Effects of an additional resistance training intervention in hemodialysis patients performing long-term ergometer exercise during dialysis

[Purpose] To verify the effect of a 12-week additional resistance training intervention in patients on hemodialysis who had been performing supine ergometer exercises alone during dialysis. [Participants and Methods] Overall, 18 patients undergoing hemodialysis were included. A 12-week intervention with additional resistance training was conducted in hemodialysis patients who had been performing supine ergometer exercise for 30 min during dialysis for over >3 months. Physical function before and after the period of bicycle ergometer exercise alone and before and during the additional intervention was compared. Resistance training consisted of 1–3 sets per day of five different exercises for the large muscle groups of the upper and lower limbs. [Results] The results of the 6-min walk test improved significantly after the additional intervention. The average driving distance in the supine ergometer exercise during the additional intervention was identified as an associated factor. [Conclusion] The addition of the resistance training to long-term supine ergometer exercisers improved walking endurance. When supine ergometer exercise alone does not change physical function, the additional use of resistance training subsequently may have a positive effect on walking endurance.