OBJECTIVE: To evaluate the effect of intradialytic cycling exercise on physical functional performance with gain in muscle strength and endurance in end-stage renal disease patients with haemodialysis. DESIGN: Randomized controlled trial, with repeated measurements at baseline and after 4, 8, and 12 weeks of intradialytic cycling exercise. SETTING: A 50-bed haemodialysis centre in a regional hospital in Taiwan. SUBJECTS: Seventy-six regular haemodialysis patients, recruited and equally and randomly assigned to exercise and control groups. INTERVENTION: The intradialytic cycling exercise was performed for 12 weeks and comprised warm-up, main, and cool-down exercise phases. A stationary cycling equipment was used, which involved aerobic and resistance modalities. The intensity was maintained at somewhat hard exertion. Each intradialytic cycling exercise was implemented for 30 minutes, starting at the second hour of treatment. MAIN MEASURE: Measured outcomes were 6-minute walk distance, time taken to complete 10 sit-to-stand-to-sit cycles and number of sit-to-stand-to-sit cycles in 60 seconds. RESULTS: Average (standard deviation) participant age was 55.47 (13.00) years. Therefore, the 6-minute walk distance was significantly different at weeks 8 (p = 0.01) and 12 (p < 0.001) in the exercise group compared with that in the control group at baseline. Notably, sit-to-stand-to-sit outcomes (p = 0.01) significantly influenced the 6-minute walk distance. Sit-to-stand-to-sit outcomes significantly improved in the exercise group (p < 0.05). CONCLUSION: Twelve-week intradialytic exercise for patients on haemodialysis can improve physical functional performance with gain muscle strength and endurance. This is a safe and effective method for improving health.

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