등속성 근기능 측정시 SEATED POSITION에 따른 무릎관절 근력의 차이
Difference in Muscular Strength of Knee Joint According to Seated Position of Backrest in Isokinetic system
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본 연구의 목적은 운동선수들의 무릎관절의 등속성 근력 측정 시 seated position 의자 등받이 경사각 100°, 120°, 140° 에서 단축성 및 신장성 근력을 측정하여 검사 position이 결과에 미치는 영향을 분석하는데 있다. 또한 등속성 기기를 이용한 운동생리학 연구방법에서 의자 등받이 경사각을 제시해야 하는 이유를 규명하는데 있다. 연구의 대상자는 20대 초반의 남자 12명을 대상으로, 등속성 기기를 이용하여 듣는쪽 60°/s, 120°/s, 180°/s의 각속도에서 검사를 수행하였다. 단축성근력의 측정결과 60°/s의 햄스트링, 대퇴사두근 모두 3종류의 경사각에 따라서 통계적인 유의한 차이를 나타내었고, 120°/s와 180°/s의 햄스트링에서 유의한 차이를 나타내었다. 신장성 근력의 측정결과 120°/s와 180°/s의 햄스트링과 대퇴사두근 모두 3종류의 경사각 사이에 유의한 차이를 나타내었다. 이러한 결과를 종합하여 볼 때 무릎관절의 등속성 운동검사를 수행하는 국내의 연구자들은 연구방법에 의자 등받이 경사각을 제시하여 주는 것이 바람직 할 것으로 사료된다.
Abstract
This study measures concentric and eccentric muscular strength in quadriceps femoris muscles and hamstring at the tilt angles in 100°, 120°, 140° of backrest in the seated position given performing isokinetic exercise test, and then analyzes on position as a test of having influence upon isokinetic exercise test. Thus, the aim is to clarify a reason that needs to suggest tilt angel of backrest in a research method of the exercise physiology with the use of isokinetic system. Research subjects targeted 12 healthy men in their early 20s. Test was performed at angular speed of 60°/s, 120°/s, 180°/s by using isokinetic system(Isomed 2000). As a result of measuring concentric muscular strength, the hamstring of 60°/s showed significant difference between 100˚, 120˚ and 140˚ in tilt angle. Quadriceps femoris muscles showed significant difference between 100˚ and 120˚, 140˚. Hamstring of 120°/s showed significant difference between 120˚ and 100˚. Hamstring of 180°/s showed significant difference between 120˚ and 140˚. As a result of measuring eccentric muscular strength, hamstring of 120°/s showed significant difference between 120˚ and 140˚. Quadriceps femoris muscles showed significant difference between 100˚ and 120˚. Hamstring of 180°/s showed significant difference between 100˚, 120˚ and 140˚. Quadriceps femoris muscles showed significant difference between 100˚ and 140˚. Synthesizing these results, domestic researchers, who carry out isokinetic exercise test on knee joint, are considered to be likely desirable to present tilt angle of backrest to a research method.
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