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Effect of Visual Feedback Squat Motion on Core Muscles Thickness of Young People with Lower Back Pain

대한물리치료학회지 2019년 31권 4호 p.216 ~ 221
 ( Jeong Ho-Jin ) - Nambu University Graduate School Department of Physical Therapy

박치복 ( Park Chi-Bock ) - Somoonnan Orthopedic Clinic Department of Physical Therapy
 ( Kim Yong-Nam ) - Nambu University Department of Physical Therapy


Purpose: This study examined the effect of visual feedback squat on the core muscle thickness of young adults experiencing back pain.

Methods: Thirty adult men and women who experienced back pain were assigned randomly to 15 members of the visual feedback squat group (VSG) and 15 of the normal squat group (NSG) to train three times a week for a total of eight weeks. The core muscle thickness was compared prior to the test for four weeks and eight weeks after the test by dividing it into warm-up exercise, main exercise, and 10 minutes finishing exercise. Before, and four weeks and eight weeks later, the thickness of the core muscle was compared using an ultrasonic imaging system. Repeated measured ANOVA was performed to compare the groups, and a Bonferroni test was performed as a post-hoc test to assess the significance of the timing of the measurements in each group according to the periods. An independent t-test was conducted to test the significance between the groups according to the measurement points.

Results: A significant change in the main effects of time and interactions of the time difference in muscle thickness of transvers abdominis were observed between the visual feedback squat and control groups according to the measurement point (p<0.05). No significant difference in the muscle thickness of both muscles was observed between the groups with the exception of the right abdominis (p>0.05).

Conclusion: These findings suggest that visual feedback squat exercise is expected to have positive effects on the development of transverse abdominis in core muscles.


Squat exercise; Core muscle; Visual feedback; Lower back pain
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