Clinical efficacy of isokinetic muscle strength training at different angular velocities for patients with knee hyperextension after stroke
10.3969/j.issn.1001-1242.2025.11.011
- VernacularTitle:不同角速度下等速肌力训练治疗脑卒中膝过伸的临床观察
- Author:
Liangqing ZHANG
1
;
Youxiang SHENG
1
;
Chunzhen LI
1
Author Information
1. 华中科技大学协和深圳医院,广东省 深圳市,518052
- Publication Type:Journal Article
- Keywords:
isokinetic muscle strength training;
knee hyperextension;
stroke;
angular velocity
- From:
Chinese Journal of Rehabilitation Medicine
2025;40(11):1679-1685
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe the effects of isokinetic muscle strength training at different angular velocities on knee hyperextension in patients after stroke,and to find out better angular velocity.Method:Eighty patients with knee hyperextension after stroke were randomly divided into four groups:the control group,30°/s group,60°/s group and 90°/s group,20 cases in each group.The control group received only routine rehabilitation treatment,and the other three groups received an additional 30°/s,60°/s or 90°/s isokinetic knee flexion/extension training besides the routine treatment,respectively.Before and 3 weeks after treatment,peak torque(PT),peak torque to body weight ratio(PT/BW),average electromyographic(AEMG)and integrated electromyographic(iEMG)of the extensor and flexor knee muscles,the effective rate of knee hyperextension and lower limb Fugl-Meyer motor function score(FMA)were measured.Result:Before treatment,there was no significant difference among the four groups(P>0.05).After 3 weeks treatment,PT,PT/BW,AEMG,iEMG of the extensor and flexor knee muscles and FMA in four groups were significantly improved as compared with those before treatment(P<0.01).Moreover,the improvement of evaluation results in the 30°/s group,60°/s group and 90°/s group were higher than those in the control group(P<0.05),and those in the 30°/s group and 60°/s group were higher than those in the 90°/s group(P<0.05).However,no significant difference was found between 30°/s group and 60°/s group(P>0.05).In addition,the effective rate of knee hyperextension in the 30°/s group or 60°/s group(85%)was significantly higher than that in the control group(40%)(P<0.05),but there was no significant difference between the 90°/s group and the control group(P>0.05).Conclusion:Isokinetic muscle strength training at different angular velocities can increase the muscle strength of knee flexors and extensors,improve the control ability of knee joint,and better improve knee hyperexten-sion in patients after stroke.The lower angular velocity(≤60°/s)has a better effect.
