Article

Objective: To investigate the test-retest repeatability of the
measurement of the gluteus maximus strength using a fixed
digital dynamometer.
Design: Test-retest design. The strength of the gluteus maximus
was measured in prone position during 2 sessions an
average of 6 days apart.
Setting: Gait analysis laboratory.
Participants: Eleven children with spastic diplegic (n
10)
and hemiplegic (n
1) cerebral palsy (CP), age 6 to 14 years,
and 11 aged-matched children. All were able to walk independently,
but 2 in the CP group used walking aids.
Interventions: Not applicable.
Main Outcome Measures: On 2 occasions, gluteus maximus
strength was measured 3 times in 2 positions of the hip
joint. Repeatability of the measurements was assessed by intraclass
correlation coefficients (ICCs), coefficients of variation,
and the coefficient of repeatability.
Results: When normalized to body mass, children with CP
had significantly less gluteus maximus strength compared with
the controls. The ICCs for the control group ranged from .76 to
.85 and from .75 to .83 for the involved leg in the CP group.
Conclusions: The reliability of measurement of gluteus
maximus strength was good for both control group and the
involved leg of the CP group. The normalized values for
gluteus maximus strength and measures of reproducibility can
be used when measuring gluteus maximus strength in children
with CP.

Langue : ANGLAIS