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Benefits and Barriers to and Desired Outcomes with Exercise in Patients with ESKD.

BACKGROUND AND OBJECTIVES: Patients with ESKD are sedentary. When patient-identified barriers to exercise are addressed, recruitment and retention in exercise trials remain low, suggesting that the trial design may not resonate with them. Therefore, we conducted a survey of patients on dialysis to assess perceived benefits and barriers to exercise and discover preferred outcomes and exercise type by dialysis modality and age in anticipation of designing future randomized, controlled trials.

DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: English- and French-speaking patients with ESKD treated with hemodialysis or peritoneal dialysis were recruited from two tertiary care hospitals in Ottawa and Montreal, Canada. Summary descriptive statistics were used to describe patient responses; then, they were separated by dialysis modality and age category.

RESULTS: The survey was completed by 423 participants. Current activity levels were similar across modalities ( P =0.35); 78% of younger patients walked at least 10 minutes at a time on 3 or more days compared with only 58% of older patients ( P =0.001). The two most desired benefits of exercise were improved energy (18%) and strength (14%). The third priority differed, such that improved sleep, maintenance of independence, and longevity were selected by patients on peritoneal dialysis, patients on in-center hemodialysis, and patients on home hemodialysis, respectively. Older patients were most interested in improvements in energy, strength, and maintenance of independence, whereas younger patients were interested in improving energy, longevity, and transplant candidacy. Only 25% of patients were able to exercise without difficulty; the major barriers for the remaining patients were feeling patients were feeling too tired (55%), short of breath (50%), and too weak (49%). If patients were to exercise, they wanted to exercise at home (73%) using a combination of aerobic and resistance training (41%), regardless of modality or age category.

CONCLUSIONS: The majority of patients undergoing maintenance dialysis in two tertiary hospitals in Ottawa and Montreal report similar desired outcomes and barriers, with greater differences by age category than modality.

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