Article

Comparison of normative data between gait analysis services offers the potential
to harmonise data collection protocols. This paper presents a method for such a
comparison based on an assumption that the root mean square difference from the
inter-service mean is a reflection of systematic differences in protocols and
that the average standard deviation includes a component attributable to
within-centre measurement variability. Substantial normative datasets from two
highly respected clinical services were compared. The RMS difference for the
difference from the inter-centre mean was less than 1.7 degrees for all kinematic
variables apart from hip rotation (2.9 degrees ) and foot progression (2.1
degrees ), less than 0.1 Nm/kg for all joint moments and than 0.21 W/kg for all
joint powers. The two centres showed very similar normative standard deviations.
The data demonstrates a high degree of consistency between data from two highly
regarded gait analysis services and establishes a baseline against which other
services can assess their performance. An electronic appendix includes data to
facilitate this comparison.
CI - Copyright (c) 2014. Published by Elsevier B.V.

Langue : ANGLAIS