Earticle

초록

영어

Background: Flexible flatfoot is a condition in which the medial longitudinal arch collapses under weight-bearing despite appearing normal at rest. This structural change may result in muscle imbalances and impaired foot function. Short foot exercises (SFE) are often used to strengthen intrinsic foot muscles and improve arch stability. Prior studies have demonstrated that combining hip abduction with SFE enhances abductor hallucis activation and supports medial arch correction. However, the effects of different levels of hip abduction resistance on this mechanism remain unclear. Methods: Twelve adults (mean age 27.92 years) with flexible flatfoot participated. Participants performed SFE under four randomized hip abduction resistance conditions (0㎏, 5㎏, 10㎏, 15㎏). The muscle activity of the abductor hallucis (Abd.H), tibialis anterior (TA), peroneus longus (PL), and gluteus medius (G.med) was measured using Noraxon Ultium surface EMG. Each condition was repeated three times with a one-minute rest between contractions and a three-minute rest between conditions. Data were analyzed using repeated measures ANOVA and LSD post-hoc analysis (α=.05). Results: Abductor hallucis showed a statistically significant increase in muscle activation as resistance increased (p<.001), with the largest increase between 0㎏ and 5㎏. No significant differences were observed among the higher resistance levels. Tibialis anterior activity also significantly increased under the 5㎏ and 10㎏ conditions compared to 0㎏ (p=.023, p=.033). The peroneus longus and gluteus medius showed no significant overall differences, although PL approached significance between 0㎏ and 10㎏ (p=.061), and G. med displayed a quadratic trend (p=.030). Conclusion: Hip abduction resistance during SFE significantly enhances abductor hallucis activity in individuals with flexible flatfoot, especially at 5㎏ resistance. This suggests that minimal resistance can effectively promote intrinsic foot muscle activation, offering a targeted intervention strategy for arch support and rehabilitation.

목차

ABSTRACT
I. 서론
II. 연구 방법
1. 연구 대상자
2. 연구 절차
3. 측정 도구 및 방법
4. 측정 방법
5. 자료 분석
Ⅲ. 결과
1. 연구 대상자의 일반적인 특성
2. 연구 결과
Ⅳ. 고찰
Ⅴ. 결론
참고문헌

키워드

저자

• 한도운 [ Do-un Han | 대구대학교 일반대학원 물리치료학과 대학원생 ]
• 김명권 [ Myoung-kwon Kim | 대구대학교 재활과학대학 물리치료학과 교수 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한정형도수물리치료학회지 [The Journal of Korean Academy of Orthopedic Manual Physical Therapy]

• 간기

  연3회

• pISSN

  1226-3680

• eISSN

  2508-7282

• 수록기간

  1995~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 512 DDC 615