Article

This study aimed to evaluate intrarater and interrater reliability when measuring
hip abductor strength in the supine position using a hand-held dynamometer (HHD)
(Study 1), and to elucidate the relationships between measured values and
examiners' physical characteristics (Study 2). Three healthy examiners (1 female,
24 y.o. and 2 males 23 and 27 y.o) and 12 subjects (6 females, 24.5 +/- 2.8 years
and 6 males, 27.7 +/- 3.5 years) participated in Study 1, and 20 healthy
examiners (7 females, 22.3 +/- 1.3 years and 13 males, 29.4 +/- 8.2 years) and 2
subjects (1 female, 24 y.o. and 1 male 27 y.o) participated in Study 2. All
healthy examiners were hospital employees. Hip abductor strength was measured by
HHD with hand fixation and with belt fixation, and examiner age, sex, height,
weight, BMI, and dominant hand grip strength were evaluated. The intraclass
correlation coefficient (ICC) (1,1), a measure of intrarater reliability, was
0.89-0.95 with hand fixation and 0.96-0.97 with belt fixation. ICC (2,1), a
measure of interrater reliability, was 0.76-0.79 and 0.90-0.93, respectively. In
subjects with high muscle strength (the examiner's hand was moved), the
examiner's dominant hand grip strength affected muscle strength values with hand
fixation (standardized partial regression coefficient = 0.78, determination
coefficient R(2 )= 0.61, p < 0.01). In subjects with low muscle strength (the
examiner's hand was not moved), no variables had effect. When the muscle strength
of the subject is weak, both methods can be used. When the muscle strength of the
subject is strong, it is necessary to adjust the value obtained by the examiner's
dominant hand grip strength in the hand fixation method.

Langue : ANGLAIS