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External focus improves postural stability in patients with Parkinson's disease
Date:3/26/2009

ALEXANDRIA, VA Patients with Parkinson disease may be able to improve their postural stability by directing their attention to the external effects of their movements rather than to the movements of their own body, according to a study published in the February 2009 issue of Physical Therapy, the scientific journal of the American Physical Therapy Association (APTA).

Adults with Parkinson disease are at greater risk for posture and balance impairments. These conditions may lead to falls, resulting in head injuries and fractures, which can end with hospitalization and further mobility limitations. Approximately 90 percent of people with Parkinson disease will fall at some point during their lives.1 In the past 12 months, two-thirds of patients with Parkinson disease reported a fall.2

According to physical therapist researcher and APTA spokesperson Merrill Landers, PT, DPT, OCS, "of the major motor signs of Parkinson disease, postural instability is the least responsive to medication. It is crucial that physical therapists continue to develop effective rehabilitation strategies to address this issue."

Lead researcher Gabriele Wulf, PhD, and her team observed 14 adults with idiopathic Parkinson disease as they balanced on an unstable surface (an inflated rubber disk) under three attentional focus conditions -- external focus, internal focus, and a control condition.

Patients were instructed to either focus on reducing movements of the rubber disk (external focus) or movements of their feet (internal focus), or they were not given attentional focus instructions (control condition). The results were consistent with previous findings on attentional focus, which showed that directing attention to the effects of an individual's movement on the environment (external focus) improved postural stability, compared with internal focus and control conditions, during standing for individuals with Pa
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Contact: Stephanie Block
stephanieblock@apta.org
703-706-3397
American Physical Therapy Association
Source:Eurekalert

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