Rational & ObjectiveMajority of people with end stage kidney disease (ESKD) are sedentary, which increases risk for decreased quality and quantity of life. Development of exercise programs with characteristics that address individual preferences may increase interest in participating and completing exercise programs. We evaluated which exercise intervention characteristics impact exercise program recruitment, adherence and completion in people with ESKD receiving dialysis. Study DesignScoping review of randomized controlled trials (RCTs) with searching of Medline, Embase, Cochrane and CINAHL databases through May 12, 2023. Setting & Study PopulationsAdults with ESKD on dialysis. Selection CriteriaRCTs with exercise interventions of ≥12 weeks that included more than 10 people with ESKD receiving dialysis in each study arm Data ExtractionOne individual extracted data and the second author checked for accuracy. Analytical ApproachData was synthesized qualitatively. Associations between intervention characteristics and recruitment, retention and adherence rates were assessed through One-way ANOVA tests. Risk of bias was assessed using the Cochrane Risk of Bias 1.0 tool. FindingsOf 7396 studies identified, 55 studies with 3269 trial participants were included. The majority of participants were male (63.2%) and treated with hemodialysis (89.1%). Mean age was 56 ± 11.5 years. Average recruitment, retention and adherence rates were 77.4%, 81.2% and 76.0% respectively. Only 27% of studies reported adherence rates. No significant associations were found between intervention characteristics (i.e. exercise type, duration, frequency, setting and supervision) and recruitment, adherence and retention rates. LimitationsData were limited by small sample size, suboptimal risk of bias, selective recruiting methods and variability in definitions of adherence rates. ConclusionAverage recruitment, retention, and adherence rates in exercise interventions for patients on dialysis were high although less than one in four studies reported adherence rates. These results call for standardized reporting of recruitment, retention, and adherence rates in exercise interventions.
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