지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.1
- 수록면
- 16 - 23 (8page)
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초록· 키워드
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The purpose of this study was to investigate the effects of a repetitive lifting task on the level of activation and median frequency of the paraspinal muscles, and to provide basic data of the maximal acceptable duration of the lifting task to avoid muscle fatigue. Ten healthy male subjects were recruited as participants and they repetitively (12 lifts/min) lifted a box (46 ㎝ × 30 ㎝ × 30 ㎝, 15 ㎏) for 10 minutes. Electromyographic data (muscle activation and median frequency), heart rate, and Borg CR10 score were recorded at 1, 3, 5, 7, and 9 minutes after the lifting task. Electromyographic data was recorded from the elector spinalis, mutifidus, external oblique abdominis, and rectus abdominis for 1 minute. The results showed that as the repetitive lifting task progressed, the heart rate and Borg CR10 score significantly increased. In addition, activation of the muscles increased. The median frequency significantly decreased over time in the elector spinalis, mutifidus, and external oblique abdominis (right side), except for the external oblique abdominis (left side) and rectus abdominis. It is suggested that the median frequency recorded from a dynamic task is used to monitor muscle fatigue. Furthermore, the repetitive lifting task (15 ㎏, 12 lifts/min) should not continue for more than 3 minutes in order to avoid muscle fatigue.
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참고문헌 (28)
참고문헌 신청
AIHA Technical Committee / 1971 / Ergonomics guide to assessment of metabolic and cardiac costs of physical work / Am Ind Hyg Assoc J 32 (8) : 560 ~ 564
Allison GT / 2001 / Trunk muscle fatigue during a back extension in standing / Man Ther 6 (4) : 221 ~ 228
Arnall FA / 2002 / Between-days reliability of electromyographic measures of paraspinal muscle fatigue at 40, 50, and 60% levels of maximal voluntary contraction force / Clin
Bonato P / 2003 / Muscle fatigue and fatigue-related biomechanical changes during a cyclic lifting task / Spine 28 (16) : 1810 ~ 1820
Champagne A / 2008 / Back and hip extensor muscle fatigue in healthy subjects: Task-dependency effect of two variants of the Sorensen test / Eur Spine J 17 (12) : 1721 ~ 172
Allison GT / 2001 / Trunk muscle fatigue during a back extension in standing / Man Ther 6 (4) : 221 ~ 228
Arnall FA / 2002 / Between-days reliability of electromyographic measures of paraspinal muscle fatigue at 40, 50, and 60% levels of maximal voluntary contraction force / Clin
Bonato P / 2003 / Muscle fatigue and fatigue-related biomechanical changes during a cyclic lifting task / Spine 28 (16) : 1810 ~ 1820
Champagne A / 2008 / Back and hip extensor muscle fatigue in healthy subjects: Task-dependency effect of two variants of the Sorensen test / Eur Spine J 17 (12) : 1721 ~ 172
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