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Exercise interventions in Huntington's disease: An individual patient data meta-analysis

Playle, Rebecca, Dimitropoulou, Polyxeni, Kelson, Mark, Quinn, Lori and Busse-Morris, Monica 2019. Exercise interventions in Huntington's disease: An individual patient data meta-analysis. Movement Disorders Clinical Practice 6 (7) , pp. 567-575. 10.1002/mdc3.12809
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Abstract

Background: Physical activity may be beneficial in Huntington's disease, however studies to date have been underpowered to detect change. We combined data from five randomized controlled feasibility trials using individual patient data meta‐analyses. Methods/Design: All trial interventions comprised a combination of supervised and self‐directed physical activity, with varied emphasis on aerobic, strength, endurance, flexibility, and task training. Duration ranged from eight to 16 weeks. The primary outcome was the modified Unified Huntington's Disease Rating Motor Score. Secondary outcomes included the Symbol Digit Modality Test, Berg Balance Scale, 30‐second Chair stand, Timed Up and Go, Gait speed, Physical Performance Test, six‐minute Walk, International Physical Activity Questionnaire, Hospital Anxiety and Depression Scale, EuroQol Health Utility Index, Short‐Form 36 Health Related Quality of Life Scale. The primary analysis employed a two‐stage approach. A one‐stage approach was explored as a sensitivity analysis using a cross‐classified (by study site) linear mixed effects model. Results: 121 participants provided complete data. Risk of bias was moderate; however primary outcomes were blind assessed. Primary pooled effect estimates adjusted for baseline modified motor score (95% CI) were 0.2 (‐2.1 to 2.6) favoring control. There was considerable heterogeneity between the studies. Conclusions: There was no evidence of an exercise effect on the modified motor score in these relatively short duration interventions. Longer duration trials incorporating supervised components meeting frequency, intensity, time and type principles are required. Lack of common outcomes limited the analysis and highlight the importance of a core outcome set for evaluating exercise in Huntington's disease.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Centre for Trials Research (CNTRR)
Publisher: Wiley
ISSN: 2330-1619
Date of First Compliant Deposit: 17 June 2019
Date of Acceptance: 7 June 2019
Last Modified: 30 Nov 2019 05:58
URI: http://orca-mwe.cf.ac.uk/id/eprint/123491

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