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KMID : 1151220230290030001
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Journal of Korean Academy of Orthopedic Manual Therapy
2023 Volume.29 No. 3 p.1 ~ p.11
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The Effect of Squat Training on an Unstable Support Surface According to the Angle Different Knee Flexion Angles on Healthy Adult’s Balance Ability
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Ryu Bueong-Ho
Hong Hyun-Pyo
Choi Tae-Seok
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Abstract
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Background: The aim of this study was to compare the effects of squat training on an unstable support surface with different knee flexion angles on the balance ability of normal adults balance ability.
Methods: 41 university students in their 20s attending N University in Cheonan, Chungcheongnam-do were divided into a 45-degree knee-bending squat training group and a 90-degree knee-bending squat training group. The groups trained on an unstable support surface 20 minutes per day, 3 times a week, for a total of 4 weeks.
Results: Changes in static balance ability were not significant within and between the groups for both the sway distance and sway area in the eyes open and eyes closed states (p<.05). The changes in dynamic balance ability were significant in the forward, leftward, and rightward angles in both groups at the limit of stability (p<.05), but not significant in the backward angle (p>.05), and the comparison between groups was not significant (p>.05).
Conclusion: No significant difference between static balance-related variables within and between the groups was found. Significant changes in dynamic balance-related variables within the groups were found but not between the groups. Therefore, in future studies, it is considered necessary to study various ages and differentiated intervention periods, such as young adults and the population of elderly people, with sufficient intervention periods to affect balance ability.
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KEYWORD
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Dynamic balance, Knee angle, Squat training, Static balance, Unstable surface
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