Article

Previous research has shown that skill focused attention may be beneficial for
the performance of complicated motor tasks in individuals with Parkinson's
disease (PD). The objective of this study was to assess the impact of skill
focused attention instructions on gait under temporal movement constraints that
may reflect common challenges experienced in daily life. Eighteen patients with
PD walked a straight pathway under two different attention focus conditions (no
instruction, skill focused instruction) and two different walking speeds
(preferred pace, as fast as possible). In the no instruction condition, patients
were not told "where" attention should be directed. In the skill focused
instruction condition, patients were told to focus on the foot contacting the
floor with each step. Spatial and temporal gait measures, as well as, trunk sway
were used to quantify walking performance. The results showed that when walking
at a preferred pace, skill focused instructions benefited gait performance (e.g.,
increased gait velocity, larger steps, more trunk sway). However, when walking as
fast as possible, skill focused instructions had the opposite effect on gait
performance (e.g., decreased gait velocity, smaller steps, and less trunk sway).
This study demonstrates that skill focused instructions may contribute to the
prioritization of stability under imposed temporal movement constraints.
Clinicians should be aware of the processes involved in prioritization of
movement components versus task goals in PD and the potential application of an
attention based instructional set in altering priorities in this population.
CI - Copyright (c) 2010 Elsevier B.V. All rights reserved.

Langue : ANGLAIS