Does a pilot resistance training exercise program for haemodialysis patients increase dietary intake and quality of life?

Objective: To determine the impact of progressive resistance training for haemodialysis patients on dietary intake, body composition and quality of life. Design: A pilot uncontrolled intervention study, with subjects recruited from two satellite haemodialysis units. Fourteen patients enrolled in the study, with six patients completing the full 24-week exercise program. Intervention: A thrice-weekly, individualised, progressive resistance training program was provided to eligible consenting patients. Patients performed upper and lower body training before and during their usual dialysis treatment for 24 weeks. Main outcome measures: Dietary intake and nutritional status was assessed using a diet history, the Appetite and Diet Assessment Tool (ADAT) and Subjective Global Assessment (SGA). Body composition was assessed using DEXA scan. Muscular endurance was assessed using standard assessment measures. Quality of life was assessed using the Short Form 36 (SF-36) Quality of Life Tool. Routine biochemical parameters were also recorded for all patients. Results: Compliance to the exercise program among completers was 95.7%. This program was associated with statistically significant improvements to muscle mass, upper body strength, social functioning and vitality. Mental health subcomponent scores significantly decreased after 24 weeks. Clinical but not statistically significant improvements to dietary intake, body fat and appetite were seen. Some biochemical parameters (calcium phosphate product, phosphate) also saw clinically significant improvements. Conclusion: A pilot resistance training was associated with improvements in body composition, dietary intake and quality of life.