Diagnosis of Chronic Kidney Disease (CKD) or Rheumatoid Arthritis (RA), with no other risk factors related to the disease.
Having a glomerular filtration rate between 45 and 20 ml/min/1.73 m², corresponding to stages III and IV not on dialysis for patients with CKD ; or have a DAS 28 score ≥ 2.6 points for patients with RA.
Have a medical certificate stating that there are no adverse reactions to physical activity.
Affiliation with a French social security scheme or beneficiary of such a scheme.
Impaired higher functions making it impossible to understand and adhere to an aerobic exercise program
Inability to perform physical exercise, regardless of the cause (neurological, central or peripheral, cardiovascular or respiratory, or musculoskeletal)
Legal incapacity or limited legal capacity
Subject unlikely to cooperate with the study and/or low cooperation anticipated by the investigator
Subject without health insurance
Subject is in the exclusion period of another study involving human subjects that may interfere with the results of this study, particularly by affecting inflammatory status and the cardiovascular system.
