Effects of Low-to-medium Intensity Intradialytic Resistance Training in Elderly Chronic Hemodialysis Patients: Preliminary Effects after One Year of Intervention

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Objective: To analyze the effects of intradialytic resistance training on physical function in 8 hemodialysis patients aged ≥60 years. Method: Physical function, blood pressure, heart rate, and biochemical data were analyzed before and after 3 and 12 months of exercise therapy. Focusing on muscle strengthening of the trunk and legs while on bed rest, the exercise load of the intervention was individualized for each patient. Results: Significant differences were observed in ankle plantar flexor strength, the Timed Up and Go test, and maximum walking speed between before and after 3 months of intervention. However, no significant differences were observed from 3 to 12 months, indicating that there was no long-term improvement upon low-to-medium resistance training during hemodialysis. Conclusion: Further studies with increased sample sizes are required to elucidate the appropriate intensity, frequency, and duration for an effective resistance training program in this population.