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Efficacy and safety of intradialytic exercise in haemodialysis patients: a systematic review and meta-analysis [with consumer summary] |
Pu J, Jiang Z, Wu W, Li L, Zhang L, Li Y, Liu Q, Ou S |
BMJ Open 2019 Jan;9(1):e020633 |
systematic review |
OBJECTIVE: To assess the efficacy and safety of intradialytic exercise for haemodialysis patients. DESIGN: Systematic review and meta-analysis. DATA SOURCES: Databases, including PubMed, Embase, the Cochrane Library, China Biology Medicine and China National Knowledge Infrastructure, were screened from inception to March 2017. ELIGIBILITY CRITERIA: Randomised controlled trials (RCTs) aimed at comparing the efficacy and safety of intradialytic exercise versus no exercise in adult patients on haemodialysis for at least 3 months. A minimum exercise programme period of 8 weeks. DATA EXTRACTION: Study characteristics and study quality domains were reviewed. Studies were selected, and data extracted by two reviewers. DATA ANALYSIS: The pooled risk ratios and mean differences (MDs) with 95% CIs for dichotomous data and continuous data were calculated, respectively. RESULTS: A total of 27 RCTs involving 1,215 subjects were analysed. Compared with no exercise, intradialytic exercise increased dialysis adequacy (Kt/V) (MD 0.07, 95% CI 0.01 to 0.12, p = 0.02) and maximum volume of oxygen that the body can use during physical exertion peak oxygen consumption (MD 4.11, 95% CI 2.94 to 5.27, p < 0.0001), alleviated depression standardised mean difference (-1.16, 95% CI -1.86 to -0.45, p = 0.001) and improved physical component summary-short form-36 (SF-36) level (MD 7.72, 95% CI 1.93 to 13.51, p = 0.009). Also, intradialytic exercise could significantly reduce systolic blood pressure (MD -4.87, 95% CI -9.20 to -0.55, p = 0.03) as well as diastolic blood pressure (MD -4.11, 95% CI -6.50 to -1.72, p = 0.0007). However, intradialytic exercise could not improve mental component summary-SF-36 level (MD 3.05, 95% CI -1.47 to 7.57, p = 0.19). There was no difference in the incidence of adverse events between the intradialytic exercise and control groups. CONCLUSIONS: Intradialytic exercise resulted in benefits in terms of improving haemodialysis adequacy, exercise capacity, depression and quality of life for haemodialysis.
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