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KMID : 0357220150270050345
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Journal of Korean Society Physical Therapy
2015 Volume.27 No. 5 p.345 ~ p.350
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Effects of Ankle Joint Position during Closed Kinetic Chain Exercise on Strength and Balance in Chronic Stroke
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Kim Ye-Eun
Bang Dae-Hyouk
Shin Won-Seob
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Abstract
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Purpose: This study was conducted to determine the effects of ankle joint position during closed kinetic chain (CKC) exercise on knee extensor strength and balance in patients with chronic stroke.
Methods: Sixteen patients with chronic stroke participated in the study. Participants were randomly assigned to two groups: 15° ankle joint plantar flexion group (n=8) and ankle joint neutral group (n=8) during CKC exercise. All participants underwent conventional physical therapy for 30 minutes. In addition, the experimental group (15° ankle joint plantar flexion group) and control group (ankle joint neutral group) participated in a 20-minute CKC exercise program. In both groups exercise was performed three times a week for four weeks. Outcomes including knee extensor strength and balance ability (Five times sit-to-stand test, Timed up and go test, and Balancia) were measured before and after exercise.
Results: Significant differences in knee extensor strength and balance ability were observed between pre- and post-exercise in all groups (p<0.05). The improvement of knee extensor strength and dynamic balance was significantly higher in the experimental group than in the control group (p<0.05).
Conclusion: These findings demonstrated that 15° ankle joint plantar flexion during closed kinetic chain exercise is effective in improvement of knee extensor strength and dynamic balance in patients with chronic stroke.
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KEYWORD
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Ankle joint, Closed kinetic chain, Stroke, Strength, Balance
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