). The sample consisted of 159 subjects (84 men and 75 women), who were assigned to one of 5 groups according to the following levels and types of their physical activity: physically inactive, physically active nonathletes, strength and power athletes, endurance athletes, and team sports athletes. Measurements were performed on the following knee flexor and extensor muscles of the dominant leg: rectus femoris, vastus medialis, vastus lateralis, biceps femoris, and semitendinosus. The results showed significant differences in contraction time-Tc (F = 1.911, p = 0.010) and delay time-Td (F = 1.989, p = 0.007) parameters between differently trained men and women, whereas in other TMG parameters, there were no differences between groups. It is indicated that physical activities characteristic of strength and power sports (combat sports and sprint disciplines) could lead to an increased speed of twitch force generation and fast twitch muscle fibers, and that almost any regular, systematic, and planned physical activity leads to increased muscle responsiveness. Obtained results also indicated that TMG parameters do not have enough specific discriminatory power for detecting differences between differently trained young adults.
托希奇，LD，多帕萨伊，MJ，马尔科维奇，MR，托希奇，DR，伊格纳季耶维奇，AM。应用张力测量法测量不同训练水平男性和女性膝关节肌肉的力学和收缩性能。J Strength Cond Res 36(6)：1532-1539，2022-本研究旨在应用张力测量法（TMG）研究不同训练水平男性和女性膝关节屈肌和伸肌的力学和收缩性能差异。样本由 159 名受试者（84 名男性和 75 名女性）组成，根据以下身体活动水平和类型将其分为 5 组：非活跃、非运动的活跃者、力量和爆发力运动员、耐力运动员和团队运动运动员。在优势腿的以下膝关节屈肌和伸肌上进行测量：股直肌、股内侧肌、股外侧肌、股二头肌和半腱肌。结果表明，不同训练水平的男性和女性在收缩时间-Tc（F = 1.911，p = 0.010）和延迟时间-Td（F = 1.989，p = 0.007）参数方面存在显著差异，而在其他 TMG 参数方面，组间无差异。这表明，力量和爆发力运动（格斗运动和短跑项目）的身体活动特征可能导致肌肉产生快速的肌肉收缩力和快速收缩肌纤维，而几乎任何有规律、系统和有计划的身体活动都能增加肌肉的反应性。研究结果还表明，TMG 参数对于检测不同训练水平的年轻人之间的差异没有足够的特异性区分能力。
