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January 20, 2015; 84 (3) Article

Exercise for falls prevention in Parkinson disease

A randomized controlled trial

Colleen G. Canning, Catherine Sherrington, Stephen R. Lord, Jacqueline C.T. Close, Stephane Heritier, Gillian Z. Heller, Kirsten Howard, Natalie E. Allen, Mark D. Latt, Susan M. Murray, Sandra D. O'Rourke, Serene S. Paul, Jooeun Song, Victor S.C. Fung
First published December 31, 2014, DOI: https://doi.org/10.1212/WNL.0000000000001155
Colleen G. Canning
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Catherine Sherrington
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Stephen R. Lord
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Jacqueline C.T. Close
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Stephane Heritier
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Gillian Z. Heller
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Kirsten Howard
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Natalie E. Allen
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Mark D. Latt
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Susan M. Murray
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Sandra D. O'Rourke
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Serene S. Paul
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Jooeun Song
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Victor S.C. Fung
From the Clinical and Rehabilitation Sciences Research Group, Faculty of Health Sciences (C.G.C., N.E.A., S.M.M., S.D.O., J.S.), The George Institute for Global Health, Sydney Medical School (C.S., S.S.P.), Sydney School of Public Health (K.H.), and Sydney Medical School (S.H., V.S.C.F.), The University of Sydney, Australia; Neuroscience Research Australia and University of New South Wales (S.R.L.), Sydney; Prince of Wales Clinical School, University of New South Wales, and Neuroscience Research Australia (J.C.T.C.), Sydney; Department of Epidemiology and Preventive Medicine (S.H.), Monash University, Melbourne; Department of Statistics (G.Z.H.), Macquarie University, and Statistics Division, The George Institute for Global Health, Sydney; Department of Aged Care (M.D.L.), Royal Prince Alfred Hospital, Sydney; and Movement Disorders Unit (V.S.C.F.), Department of Neurology, Westmead Hospital, Sydney, Australia.
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Citation
Exercise for falls prevention in Parkinson disease
A randomized controlled trial
Colleen G. Canning, Catherine Sherrington, Stephen R. Lord, Jacqueline C.T. Close, Stephane Heritier, Gillian Z. Heller, Kirsten Howard, Natalie E. Allen, Mark D. Latt, Susan M. Murray, Sandra D. O'Rourke, Serene S. Paul, Jooeun Song, Victor S.C. Fung
Neurology Jan 2015, 84 (3) 304-312; DOI: 10.1212/WNL.0000000000001155

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Abstract

Objective: To determine whether falls can be prevented with minimally supervised exercise targeting potentially remediable fall risk factors, i.e., poor balance, reduced leg muscle strength, and freezing of gait, in people with Parkinson disease.

Methods: Two hundred thirty-one people with Parkinson disease were randomized into exercise or usual-care control groups. Exercises were practiced for 40 to 60 minutes, 3 times weekly for 6 months. Primary outcomes were fall rates and proportion of fallers during the intervention period. Secondary outcomes were physical (balance, mobility, freezing of gait, habitual physical activity), psychological (fear of falling, affect), and quality-of-life measures.

Results: There was no significant difference between groups in the rate of falls (incidence rate ratio [IRR] = 0.73, 95% confidence interval [CI] 0.45–1.17, p = 0.18) or proportion of fallers (p = 0.45). Preplanned subgroup analysis revealed a significant interaction for disease severity (p < 0.001). In the lower disease severity subgroup, there were fewer falls in the exercise group compared with controls (IRR = 0.31, 95% CI 0.15–0.62, p < 0.001), while in the higher disease severity subgroup, there was a trend toward more falls in the exercise group (IRR = 1.61, 95% CI 0.86–3.03, p = 0.13). Postintervention, the exercise group scored significantly (p < 0.05) better than controls on the Short Physical Performance Battery, sit-to-stand, fear of falling, affect, and quality of life, after adjusting for baseline performance.

Conclusions: An exercise program targeting balance, leg strength, and freezing of gait did not reduce falls but improved physical and psychological health. Falls were reduced in people with milder disease but not in those with more severe Parkinson disease.

Classification of evidence: This study provides Class III evidence that for patients with Parkinson disease, a minimally supervised exercise program does not reduce fall risk. This study lacked the precision to exclude a moderate reduction or modest increase in fall risk from exercise. Trial registration: Australian New Zealand Clinical Trials Registry (ACTRN12608000303347).

GLOSSARY

CI=
confidence interval;
IRR=
incidence rate ratio;
NSW=
New South Wales;
PD=
Parkinson disease;
PIG=
Poisson inverse gaussian;
RR=
relative risk;
UPDRS=
Unified Parkinson's Disease Rating Scale

Footnotes

  • Go to Neurology.org for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Supplemental data at Neurology.org

  • Received March 25, 2014.
  • Accepted in final form September 29, 2014.
  • © 2014 American Academy of Neurology
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