Article

Muscle power, muscle strength and postural sway are considered to be determinants
of fall risk and gait in Parkinson's disease (PD) and potential targets for
therapeutic trials. However, the potential usefulness of these tests as outcome
measures depends on their reproducibility in the PD population. Therefore,
measures of leg muscle power, leg muscle strength, postural sway and mobility
were taken on two occasions 1 week apart in 31 people with PD. Measures of muscle
power, muscle strength and mobility were found to be very reliable (intraclass
correlation coefficients (ICC(3,1) 0.50-0.97)) and showed good agreement, i.e.
small measurement error. Postural sway measures showed poor reliability (ICC(3,1)
0.04-0.51) and agreement, especially in the presence of disabling dyskinesia. The
moderate to high reproducibility of leg muscle power, muscle strength and
mobility measures in people with PD confirm their suitability as outcomes
measures in clinical and research settings. Further research into the clinical
measurement of postural sway in people with PD is warranted, especially in
individuals with dyskinesia.
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Langue : ANGLAIS