등속성 운동 시 근전도 주파수 분석에서 얻은 피로지수의 특성

• 영문명: Characteristics of the fatigue Index in EMG Power Spectrum Analysis During Isokinetic Exercise
• 발행기관: 한국전문물리치료학회
• 저자명: 원종임(Won Jong-im) 조상현(Cho Sang-hyun) 이충휘(Yi Chung-hwi) 권오윤(Kwon Oh-youn) 이영희(Lee Young-hee) 박정미(Park Jung-mi)
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제8권 제3호, 11~26쪽, 전체 16쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2001.09.30

영문 초록

In rehabilitation programs involving muscle re-education and endurance exercise, it is necessary to confirm when fatigue occurs. It is also necessary to quantify fatigue, to confirm whether the muscle has been exercised sufficiently. In general, as fatigue occurs, the force-generating ability of the muscle is reduced. If the median frequency (MDF) obtained from electromyogram (EMG) power spectrum is correlated highly with work, then the timing and degree of fatigue may be confirmed. This study examined the relationship between work and MDF obtained from the EMG power spectrum during repetitive isokinetic exercise. Surface EMG signals were collected from biceps brachii and vastus lateralis of 52 normal subjects (26 males, 26 females) at 120°/sec and 60°/sec while performing an isokinetic exercise. The exercise was finished at 25% of peak work. MDF data was obtained using a moving fast Fourier transformation (FFT), and random noise was removed using the inverse FFT, then a new MDF data was obtained from the main signal. There was a high correlation between work and MDF during repetitiv isokinetic exercise in the biceps brachii and vastus lateralis of males and the biceps brachii of females (r=.50 ~.77). However, there was a low correlation between work and MDF in the vastus larteralis of females (r=.06~.19).

목차

Abstract

Ⅰ. 서론

Ⅱ. 연구방법

Ⅲ. 결과

Ⅳ. 고찰

Ⅴ. 결론

인용문헌

키워드

Electromyogram Isokintic exercise Median frequency Muscle fatigue Work