The relationship between open and closed kinetic chain strength of the lower limb and jumping performance

被引:98
作者
Blackburn, JR [1 ]
Morrissey, MC
机构
[1] Middlesex Hosp, Camden & Islington NHS Trust, London, England
[2] Univ E London, Human Mot & Motor Performance Lab, Dept Hlth Sci, London E15 4LZ, England
关键词
kinetic chain; jumping; muscle strength;
D O I
10.2519/jospt.1998.27.6.430
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
Closed kinetic chain (CKC) exercise has become popular in rehabilitation partly due to the belief that it is more closely related to function than open kinetic chain (OKC) resistance. This study's purpose was to investigate the relationship between OKC and CKC strength of the lower limb extensors and functional performance. Twenty uninjured female subjects performed isotonic strength tests for the knee extensors in OKC and for the hip, knee, and ankle extensors in the squat exercise (CKC). Vertical and standing long jump performance was assessed using an optoelectric motion analysis system. Pearson product-moment correlation analysis showed that CKC strength scores were correlated with vertical jump performance (r = 0.722, p = 0.002) and standing long jump performance (r = 0.650, p = 0.005). Open kinetic chain strength demonstrated minimal correlation with vertical jump (r = 0.097) and standing long jump performance (r = 0.070). We conclude that lower limb extensor CKC muscle strength is more highly related to jumping performance than knee extensor OKC strength, but further research is needed to assess possible differences in training effectiveness for these two regimes.
引用
收藏
页码:430 / 435
页数:6
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