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KMID : 0357220110230040029
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Journal of Korean Society Physical Therapy
2011 Volume.23 No. 4 p.29 ~ p.36
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The Effects of Sensorimotor Training on Balance and Muscle Activation During Gait in Older Adults
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Jeong Tae-Gyeong
Park Jeong-Seo
Choi Jong-Duk
Lee Ji-Yeun
Kim Jin-Sang
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Abstract
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Purpose: The purpose of this study was to evaluate the effect of 6-week sensorimotoor training on balance ability and lower limb muscle activation during gait in older adults.
Methods: Twenty-four community-dwelling older adults between 65 and 90 years of age participated in this study. In the older adults of the experimental group (n=12), the sensorimotor training program was performed bare feet. General exercise was performed in the control group (n=12). Then, both groups exercised three times a week for forty minutes over a 6-week period. Balance ability was evaluated by One leg stand (OLS) test for determining the static balance and Timed Up & Go (TUG) test for determining the dynamic balance. In addition, muscle activation of the dominant lower limb tibialis anterior and gastrocnemius medialis muscles were measured by surface EMG to evaluate muscle activation during gait.
Results: A significant improvement was seen in the one leg standing (OLS) time after exercise in both the sensorimotor training (SMT) group and general exercise (GE) group (p<0.05) and the change in the SMT group was greater than that in the GE group (p<0.05). A significant reduction was seen in the Timed Up & Go (TUG) test time after exercise in both the SMT group and GE group (p<0.05). Also, a significant increase was seen in muscle activation of tibialis anterior muscle after exercise in the SMT group (p<0.05), but no such significant increase was seen in the GE group (p>0.05).
Conclusion: These results suggest that sensorimotor training improves the balance in older adults and has a more positive effect on muscular strength and gait. Sensorimotor training provided a variance of training environment and COG exercise of the body is thought to be a more effective exercise program that improves balance and gait ability in older adults.
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KEYWORD
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Balance, Sensorimotor training, Gait
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