Effects of exercise programs on physical function and activity levels in patients undergoing hemodialysis: a randomized controlled trial

BACKGROUND: There are still many barriers when implementing exercise routines within daily dialysis care, even though benefits are well-known. Developing cost-effective strategies is necessary to overcome these barriers and include exercise as a complementary therapy in dialysis. AIM: To compare several exercise programs on hemodialysis patient’s functional capacity and health-related quality of life. DESIGN: This study was a 16-week follow-up, two-parallel group trial with balanced randomization. SETTING: Participants in this study belonged to a private hospitalized care center. POPULATION: Referred sample of 71 patients that suffered end-stage chronic kidney disease who underwent hemodialysis for at least 3 months and had a medical stable condition. METHODS: Thirty-six participants performed for 16 weeks an intradialytic exercise program lead by the nursing staff of the hemodialysis unit and 35 a home-based program supervised by physical therapists of the hospital. RESULTS: The main researcher and the data analyst were both blinded to participant allocation. There was a significant effect in time for both groups. Participants improved significantly in the Short Performance Physical Battery (SPPB), One-Leg Heel-Rise (OLHR) and 6 Minute-Walk Test (6MWT), and in the Physical Activity Scale for the Elderly (PASE) and Short Survey Form 36 (SF-36) questionnaires. CONCLUSIONS: Nurse-led and home-based exercise interventions produce beneficial effects involving physical function, activity levels and health-related quality of life in patients undergoing hemodialysis. CLINICAL REHABILITATION IMPACT: The study emphasizes the importance of exercise rehabilitation routines in fragile populations such as dialysis patients, and the potential to overcome barriers for its daily implementation.

This study was funded by the Sociedad Valenciana de Nefrología.