등척성 신전운동 시 요부근의 근 활성도

• 영문명: Muscle Activity of Low Back Muscles During Isometric Back Extension Exercises
• 발행기관: 한국전문물리치료학회
• 저자명: 유원규(Yu Won-gyu) 정영종(Jung Young-jong) 이재호(Jung Young-jong) 김창인(Kim Chang-in)
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제8권 제1호, 76~88쪽, 전체 13쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2001.03.31

영문 초록

Back extension exercises have been used for rehabilitation of the injured low back, prevention of injury, and fitness training programs. However, excessive loading on low back can exacerbate existing structural weakness. The purpose of this study was to compare muscle activity of low back muscles during back extension exercises. Twenty healthy male subjects were evaluated. Electromyographic(EMG) activities of low back muscles at L1 and L5 level were recorded during seven different back extension exercises and two reference tasks by surface EMG and saved for data analysis. Reference tasks of lifting 20% and 40% of their body weight were included for comparison. The result were as follows: 1) Single-arm extension and single-leg extension exercises on quadruped position appeared to constitute a low-risk exercise for initial extensor strengthening. 2) When arm extension was combined with contralateral leg extension on quadruped position, EMG activities of low back muscles were increased. 3) EMG activity of low back muscles was highest during the trunk extension exercises on prone position. 4) EMG activities of low back muscles during arm and leg extension exercises on quadruped position were less than those of reference task of lifting 40% of their body weight. These results have important implications for progressive back extensor muscle strengthening exercises in patient with back pain.

목차

Abstract

Ⅰ. 서론

Ⅱ. 연구방법

Ⅲ. 결과

Ⅵ. 고찰

Ⅴ. 결론

인용문헌

키워드

Electromyography Extension exercise Lumbar extensor muscle Rehabilitation