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Abstract
Introduction: End stage kidney disease causes fatigue and progressive muscle weakness, which affects not only the muscles of extremities, but also the respiratory. There are several studies of combined training in dialysis patients, but not including respiratory work. Therefore, the present study aims to determine the effectiveness of an aerobic, lower limb resistance and inspiratory muscle resistance combined training in the generation of changes in aerobic performance of patients undergoing hemodialysis.
Material and methods: Randomized controlled trial which included 11 hemodialysis patients from Valdivia’s Central Hospital. The sample was divided in two groups, the first one included: an aerobic, lower limbs and inspiratory muscle training (ARM+V) (n=6) and the second one included an aerobic and lower limbs muscle training (ARM) (n=5). The training was performed during 8 weeks and three variables were measured in both groups pre and post intervention, inspiratory muscle strength (Carefore Airlift NIF-gauge ®), aerobic endurance (6MWT) and pulmonary function (Sibelmed Datospir Micro Spirometer 120D ®).
Results: ARM+V group obtained significant improvements (p<0.05) in 6MWT performance (p=0.027) and MIP (p=0,001). Likewise performance improved in 6MWT (p=0.022) and MIP (p=0.002) at ARM group, but decreased in spirometry values: FEV1 (p=0.004), FVC (p=0.005) and FEV1/FVC (p=0,038).
Conclusion: Both training protocols were effective in the aerobic endurance improvement, however the patients in the ARM+V group presented better changes than the ARM group. Neither of the two training programs improved pulmonary function.