회내족 환자의 드레트밀 보행시 회내각과 넓다리두갈래근의 근전도 피로지수 사이의 상관관계
The pronation foot can increase muscle activity, and may result in muscle fatigue and overuse syndromes. This paper aims to examine the relationships between muscle fatigue indices and pronation angles (PRA) larger than 20° for pronated foot subjects. Twelve subjects in the 15-61 age range were part...
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Published in | 한국정보전자통신기술학회 논문지 Vol. 17; no. 2; pp. 108 - 112 |
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Main Authors | , |
Format | Journal Article |
Language | Korean |
Published |
한국정보전자통신기술학회
2024
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Subjects | |
Online Access | Get full text |
ISSN | 2005-081X 2288-9302 |
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Abstract | The pronation foot can increase muscle activity, and may result in muscle fatigue and overuse syndromes. This paper aims to examine the relationships between muscle fatigue indices and pronation angles (PRA) larger than 20° for pronated foot subjects. Twelve subjects in the 15-61 age range were participated, and EMG of their biceps femoris were measured during treadmill walking at 4.5 km/h for 30 seconds. Slopes of the median frequency and the magnitude in the low frequency band were estimated respectively as muscle fatigue indices (MFIs). We hypothesized that the relationships between MFIs and PRA for the subjects in this paper be similar to those for normal ones. The test results demonstrated that we could obtain the significant correlation coefficients between MFIs and PRA (r>0.60; p<0.05). 회내족은 넙다리두갈래근의 활성화를 증가시키거나 근피로 또는 과사용증후군(overuse syndromes)을 초래한다. 본 연구에서는 회내각(pronation angles)이 20° 이상인 회내족 피험자를 대상으로 회내각과 근피로지수와의 관계를 파악하는 것이다. 나이 범위가 15-61세인 12명의 피험자가 실험에 참여하였으며, 30초 동안 4.5 km/h의 속도로 트레드밀 보행시 넙다리두갈래근의 근전도를 측정하여 근피로지수인 중앙주파수와 저주파수 대역 크기의 기울기를 산출하였다. 본 연구에 참여한 피험자로부터 산출한 두 가지 근피로지수와 회내각 사이의 관계가 정상인과 유사할 것이라는 가정 하에 실험한 결과, 근피로지수와 회내각 사이의 유의한 상관성을 얻을 수 있었다 (r>0.60; p<0.05). |
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AbstractList | The pronation foot can increase muscle activity, and may result in muscle fatigue and overuse syndromes. This paper aims to examine the relationships between muscle fatigue indices and pronation angles (PRA) larger than 20° for pronated foot subjects. Twelve subjects in the 15-61 age range were participated, and EMG of their biceps femoris were measured during treadmill walking at 4.5 km/h for 30 seconds. Slopes of the median frequency and the magnitude in the low frequency band were estimated respectively as muscle fatigue indices (MFIs). We hypothesized that the relationships between MFIs and PRA for the subjects in this paper be similar to those for normal ones. The test results demonstrated that we could obtain the significant correlation coefficients between MFIs and PRA (r>0.60; p<0.05). 회내족은 넙다리두갈래근의 활성화를 증가시키거나 근피로 또는 과사용증후군(overuse syndromes)을 초래한다. 본 연구에서는 회내각(pronation angles)이 20° 이상인 회내족 피험자를 대상으로 회내각과 근피로지수와의 관계를 파악하는 것이다. 나이 범위가 15-61세인 12명의 피험자가 실험에 참여하였으며, 30초 동안 4.5 km/h의 속도로 트레드밀 보행시 넙다리두갈래근의 근전도를 측정하여 근피로지수인 중앙주파수와 저주파수 대역 크기의 기울기를 산출하였다. 본 연구에 참여한 피험자로부터 산출한 두 가지 근피로지수와 회내각 사이의 관계가 정상인과 유사할 것이라는 가정 하에 실험한 결과, 근피로지수와 회내각 사이의 유의한 상관성을 얻을 수 있었다 (r>0.60; p<0.05). |
Author | 원종칠(Jongchil Won) 이기영(Kiyoung Lee) |
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DocumentTitle_FL | Correlations between pronation angle and EMG fatigue indices of biceps femoris muscles during treadmill walking of pronated foot subjects |
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Title | 회내족 환자의 드레트밀 보행시 회내각과 넓다리두갈래근의 근전도 피로지수 사이의 상관관계 |
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