한국전문물리치료학회지 (Physical Therapy Korea)

  • 제20권1호
  • /
  • Pages.55-63
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  • 2013
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  • 1225-8962(pISSN)
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  • 2287-982X(eISSN)
한국전문물리치료학회 (Korean Research Society of Physical Therapy)
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Effects of Axillary Crutch Length on EMG Activity of the Trunk Muscles and Range of Motion of the Lumbar Spine, Pelvis, and Hip Joint in Healthy Men

  • Kang, Min-Hyeok (Dept. of Rehabilitation Science, The Graduate School, Inje University) ;
  • Jang, Jun-Hyeok (Dept. of Physical Therapy, Haeundae Jaseng Hospital of Oriental Medicine) ;
  • Kim, Tae-Hoon (Dept. of Occupational Therapy, Kaya University) ;
  • Oh, Jae-Seop (Dept. of Physical Therapy, College of Biomedical Science and Engineering, Inje University)
  • 투고 : 2012.10.26
  • 심사 : 2012.12.17
  • 발행 : 2013.02.19
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초록

This study investigated the effects of axillary crutch length on trunk muscle activity and lumbo-pelvic-hip complex movements during crutch gait. Eleven healthy men participated in this study. The participants performed a three-point gait with optimal, shorter, and longer crutch lengths. Weight-bearing (WB) side was determined as the dominant leg side. The electromyography (EMG) activity of the bilateral rectus abdominis (RA) and erector spinae (ES) muscles and lumbo-pelvic-hip complex movements were monitored using a three-dimensional motion system with wireless surface EMG. Differences in the EMG activity of RA and ES muscles and range of motion (ROM) of lumbar spine, pelvis, and hip among conditions were analyzed using one-way repeated-measures analysis of variance, and a Bonferroni correction was conducted. There was less RA muscle activity on the WB side under the optimal crutch length condition compared with shorter and longer crutch length conditions (p<.05). The EMG activity of the RA muscle on the non-WB side and ES muscle on the WB side were significantly decreased under the optimal crutch length condition compared with shorter crutch length condition (p<.05). No significant differences in the EMG activity of the ES muscle on the non-WB side and ROM of lumbo-pelvic-hip complex were found among conditions (p>.05). These findings indicate that the optimal crutch length improves the trunk muscle efficiency during crutch gait.

키워드

참고문헌

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피인용 문헌

  1. Effects of spring-loaded crutches on gastrocnemius activity and upward displacement of the body during gait vol.28, pp.8, 2016, https://doi.org/10.1589/jpts.28.2347
  2. 젊은 여성의 몸통 근육 활성도 분석을 통한 목발 길이 측정 방법의 효율성 비교 vol.15, pp.1, 2013, https://doi.org/10.13066/kspm.2020.15.1.77