Abstract
Objective: The aim of the present study was to systematically evaluate and quantify the effectiveness of dual-task training on gait parameters, motor symptoms and balance in individuals diagnosed with Parkinson’s disease. Data resources: A systematic review of published literature was conducted until May 2020, using PubMed, EMBASE, Cochrane Library, Web of Science, EBSCO and CNKI databases. Methods: We included randomized controlled trials (RCTs) and non-RCTs to evaluate the effects of dual-task training compared with those of non-intervention or other forms of training. The measurements included gait parameters, motor symptoms and balance parameters. Methodological quality was assessed using the PEDro scale. Outcomes were pooled by calculating between-group mean differences using fixed- or random-effects models based on study heterogeneity. Results: A total of 11 RCTs comprising 322 subjects were included in the present meta-analysis. Results showed that dual-task training significantly improved gait speed (standardized mean difference [SMD], −0.23; 95% confidence interval [CI], −0.38 to −0.08; P = 0.002), cadence (SMD, −0.25; 95% CI, −0.48 to −0.02; P = 0.03), motor symptoms (SMD, 0.56; 95% CI, 0.18 to 0.94; P = 0.004) and balance (SMD, −0.44; 95% CI, −0.84 to −0.05; P = 0.03). However, no significant changes were detected in step length or stride length. Conclusion: Dual-task training was effective in improving gait performance, motor symptoms and balance in patients with Parkinson’s disease relative to other forms of training or non-intervention.
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