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계단 오르기 보행 시 속도 변화가 족저압력과 근활성도에 미치는 영향
The Effect of Stair Ascending Speed on Foot Pressure and Lower Extremity Muscle Activation Patterns
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- 발행기관
- 한국스포츠학회 바로가기
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- 간행물
- 한국스포츠학회지 KCI 등재후보 바로가기
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- 통권
- 제11권 제1호 (2013.03)바로가기
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- 페이지
- pp.239-249
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- 저자
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- 언어
- 한국어(KOR)
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- URL
- https://www.earticle.net/Article/A196650
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4,200원
원문정보
초록
- 영어
- The purpose of this study was to investigate the effect of stair ascending speed on lower extremity muscle activations during stance phase of healthy young males. [METHOD] Ten college male students participated in the experiment. The speed of stair ascending was controlled at four different conditions (slow: 75steps/min, normal: 108steps/min, fast: 118 steps/min, preferred) by using a metronome. Pressure insole was placed in the shoe and EMG electrodes were attached to eight muscles (retus femoris, vastus lateralis, vastus medialis, tibialis anterior, lateral gastrocnemius, medial gastrocnemius, semitendinosus, and gluteus maximus) of the right leg. Subject was asked to climb fifteen consecutive stairs for each speed. Six steps of the right leg were selected for the analysis of stance and swing time, vertical force, peak pressure and area as well as peak EMG and IEMG(the area of EMG signal or amount of muscle activations). The order of speed was randomized to eliminate their learning effect. [RESULT] Stance and swing time were decreased as the speed was increased. Vertical force and peak pressure was increased with an increased speed but impulse was decreased with an increased speed. Peak EMG was increased in flexor and extensor of the knee and plantar flexor of the ankle as the ascending speed was increased. However, there was a tendency to show decreased peak EMG in gluteus maximus and tibialis anterior. On the other hands, an IIEMG was decreased in knee extensors (retus femoris, vastus lateralis, and vastus medialis) while there was a tendency to show increased IEMG of ankle dorsi-flexor with an increased speed of stair ascending. Especially, The level of peak EMG during the preferred stair ascending was placed between slow and medium stair ascending speed but the integrated EMG of the preferred stair ascending was the lowest among the four conditions. [CONCLUSION] Peak EMG activity of majority lower extremity muscles except gluteus maximus was increased while IEMG was decreased with an increased ascending speed. Furthermore, a preferred stair walking speed seems to be more efficient during stair ascending in terms of muscle recruitment compared to the other three conditions. Based on the results, the understanding of lower extremity muscle recruitment and pressure patterns by stair ascending speed would be valuable for future development of effective exercise intervention using stairs.
목차
Ⅰ. 서론
Ⅱ. 연구 방법
1. 연구 대상
2. 실험 장비
3. 실험 절차
4. 근전도 및 족저압력 자료 수집 및 자료처리
5. 통계처리
Ⅲ. 결과
1. 속도변화에 따른 소요시간과 족저압력
2. 속도변화에 따른 근육별 최대 근활성도
3. 속도변화에 따른 근육별 근활성 면적 비교
Ⅳ. 논의
1. 속도변화에 따른 소요시간과 족저압력
2. 속도변화에 따른 근육별 최대 근활성도
3. 속도변화에 따른 근육별 면적 근활성도
Ⅴ. 결론 및 제언
참고문헌
ABSTRACT
키워드
Stair walking Ascending speed Pressure Peak EMG Integrated EMG저자
간행물 정보
발행기관
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- 발행기관명
- 한국스포츠학회 [Korea Sport Society]
- 설립연도
- 2003
- 분야
- 예술체육>체육
- 소개
- 현대사회에 있어서 신체활동 연구의 주요 탐구과제는 ‘신체활동을 통한 교육’으로부터 ‘인간의 기본적인 움직임’을 목표로 하는 스포츠적인 움직임을 중심으로 한 생명 활동의 개념으로 급속히 변화되고 있는 추세이다. 이러한 환경변화에 대응하기 위하여 본학회는 ‘체육’적인 요소에서 ‘스포츠’적인 요소를 중심으로 한 학문적 정체성을 견고히 하고, 정기적인 학술지 발간과 학술활동을 통해 한국스포츠츠 문화의 발전과 학문적인 발전에 기여하는데 그 목적이 있다.
간행물
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- 간행물명
- 한국스포츠학회지 [The Korea Journal of Sport]
- 간기
- 계간
- pISSN
- 1738-3250
- 수록기간
- 2003~2026
- 등재여부
- KCI 등재
- 십진분류
- KDC 692 DDC 796
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