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Abstract Title:

Effect of Exercise on Parkinson's Disease Tremor: A Meta-analysis Study.

Abstract Source:

Tremor Other Hyperkinet Mov (N Y). 2021 Apr 27 ;11:15. Epub 2021 Apr 27. PMID: 33981478

Abstract Author(s):

Sajjad Farashi, Leila Kiani, Saeid Bashirian

Article Affiliation:

Sajjad Farashi

Abstract:

Background: Prior studies suggest that exercise may prevent movement disorders in Parkinson's disease (PD) patients. In this meta-analysis, the pooled effect of exercise on PD-induced tremor was investigated.

Method: Relevant published studies (n = 7) were retrieved by searching major databases, including Scopus, Web of Science and PubMed from 1985 to November 2020. Studies were eligible if the effect of exercise on PD-induced tremor was studied and sufficient information for calculating the effect size was reported. Furthermore, non-English manuscripts and studies related to non-human species were excluded. The quality of studies was evaluated using the improved Newcastle-Ottawa scale (NOS). In this study, variables such as participant's age and gender, type of exercise, intervention duration and tremor indices were extracted for each study. Between-study heterogeneity and publication bias were calculated using Istatistic and funnel plot, respectively.

Results: Results showed that hand movement and cycling exercises were effective for reducing tremor amplitude or frequency. When all types of exercises (upper, lower or whole-body movement) were considered, an odds ratio (OR) greater than 1 was obtained (log(OR) = 2, 95% CI: 0.88-3.12), while between-study heterogeneity was high (I= 78%). By restricting the studies to hand-movement exercises, a lower odds ratio (log(OR) = 1, 95% CI: 0.24-1.77) with small between-study heterogeneity (I= 0.0%, p = 0.502) was obtained. Statistical analysis based on Egger's and Begg's tests revealed no significant publication bias.

Conclusions: Outcomes of this study suggested that exercises as inexpensive, non-invasive and easy-to-implement strategies could be applied for PD patients alongside medical interventions for reducing tremors.

Clinical Highlights: Exercises reduce tremors in Parkinson's disease patients significantly.Hand movement exercises are beneficial for reducing tremors in PD patients.

Study Type : Human Study

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