At a glance
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Effect of Intradialytic Exercise on Left Ventricular Diastolic Function in Hemodialysis Patients
In Brief
A clinical study evaluating Not exercise and Exercise during hemodiafiltration session for Renal Dialysis and 5 related conditions. Completed, enrolled 30 participants across 1 site.
Detailed Summary
Introduction: Cardiovascular disease is the leading cause of morbidity and mortality in patients undergoing hemodialysis, largely due to structural cardiac changes associated with left ventricular diastolic dysfunction. In addition, this population has a high prevalence of sedentary behavior, which has been associated with increased mortality. Recent studies in patients with chronic kidney disease have shown that structured exercise interventions improve several parameters related to cardiovascular health. Objectives: To evaluate the effect of implementing systematic intradialytic exercise on left ventricular diastolic function. Materials and Methods: This will be a quasi-experimental before-and-after study conducted in two phases. During the first phase (control), prevalent hemodialysis patients will receive standard treatment for 16 weeks. Transthoracic echocardiography will be performed at baseline and repeated at the end of this phase to assess left ventricular diastolic function parameters. During the second phase (intradialytic exercise), participants will undergo a 16-week supervised and prescribed intradialytic aerobic exercise program consisting of intradialytic cycling. Exercise intensity will be individualized according to cardiopulmonary exercise testing (CPET), which will be performed at the beginning and end of this phase. A final echocardiogram will be obtained at the end of the intervention phase. In addition, a 6-minute walk test and a validated physical activity questionnaire will be administered monthly throughout both phases of the study.
Study Details
Timeline
Interventions
Patients were instructed to discontinue any unstructured exercise previously performed during their hemodiafiltration sessions for 16 weeks. Hemodiafiltration sessions continued unchanged according to the center's standard of care.
A 16 weeks of Intradialytic exercise program that is performed using cycle ergometers during the hemodiafiltration session. Exercise intensity is quantified in watts using power meters and is individualized according to each participant's performance on cardiopulmonary exercise testing (CPET).