Affiliations: [a] Department of Physiotherapy and Rehabilitation,
Erasmus Hospital, Brussels, Belgium | [b] Research Unit for Manual Therapies, University of
Brussels, Brussels, Belgium | [c] Department of Functional Anatomy, University of
Brussels, Brussels, Belgium | [d] School of Physical Therapy and Rehabilitation,
University of Brussels, Brussels, Belgium
Note: [] Address for correspondence: P.-M. Dugailly, Erasmus Hospital,
Université Libre de Bruxelles, Department of Physiotherapy and
Rehabilitation, 806, route de Lennik, 1070 Brussels, Belgium. Tel.: +32 2 555
46 94; Fax: +32 555 67 02; E-mail: pdugaill@ulb.ac.be
Abstract: The purpose of this study was to assess hip muscle performance in
the three anatomical planes and to assess the reproducibility of measurements
using isokinetic dynamometry. Twenty-eight symptom free amateur sportsmen
students (11 females, 17 males), performed three consecutive isokinetic
evaluations of both hips at 60 and 120°/s. Nine male subjects performed a
test-retest protocol. Reproducibility was reported using different statistical
methods such as intraclass correlation coefficients, mean difference, standard
error and 95% confidence intervals. Compared to the women's PT, men scored
significantly higher in all velocities with the generally expected
torque-velocity relationships. No dominance effect was noted. Significant
differences between agonist and antagonist muscle performance were also
indicated. The agonist/antagonist ratios ranged 0.74–1.48 and were
significantly influenced by velocity with a significant inter-group difference
at 120°/s. Results based on the test-retest paradigm indicate caution in
the interpretation of the peak torque (PT).
