About this trial
To improve aerobic capacity, muscular function, and health-related quality of life in patients with end-stage renal disease (ESRD), regular exercise is recommended. Supervised intradialytic exercise at moderate intensity is a viable approach to ensure patient safety, maintain compliance, and effectively enhance physiological adaptations. However, the impact of exercise training on erythrocyte rheological properties in ESRD patients, such as red blood cell deformability, aggregation, and oxygen transport capacity, remains unclear.
Method: ESRD patients (anticipated n=180) will undergo supervised exercise training therapy three times per week for six months in the hospital, followed by three months at home. Cardiopulmonary exercise tests will be conducted before and after the intervention. Erythrocyte deformability and aggregation will be assessed using a laser-assisted optical rotational cell analyzer (LORCA), while additional protein levels and reactive oxygen species (ROS) status will be measured using a flow cytometer. This will help determine how exercise affects the rheological properties of red blood cells in this population.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Receiving hemodialysis and medication at least for 6 weeks
Kt/V score > 1.2
Disqualifiers
Under 20 years-old
Hyperkalemia occurs within 3 month
Having orthopedic or muscular diseases
Other concerned medical, psychological or physiological diseases
Trial design
Parallel
Treatments tested in this trial
Supervised exercise training
BehavioralParticipants perform Intradialytic cycling exercise training in the hospital for 6 months (24 weeks) and 3 months (12 weeks) at home. Exercise prescription: 50-60% maximal workload for 20-30 minutes, including low intensity warm-up and cool down (30% of maximal workload).
Treatment groups
Trial outcomes
Primary outcomes
Deformability of erythrocytes
Red blood cells (RBCs) deformability refers to the cells' ability to adapt their shape to the dynamically changing flow conditions so as to minimize their resistance to flow.
Aggregation of erythrocytes
Erythrocyte aggregation is the reversible clumping of red blood cells (RBCs) under low shear forces or at stasis.
Secondary outcomes
Cardiopulmonary fitness
ESRD patients performed cardiopulmonary exercise testing (CPET) to assess their aerobic capacity. CPET composed of continuous workload increment of 10 W/min until exhaustion (usually within 8-12 minutes). Oxygen consumption, carbon dioxide production, ventilation, respiratory rate would be recorded.
Quality of life in ESRD patients
The investigators would use a qusionnaire, The Kidney Disease Quality of Life 36-item short form survey (KDQOL-36), to record and scale the qulaity of life in ESRD patients. The KDQOL-36 (Kidney Disease Quality of Life 36-Item Short Form Survey) measures the quality of life in kidney disease patients. It uses a score range from 0 to 100, where higher scores indicate better quality of life and lower scores indicate worse outcomes. Ensure to note this when reporting results to clarify that higher scores reflect fewer symptoms and better overall well-being.
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