The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Analysis of Kinematic Motions of First Metatarsophalangeal Joint during Electrical Stimulation of Abductor Hallucis Muscle in Subjects with Hallux Valgus

엄지발가락가쪽휨증의 엄지벌림근 전기자극 시 첫 번째 발허리발가락관절의 운동형상학적 움직임 분석

  • Kim, Moon-Hwan (Department of Rehabilitation Medicine, Wonju Christian Hospital, Wonju College of Medicine, Yonsei University) ;
  • Koh, Eun-Kyung (Department of Physical Therapy, Masan University) ;
  • Jung, Do-Young (Department of Physical Therapy, College of Tourism & Health Science, Joongbu University)
  • 김문환 (연세대학교 원주의과대학 원주기독병원 재활의학과) ;
  • 고은경 (마산대학교 물리치료과) ;
  • 정도영 (중부대학교 관광보건대학 물리치료학과)
  • Received : 2012.06.28
  • Accepted : 2012.08.15
  • Published : 2012.08.25
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Abstract

Purpose: The purpose of this study is to compare the kinematic motion of the first metatarsophalangeal (MTP) joint during an electrical stimulation of abductor hallucis (AbdH) muscle, between the normal group and the hallux valgus (HV) group. Methods: A total of twenty subjects (normal group=10 and HV group=10) participated in this study. The kinematic motions of first MTP joint was measured by using 3-dimensional motion analysis during an electrical stimulation in the sitting position. The intensity of an electrical stimulation was set to be tolerated in each subject, and the data of kinematic motions were collected in three trials of 5 seconds. An independent t-test was used to compare the angle of flexion and abduction of the first MTP joint and proximal phalanx in frontal plane, between the normal and HV groups. Results: Participants showed that the angle of flexion was significantly greater in the HV group ($13.12{\pm}10.61^{\circ}$), compared to that of the normal group ($10.17{\pm}2.31^{\circ}$); and the angle of abduction was significantly smaller in the HV group ($10.61{\pm}4.99^{\circ}$) than that of the normal group. Also, the angle of the proximal phalanx in frontal plane was significantly smaller, compared to the normal group ($53.42{\pm}10.70^{\circ}$) (p<0.05). Conclusion: These findings suggest that dysfunction of AbdH muscle is apparent in HV deformity and provide insight into potential risk factors for the development of HV deformity.

Keywords

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