Kwon Yoo Jung, Park Soo Jin, Jefferson John, Kim Kyoung
Department of Physical Therapy, Daegu University.
J Phys Ther Sci. 2013 Jun;25(6):671-4. doi: 10.1589/jpts.25.671. Epub 2013 Jul 23.
[Purpose] This study investigated the effect of open and closed kinetic chain exercise on the dynamic balance ability of healthy young adults. [Subjects] Thirty-three healthy adults participated in this study. [Methods] Subjects were randomly assigned to either an open kinetic chain exercise group (n=17) or a closed kinetic chain exercise group (n=16). Both the open kinetic chain and closed kinetic chain exercise groups performed 3 sets of exercises 3 times per week for 6 weeks. Dynamic balance was measured at the beginning and end of the 6-week training period, including anterior-posterior, medial-lateral, and total displacement of the center of pressure. [Results] Both exercise groups showed improvement in balance parameters but the improvement was only statistically significant in the closed kinetic chain group. [Conclusion] Closed kinetic chain exercise appears to be more effective at improving of dynamic balance ability than open kinetic chain exercise within a 6-week training period.
[目的] 本研究调查了开链运动和闭链运动对健康年轻成年人动态平衡能力的影响。[对象] 33名健康成年人参与了本研究。[方法] 受试者被随机分为开链运动组（n = 17）或闭链运动组（n = 16）。开链运动组和闭链运动组均每周进行3次练习，每次3组，共进行6周。在6周训练期开始和结束时测量动态平衡，包括压力中心的前后、内外侧和总位移。[结果] 两个运动组的平衡参数均有改善，但仅闭链运动组的改善具有统计学意义。[结论] 在6周的训练期内，闭链运动在改善动态平衡能力方面似乎比开链运动更有效。
