A study on correlation between the isometric and isokinetic concentric muscle strength of trunk flexors and extensors
- VernacularTitle:躯干屈伸肌等长与等速向心收缩肌力测试的相关研究
- Author:
Jie HUANG
;
Peng CHENG
;
Haitao LANG
;
Xia BI
;
Jie ZHANG
- Publication Type:Journal Article
- Keywords:
Trunk muscle;
Muscle strength test;
Isometric concentric contraction;
Isokinetic concentric contraction
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2003;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the correlation between the strength of trunk flexors and extensors obtained by isometric and isokinetic concentric tests. Methods The strength of trunk extensors and flexors were measured by isometric and isokinetic concentric tests during trunk flexion and extension in 50 healthy subjects, and the peak torque of flexion and extension (FPT and EPT) and the ratios of FPT/EPT were analyzed with correlation and regression analysis. Results The FPT and EPT of trunk flexors and extensors were positively correlated (r_F=0.827,P0.05, respectively), the regression equations of FPT and EPT were y^=8.158+1.097X and y^=-12.375+0.781X, respectively. Conclusion The isometric test of the trunk extensors and flexors could assess accurately the changes of the trunk muscle strength without aggravating pain and diseases. It is more reasonable to evaluate the stability of trunk with the FPT/EPT ratio at neutral position.
