Article

Weight bearing asymmetry (WBA) during dynamic tasks is prevalent in a variety of
clinical populations. However, accurate measurement has previously been out of
reach of the clinician due to the costly equipment and technical expertise
required. The aim of this study was to assess the test-retest reliability of WBA
data obtained using an inexpensive and simple to use dual force plate system
incorporating unmodified Nintendo Wii Balance Boards (NWBB) and customized
software. A secondary outcome measure, individual limb COP path velocity, which
represents the postural sway under each limb was also examined. Twenty-three
participants performed squats both with and without visual WBA feedback on two
separate occasions. Weight-bearing asymmetry as a percentage of body mass and
individual limb center of pressure (COP) path velocity were recorded during these
trials, with intraclass correlation coefficient (ICC(2,1)) analysis performed to
assess test-retest reliability. This system provided reliable values for both
outcome measures when performed with and without real-time visual feedback of WBA
(ICC(2,1) range=0.75-0.91). In conclusion, recording WBA and COP path velocity
data using NWBB is reliable. Given that tens of millions of NWBB have been sold
worldwide, and that reprogramming them for clinical purposes is within the reach
of most software developers, similar systems may soon become commonplace in the
clinical setting. - AVC -
CI - Copyright (c) 2011 Elsevier B.V. All rights reserved.

Langue : ANGLAIS