부산대학교 도서관

Objective: To investigate the reliability of 'make test' (MT) and 'break test' (BT) of hip abduction using hand-held dynamometry. Design: A repeated measures reliability assessment design for the estimation of inter-rater reliability, in which pairs of testers rated each subject in a 2/3 fractional factorial was used. Both tests ('BT' and 'MT') were performed on both legs twice by 2 testers, for a total of 16 ratings for each participant. Participants: 39 healthy subjects between the ages of 21 and 70 years old volunteered. Main outcome measure: Variance components were computed from the repeated measures to assess inter-rater reliability of measurement. Reliability was estimated as a ratio of variance components. Results: Both tests proved to be highly reliable in nature with values above 0.87 overall. Further examination revealed that gender had a small effect on reliability, yet differences in results were noted between raters on the BT more than the MT. Conclusions: Hip abduction strength can be measured and reproduced between testers reliably using both a 'MT' and 'BT' and a long lever arm with pelvic stabilization. Statistically, the 'MT' appears to be slightly more reliable than the 'BT', but clinically, the 'BT' is more practical and convenient. [ABSTRACT FROM AUTHOR]