Isokinetic muscle strength of knee for patients with chondromalacia patellae
10.3969/j.issn.1006-9771.2022.04.002
- VernacularTitle:髌骨软化症患者膝关节等速肌力测试
- Author:
Jiaman ZHONG
1
;
Jingjie HUANG
1
;
Fuyifei LIU
2
;
Shiting ZHAO
2
;
Wenxia XU
2
;
Junxing YANG
2
Author Information
1. 1. The Sixth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong 518000, China
2. 2. Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen, Guangdong 518000, China
- Publication Type:Journal Article
- Keywords:
chondromalacia patellae, isokinetic muscle strength, peak torque, hamstring/quadriceps, hamstring, quadriceps femoris
- From:
Chinese Journal of Rehabilitation Theory and Practice
2022;28(4):379-383
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the characteristics of the muscle strength around the knee joint of chondromalacia patellae patients, and to explore the difference with normal people.Methods In March, 2021, 70 knee-onset chondromalacia patellae patients (experimental group) and 35 normal people (control group) were measured isokinetic muscle strength of flexion and extension of knee in angular velocities of 60°/s and 180°/s.Results At 60°/s and 180°/s, the peak torque, the peak torque-to-weight ratio and the total work of the flexor and extensor muscles on the affected side in the experimental group were lower than that of the control group (U > 1097.0, P<0.001). The peak torque, the peak torque-to-weight ratio and the total work of the flexor and extensor muscles at 60°/s and extensor muscles at 180°/s were lower on the affected side than on the healthy side in the experimental group (|Z| > 2.121, P<0.05). The peak torque ratios at 60°/s and 180°/s were more in the affected knees than in the healthy knees of experimental group and in the control group (U > 1810.0, |Z| >3.691, P<0.01).Conclusion The explosive force and endurance of the knee flexor and extensor has weakened in patients with chondromalacia patellae, and there is imbalance in knee joint muscle strength.
