J Korean Phys Ther.  2024 Feb;36(1):27-32. 10.18857/jkpt.2024.36.1.27.

Effects of Resistance Exercise with Pressure Biofeedback Unit on the Gait Ability and Knee Joint Function in Subject with Total Knee Replacement Patients

• Park J

• KMID: 2563073
• DOI: http://doi.org/10.18857/jkpt.2024.36.1.27

Abstract

Purpose
This study was conducted to verify the effect of applying a pressure biofeedback unit on walking ability and knee joint function while performing knee joint extensor strengthening exercises using resistance exercise equipment in total knee replacement (TKR) patients.
Methods
This study was conducted on twelve patients receiving rehabilitation treatment after being admitted to a rehabilitation hospital post-TKR. Of these, six were allocated to a feedback group with a pressure biofeedback unit, and the other 6 were allocated to a control group without a pressure biofeedback unit. The subjects performed an exercise program for 45 minutes per session, five times a week, for two weeks. Walking ability and knee joint function were evaluated and analyzed before and after exercise.
Results
The feedback group showed significantly better improvements in walking speed, gait cycle, step length on the non-operation side, time on the foot on the operation side, K-WOMAC stiffness, and K-WOMAC function than the control group (p< 0.05).
Conclusion
When strengthening the knee joint extensor muscles using resistance exercise equipment in TKR patients, the provision of a pressure biofeedback unit was found to improve walking ability and knee joint function by inducing concentric-eccentric contraction of the knee joint extensor muscles. Therefore, the study shows that exercise based on the provision of a pressure biofeedback unit should be considered when strengthening knee joint extensor muscles to improve the walking ability and knee joint function of TKR patients in clinical practice.

Keyword

Gait; K-WOMAC; Pressure biofeedback funit,; Resistance training; Total knee replacement