Physical Therapy Korea (한국전문물리치료학회지)

Korean Research Society of Physical Therapy (한국전문물리치료학회)
권호 표지

The Influence of Unstability of Supporting Surface on Trunk and Lower Extremity Muscle Activities During Bridging Exercise Combined With Core-Stabilization Exercise

중심 안정성 운동을 적용한 교각운동 시 지지면 불안정성이 체간 및 하지의 근 활성도에 미치는 영향

  • 이심철 (한서대학교 대학원 물리치료학과) ;
  • 김택훈 (한서대학교 물리치료학과) ;
  • 신헌석 (한서대학교 물리치료학과) ;
  • 노정석 (한서대학교 물리치료학과)
  • Received : 2009.09.15
  • Accepted : 2009.11.19
  • Published : 2010.02.19
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Abstract

The aim of this study was to investigate the effect of supporting surface instability to trunk and lower extremity muscle activities during bridging exercise combined with core-stabilization exercise. Thirty young healthy adults (15 males and 15 females) voluntarily participated in this study. Each subject was asked to perform bridging exercise combined with core-stabilization exercise on three different supporting surfaces (stable ground surface, the wooden balancing board, and the air cushion). The muscle activities were measured using surface electromyography (EMG) during performing exercise. To test statistical significance, one-way ANOVA with repeated measures was used with the significance level of .05. The findings of this study are summarized as follows. (1) There were significant differences in muscle activities on internal oblique, external oblique, gluteus medius, semitendinosus, biceps femoris, medial gastrocnemius and lateral gastrocnemius during exercise (p<.05). (2) The biceps femoris and lateral gastrocnemius showed significantly higher muscle activity on the wooden balancing board rather than on the ground, and semitendinosus, biceps femoris, medial gastrocnemius and lateral gastrocnemius showed significantly higher muscle activity on the air cushion rather than on the ground (p<.05). Therefore, it is concluded that muscle activities in the trunk and the lower limbs during bridging exercise combined with core-stabilization exercise was affected with instability of supporting surface. Further researches are needed to investigate the long term effect of bridging exercise on muscle activity with patient group.

Keywords

References

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