Efficacy of isokinetic exercise therapy on knee osteoarthritis based on gait analysis
Objective It is to investigate the clinical efficacy and biomechanical mechanism of isokinetic exercise in the treatment of patients with knee osteoarthritis,and to provide a new theoretical evidence for the clinical application of exer-cise therapy for knee osteoarthritis.Methods Fifty-nine patients(72 knees)with knee osteoarthritis treated in the outpa-tient and inpatient departments of the Department of Joint Orthopedics of the Third Affiliated Hospital of Guangzhou Univer-sity of Chinese Medicine from January 2023 to January 2024 were selected and randomly divided into isometric group and control group.The control group was given basic treatment+super laser pain treatment,and the isometric group was given basic treatment+isometric exercise,and both groups were treated for 4 weeks.The knee pain VAS score,knee function WOMAC score and JOA score of the two groups before and after treatment were compared,and the gait parameters(walking speed,step frequency,step length,touchdown time,hip mobility,knee mobility)and isokinetic plyometrics parameters(average peak moment,peak moment/body weight,ratio of peak moments of the active and antagonist muscles,maximal a-mount of work,average power,and total work)of patients in the two groups were recorded before and after treatment.Re-sults After treatment,the VAS scores and WOMAC scores of the patients in the two groups were significantly decreased(all P<0.05),while the JOA scores were significantly increased(both P<0.05),and the WOMAC score of the isometric group was significantly lower than that of the control group(P<0.05).After treatment,the walking speed,step frequen-cy,step length,touchdown time,hip mobility,knee mobility group of the patients in the two groups were significant in-creased,and the improvements of these indexes in the isometric group were significantly better than those in the control group,the differences were all statistically significant(all P<0.05).The average peak moment,peak moment/body weight,ratio of peak moments of the active and antagonist muscles,maximal amount of work,average power,and total work of the patients in the two groups were significantly improved compared with before treatment(all P<0.05),of which the peak moment/body weight of the flexor muscle group at 180°/s exercise speed of the isometric group was significantly higher than that of the control group(P<0.05),and the average peak moment of the extensor group at 60°/s exercise speed,and the ratio of the peak moment of the active and antagonist muscles of the extensor group at 60°/s and 180°/s ex-ercise speeds were significantly lower than those of the control group(all P<0.05).Conclusion Isokinetic exercise can improve gait by increasing stride length,stride frequency and speed,and increasing knee joint mobility,and can effectively improve patients'muscle strength and enhance joint stability.
万方数据
维普
