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Abstract

International Journal of Exercise Science 15(2): 434-441, 2022. Considering that the hemodynamic safety is a major concern about intradialytic exercise with blood flow restriction, this analysis was performed to compare the blood pressure (BP) behavior during the first two hours of hemodialysis (HD) between sessions with no exercise (control group, CG), low/moderate intensity aerobic exercise with blood flow restriction (BFRE) and conventional aerobic exercise (AE). Adult patients with chronic kidney disease on HD at a university hospital were randomly assigned and submitted to a 12-week intradialytic training with BFRE or AE compared with the CG group. The main outcomes of this report were the change in systolic (SBP) and diastolic (DBP) BP during HD and the frequency of low BP (LBP) and high BP (HBP) episodes. A total of 6,074 BP measurements of 58 patients were analyzed. There was a larger decrease in BP in the exercise sessions compared with the control sessions, but with a similar magnitude in the BFRE and AE groups (effect size 0.49). There was a higher number of LBP in the BFRE group. The frequency of HBP was similar between the BFRE and the CG groups and lower in the AE group. Despite a greater number of mild LBP in BFRE patients, the BP change during the first two hours of HD was similar to that of patients in AE. Intradialytic aerobic exercise with blood flow restriction does not seem to be associated with a higher hemodynamic burden than conventional aerobic exercise.

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