근긴장도검사기 (Myotonometer)를 이용한 상완이두근과 대퇴사두근 검사의 신뢰도 연구

Intra-Rater and Inter-Rater Reliability of the Myotonometer in the Assessment of Biceps Brachii and Quadriceps

Muscle tone (stiffness/hardness) or muscle compliance changes during muscle contraction. The purposes of this study were to assess the intrarater and interrater reliabilities of the MyotonometerⓇ, electronic de-vice that quantifies muscle tone. Two raters used the Myotonometer to assess the right bicep brachia and quadriceps muscles of 30 voluntary persons without any orthopedic or neurological problems (age range, 18~21 yrs). Muscles were measured in a relaxed state and during brief sustained voluntary maximal iso-metric contraction. Intrarater correlation coefficients were calculated for each muscle and for each con-dition (relaxed and contracted). Intrarater reliabilities intraclass correlation coefficients, ICCs) ranged from .778 to .954, relaxed, biceps brachia), .926 to .963 contracted, biceps brachia), .935 to .990 (relaxed, quad-riceps) and .679 to .952(contracted, quadriceps). lnterrater reliabilities ranged from .652 to .790 (relaxed, biceps brachii), 813 to .907 (contracted, biceps brachii), .831 to .950 (relaxed, quadriceps) and .849 to .937 (contracted, quadriceps). Myotonometer measurements had high to very high intrarater and interrater reli-ability for measurements of the biceps brachia and quadriceps muscles.