Comparison of the Muscle Activity of Lumbar Stabilizers Between Stoop and Semi -Squat Lifting Techniques at Different Lifting Loads

• 발행기관: 한국전문물리치료학회
• 저자명: Hoe-song Yang Oh-yun Kwon Yeon-seop Lee
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제19권 제3호, 105~113쪽, 전체 9쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2012.09.30

영문 초록

The study was performed to compare the muscle activity of lumbar stabilizers between stoop and semi-squat lifting techniques at different lifting loads. Twenty healthy subjects (9 males, 11 females) were recruited for this study. Muscle activity of external obliques (EO), internal obliques (10) and lumbar multifidus (LM) muscle was measured by surface electromyography during stoop and semi-squat lifting at different lifting loads (10%, 20%, and 30% of the subject’s body weight). A one-way repeated measure ANOVA was applied. The results showed that EMG activity of EO was significantly increased with a load of 30% of body weight compared to 10% and 20% of body weight in both lifting techniques (p<'05). Muscle activity of LM was significantly increased in 20% compared to 10% and 30% compared to 10% of subject’s body weight in stoop lifting and the muscle activity of LM was significantly increased in 20% compared to 10%, 30% compared to 20%, and 30% compared to 10% of the subject’s body weight in semi-squat lifting (p<.05). However, there was no significant difference in activity of IO according to lifting loads in both lifting techniques. There were no significant differences in muscle activity of EO, IO, and LM between stoop and semi-squat technique (p>'05). Therefore, the results of this study suggested that the EO can contribute to increase the lumbar stability during stoop and semi-squat lifting at 30% of body weight rather than at lower loads, and the LM seems to act as counteractor to imposed loads during stoop and semi -squat lifting with increasing loads.

목차

Abstract

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키워드

Lifting loads Lifting techniques Lumbar stabilizer Surface electromyography