Article

Repeatability of marker placement has been acknowledged as a major
factor affecting the reliability of multi-segment foot models. A novel device is
proposed that is intended to reduce marker placement error and its effect on the
reliability of inter-segmental foot kinematic data is investigated. METHOD : The
novel device was tested on eight healthy subjects. Landmarks were identified and
indicated on the subject's foot at the start of testing using pen, and these
points were used to guide placement. Markers were twice attached by a podiatrist
using a standard approach, and twice by a researcher who used the novel device.
Replacement accuracy and the kinematic reliability of the foot model data for
both techniques were analysed. RESULTS: The mean marker placement variability
using the novel device placement device was 1.1mm (SD 0.28) compared to 1.4mm (SD
0.23) when using standard placement techniques. Results suggest that these
reductions in placement error tended to improve the overall reliability of the
multi-segment data from the foot model. DISCUSSION: The novel device is a simple
and inexpensive tool for improving the placement consistency of skin-mounted
markers.
CI - Copyright (c) 2010 Elsevier B.V. All rights reserved.

Langue : ANGLAIS