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플랭크 운동 시 지지면의 차이가 복부 근육의 두께 변화에 미치는 영향

Effect of Support Surface Form on Abdominal Muscle Thickness During Flank Exercise

대한통합의학회지 2019년 7권 3호 p.197 ~ 204
김현수 ( Kim Hyeon-Su ) - 경남정보대학교 물리치료과

이건철 ( Lee Keon-Cheol ) - 경남정보대학교 물리치료과
이건철 ( Lee Keon-Cheol ) - 경남정보대학교 물리치료과


Purpose: This study aimed to investigate the effects of flank exercise on the thickness of the abdominal muscles (transverse abdominis and external and internal obliques), which was measured with ultrasound.

Methods: The subjects were divided into the two groups and performed flank exercise on a stable surface (stable surface group) and an unstable surface (unstable surface group). A mat was used as a stable surface, and an air cushion (TOGU) used as a unstable surface. Both groups were asked to hold a flank for 45 seconds and to complete 3 sets of the flank exercise with 3 reps per set and a 45-second rest period between sets. The exercise training was conducted three times per week for 4 weeks.

Results : In both stable and unstable surface, the thickness changes of the transverse abdominis and external and internal oblique muscle increased (p<.05). In the unstable surface, there was a greater increase in the thickness change of the transverse abdominis and external oblique muscles in the flank exercise than in the stable surface (p.<05). Among them, the greatest increase was found in the external abdominal muscle (p<.05).

Conclusion : This study found that the flank exercise was more effective in strengthening the abdominal muscles on an unstable surface, when compared with the outcomes on a stable one. It is also thought to have the most effect on the muscle activity of the external oblique muscle on unstable surface.


abdominal muscles; flank exercise; muscle thickness; support surface
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