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KMID : 1035420190070020165
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Journal of The Korean Society of Integrative Medicine
2019 Volume.7 No. 2 p.165 ~ p.179
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The Effect of Lower Limb Resistance Exercise using a Kinetic Chain on Gait in Stroke Patients
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Oh Yong-Seop
Hur Young-Goo
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Abstract
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Purpose: The purpose of this study is to improve the stroke patient’s gait ability by applying a closed kinetic chain lower limb exercise (the experimental group) or an open kinetic chain lower limb exercise (the control group). The effects of the exercise would then be verified in order to provide grounds for applying more effective exercise methods for stroke patients.
Method : The study subjects were 50 hospitalized hemiplegic patients in R Hospital who met the study’s inclusion criteria and agreed to participate in the study. Two subjects were eliminated due to drop-out and transference to another hospital. Therefore, 48 subjects went through the intervention: 24 in the experimental group and 24 in the control group. Both groups undertook exercise with gradual increases in resistance. One set consisted of 10 repeats of the exercise. The subjects performed three sets of the exercise once a day, 5 times a week, for 6 weeks. Gait changes were measured before and after the intervention by the timed up and go test (TUG), functional gait assessment (FGA), 3-dimensional spatio-temporal gait ability including velocity, cadence, stride length, double limb support, and 3-axes trunk sway angle. The collected data were analyzed using Windows PASW 18.0 at a significance level of α<.05. All variables were confirmed to have a normal distribution by the Kolmogorov-Smirnov test. The Chi-squired test and independent t-test were used to verify the general characteristics of the subjects and the homogeneity of dependent variables. A paired t-test was used to reveal the changes in gait after the intervention within each group. An independent t-test was conducted to compare the differences in dependent variables after the intervention between the groups.
Result : The study results were as follows. 1) TUG and FGA were significantly improved in the experimental group. The control group showed no significant difference. Significant improvement was noted in the experimental group compared to the control group. 2) The spatio-temporal gait variables in the experimental group all showed significant improvement. In the control group, velocity, cadence, and double limb support showed significant improvement, whereas no significant difference was noted in stride length. The experimental group showed significant improvement when compared to the control group. 3) Trunk sway angle showed significant improvement in all three axes in both the experimental and control groups. Both groups also showed significant improvement when compared to each other.
Conclusion : The results of this study indicate that a more positive effect in terms of improvement of the stroke patient’s gait ability will be seen for closed rather than open kinetic chain lower limb resistance exercise.
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KEYWORD
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Kinetic Chain, Lower Limb Resistance Exercise, Stroke
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