J Korean Phys Ther.  2021 Feb;33(1):34-39. 10.18857/jkpt.2021.33.1.34.

Effects of Repetitive Sit to Stand Training on the Knee Extensor Strength and Walking Ability in Subject with Total Knee Replacement Patients

• Park J

• KMID: 2519949
• DOI: http://doi.org/10.18857/jkpt.2021.33.1.34

Abstract

Purpose
The purpose of this study was to verify the effectiveness of repetitive sit to stand training to improve knee extensor strength and walking ability of total knee replacement patients.
Methods
In this study, 12 patients with total knee replacement patients were recruited from a rehabilitation hospital. They were divided into two groups: a repetitive sit to stand group (n=6) and a control group (n=6). They all received 30 minutes of continuous passive motion (CPM). After that, the repetitive sit to stand group performed repetitive sit to stand training, and the control group performed resistance exercise for 15 minutes five times a week for 2 weeks. After 2 weeks of training, knee extensor strength and spatiotemporal gait parameters were measured. Knee extensor strength was measured by Biodex system 3, walking ability was measured by Biodex gait trainer 2. Paired t test was performed to verify the difference between before and after intervention within the group, and analysis of covariance was used to verify the differences between the two groups.
Results
After the training periods, the repetitive sit to stand group showed a significant improvement in knee extensor muscle strength, walking speed, step length of the operated side, and step length of the non-operated side (p<0.05).
Conclusion
The results of this study showed that repetitive sit to stand training was more effective in improving knee extensor muscle strength and walking ability. Therefore, to strengthen knee extensor muscles and improve the walking ability of total knee replacement patients, it is necessary to consider repetitive sit to stand training.

Keyword

Gait; Repetitive sit to stand; Strength; Total knee replacement