Plasma Biomarkers of Muscle Metabolism During Exercise to the Assessment of Insulin Resistance in CKD Dialysis Patients

"Metabolic effort test on cycloergometer with gas measurement. Gas exchanges (V'O2 and V'CO2) will be measured cycle-by-cycle using a gas analyzer connected to a flow meter Measurements will be taken every 6 minutes, at rest and during exercise on a cycloergometer, in five 6-minute increments, corresponding to intensities of 0% (rest), 20%, 30%, 40%, 50 and 60% of the subject's estimated maximum power, for a total duration of around 45 minutes."

"A catheter will be placed in a forearm vein to take blood samples at rest and at the end of the 5-stage stress test.~Sampling times synchronized with stress test measurements"

measurement of anthropometric data (weight, height, waist circumference). impedancemetry will enable body composition to be analyzed by placing surface electrodes on the body. The participant will lie on an examination table and must remain at rest for 5 minutes.