Effects of Different Types of Isometric Hip Contraction on Gluteus Medius and Tensor Fasciae Latae Activity During Squat Exercises

• 발행기관: 한국전문물리치료학회
• 저자명: Hae rim Han Jeong ah Kim One bin Lim Heon seock Cynn Chung hwi Yi
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제22권 제3호, 71~80쪽, 전체 10쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2015.09.30

영문 초록

Hip muscle activation and strengthening exercise programs are often used to prevent and treat various lower extremity injuries. Common exercise programs include squat exercises. The purposes of this study were to investigate gluteus medius (GMED) and tensor fasciae latae (TFL) muscle activity, and to assess the GMED/TFL ratio during squat exercises involving different isometric hip contraction conditions. Different types of isometric hip contraction were standard squat without hip contraction, squats with isometric hip adduction, and squats with isometric hip abduction. Twenty (10 males and 10 females) healthy subjects (23.7±2.8 years old) were recruited. Subjects performed the squat exercises with the back supported by a wall and knees flexed to 60°. Surface electromyography (EMG) was used to measure GMED and TFL activity. One-way repeated analysis of variance was used to compare GMED and TFL muscle activity and the GMED/TFL ratio. GMED and TFL EMG activity was significantly higher during squats with isometric hip adduction and abduction compared with the standard squat without hip contraction (p<.05). Between the isometric hip adduction and abduction contraction conditions, only the TFL EMG activity was significantly higher during squats with isometric hip adduction than isometric hip abduction (p<.05). The GMED/TFL ratio was significantly higher during squats with isometric hip adduction than isometric hip abduction (p<.05). Squats with isometric hip adduction and abduction improved GMED and TFL muscle activity. Furthermore, the GMED/TFL ratio was higher during isometric hip adduction than isometric hip abduction. Our data indicate that squat exercises involving isometric hip adduction enhance GMED muscle activity.

목차

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키워드

Gluteus medius Tensor fasciae latae Squat