Turning in Parkinson's disease patients and controls: The effect of auditory cues

Willems, Anne-Marie, Nieuwboer, Alice, Chavret, F., Desloovere, Kaat, Dom, René, Rochester, Lynn, Kwakkel, Gert, van Wegen, Erwin and Jones, Diana (2007) Turning in Parkinson's disease patients and controls: The effect of auditory cues. Movement Disorders, 22 (13). pp. 1871-1878. ISSN 0885-3185

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Abstract

Turning is an impaired activity in persons with Parkinson's disease (PwPD). The current study examines the turning characteristics in PwPD (9 freezers and 10 nonfreezers) and 9 controls, and explores the effect of rhythmic auditory cues while turning. Turning parameters were collected from a 180° left U-turn during a noncued and a cued condition, using a 3D measuring system. Auditory cues were supplied with a metronome at a rhythm equaling the subject's comfortable step frequency during straight line walking. Results showed that in contrast to controls, PwPD used a wider turning-arc and took smaller, narrower steps. In addition, they demonstrated a higher Coefficient of Variation (CV) of step duration (6.92%) compared to controls (4.88%, P < 0.05). The “wide-arc” turning strategy of PwPD was more prominent in freezers than in nonfreezers. Auditory cues reduced the CV of step duration in PwPD (both freezers and nonfreezers) during turning (from 6.92 to 6.00%, P < 0.05). In summary: Cueing reduced the gait-timing variability during turning, but PwPD maintained a wider arc to turn compared with controls.

Item Type:	Article
Uncontrolled Keywords:	Parkinson's disease, gait, turning, freezing, cueing
Subjects:	A900 Others in Medicine and Dentistry
Department:	Faculties > Health and Life Sciences > Social Work, Education and Community Wellbeing
Depositing User:	Ay Okpokam
Date Deposited:	12 Mar 2012 15:02
Last Modified:	12 Oct 2019 14:38
URI:	http://nrl.northumbria.ac.uk/id/eprint/5686

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