The University of Southampton
University of Southampton Institutional Repository

Postural instability during reaching tasks in Parkinson's disease

Stack, Emma, Ashburn, Ann and Jupp, Kate (2005) Postural instability during reaching tasks in Parkinson's disease Physiotherapy Research International, 10, (3), pp. 146-153. (doi:10.1002/pri.4).

Record type: Article

Abstract

Background and Purpose. Reaching, like turning and rising from sitting, is an activity commonly associated with falls by people with Parkinson's disease. We set out to: (a) identify how people with moderate and severe Parkinson's disease performed high and low reaches and (b) to explore in detail the standard functional reach (functional reach) test and the fall histories of those who appeared unstable when reaching.
Method. In this cross-sectional study, people with moderate or severe Parkinson's disease (Hoehn and Yahr Grade III or IV) were video-recorded at home, reaching above shoulder height and below knee level. Blinded observers rated stability, alignment, foot position, floor contact, use of support and reach type. Functional reach was also measured and participants were interviewed about falls.
Results. Of 51 participants, 33 (65%) had moderate Parkinson's disease and 18 (35%) severe. A greater proportion of the latter used support when reaching high (p = 0.029) and aligned forward when reaching low (p = 0.015); otherwise, strategies were similar across groups. Six people (all with severe Parkinson's disease) appeared unstable when reaching: they had a shorter functional reach than the others (median 10 cm versus 18 cm; p = 0.042) and had fallen frequently (median five falls in a year), although rarely when reaching.
Conclusions. Reaching tasks challenge postural stability in severe Parkinson's disease. People who appear unstable when reaching are likely to be repeat-fallers and at risk of further falls during more demanding activities. Research should address whether discouraging potentially destabilizing manoeuvres (such as squatting and toe-standing) and promoting safety-enhancing strategies (such as using support and facing forward), with or without balance retraining, reduces the risk of falling among people with severe Parkinson's disease.

Full text not available from this repository.

More information

Published date: 2005
Keywords: disease, falls, parkinson's disease, postural stability

Identifiers

Local EPrints ID: 18055
URI: http://eprints.soton.ac.uk/id/eprint/18055
ISSN: 1358-2267
PURE UUID: 9146c05a-7053-408f-9f84-40a9a46aac3c

Catalogue record

Date deposited: 30 Jan 2006
Last modified: 17 Jul 2017 16:37

Export record

Altmetrics

Contributors

Author: Emma Stack
Author: Ann Ashburn
Author: Kate Jupp

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×