Article

This study examined the accuracy and reproducibility of a body-fixed sensor-based
assessment for quantifying frontal plane angular movements of the (upper) thorax
and pelvis of patients with hip osteoarthritis at different walking speeds. To evaluate accuracy, the angular movements of sensors attached to the thorax and
pelvis of three patients were compared with results based on an optical motion
analysis system. Accuracy was high, with small and consistent mean differences
(<1.0 degree) and corresponding standard deviations (<1.3 degrees) between
optical motion analysis system and body-fixed sensor data. To evaluate
reproducibility, angular trunk movements were assessed twice in 15 patients.
Reproducibility was high (intraclass correlation coefficients ranged from 0.86 to
0.97), and the values of the mean differences between the test and retest were
small, with the 95% confidence interval containing zero. This body-fixed
sensor-based assessment is an accurate and reproducible method for quantifying
frontal plane compensatory trunk movements during gait of patients with hip osteoarthritis at different walking speeds.

Langue : ANGLAIS