Kim Mi-Kyoung, Kong Byung-Su, Yoo Kyung-Tae
Department of Physical Therapy, Namseoul University: 21 Maeju-ri, Sunghwan-eup, Seobuk-gu, Chonan-si 331-707, Republic of Korea.
J Phys Ther Sci. 2017 Nov;29(11):1903-1906. doi: 10.1589/jpts.29.1903. Epub 2017 Nov 24.
[Purpose] The purpose of this study was to analyze the effects of open and closed chain exercise on the muscle strength and muscle activity of the ankle joint. [Subjects and Methods] Twenty women in their 20s were randomly assigned to two groups: the open kinetic-chain group and the closed kinetic-chain group. Each group performed 5 sets 3 times per week for 4 weeks. Exercise intensity was increased once after two weeks. The muscle activity of the tibialis anterior, gastrocnemius, tibialis posterior, and peroneus longus muscles were measured. The collected data were analyzed with two-way repeated measures ANOVA. [Results] In the results for muscle strength, both groups showed significant differences in dorsiflexion and plantar flexion between the pre-test and post-test. In the results for muscle activity, no significant differences were noted for either group. [Conclusion] Open and closed kinetic-chain exercises can help to improve muscle strength.
[目的]本研究旨在分析开链运动和闭链运动对踝关节肌肉力量和肌肉活动的影响。[对象与方法]20名20多岁的女性被随机分为两组：开链运动组和闭链运动组。每组每周进行3次，每次5组，共4周。两周后运动强度增加一次。测量胫骨前肌、腓肠肌、胫骨后肌和腓骨长肌的肌肉活动。收集的数据采用双向重复测量方差分析进行分析。[结果]在肌肉力量结果方面，两组在测试前和测试后的背屈和跖屈方面均显示出显著差异。在肌肉活动结果方面，两组均未观察到显著差异。[结论]开链运动和闭链运动有助于提高肌肉力量。
