Changes in knee flexion and extension muscle strength before and after home-based rehabilitation training in patients with knee osteoarthritis
Objective:To evaluate the changes in knee flexion and extension muscle strength before and after home-based rehabilitation training in patients with knee osteoarthritis.Methods:This prospective study enrolled 50 patients with unilateral knee osteoarthritis admitted between May 2020 and October 2021.Patients underwent 3 months of home-based rehabilitation training(including health guidance and functional training).Before and after 3 months of training,the Biodex isokinetic testing system was used to assess the bilateral knee flexion and extension muscle strength at slow speed(60°/s),medium speed(120°/s),and 90° isometric modes,respectively;peak torque(PT),visual analog scale(VAS),and Western Ontario and McMaster University osteoarthritis index(WOMAC)scores were recorded and compared.Results:Before training,knee flexion and extension muscle strength at 60°/s,120°/s,and 90° isometric was significantly weaker compared to the healthy side(P＜0.05).After 3 months of training,all the muscle strength showed significant improvement(P＜0.05),except for the 60°/s isokinetic knee extension muscle strength on the healthy side,which showed no significant change(P=0.183).Post-training,knee extension muscle strength at 60°/s,120°/s,and 90° isometric on the affected side remained weaker compared to the healthy side(all P＜0.01),but no significant difference was observed in knee flexion muscle strength between the two sides(all P＞0.05).Both VAS scores for pain and WOMAC scores showed significant improvement after 3 months of training(all P＜0.01).Conclusions:Three months of home-based rehabilitation training significantly enhanced knee flexion and extension muscle strength in patients with knee osteoarthritis.Post-rehabilitation,the difference in flexion muscle strength between the affected and healthy sides was not significant,while the difference in extension muscle strength remained.Additionally,significant improvements were observed in patients'pain and knee joint function.
Knee JointOsteoarthritisKnee Flexion Muscle StrengthKnee Extension Muscle StrengthHome Rehabilitation Training
万方数据
维普
