Detection of Internal Tremors by Oscillometry in Parkinson's Patient

Who May Qualify: (For the experimental group) - Patient with idiopathic parkinson's disease - Mini Mental State Evaluation score above or equal to 25 - Hoehn and Yahr scale score of ≤3 in the OFF phase, with postural stability allowing the patient to stand unaided for 1 minute. - Able to walk unassisted - Willing to undergo accelerometry in the OFF state (For the control group) - Healthy volunteer subjects matched for age (+/- 5 years) and sex - Mini Mental State Evaluation score above or equal to 25 Who Should NOT Join This Trial: (For the experimental group) - Patients with an atypical parkinsonian syndrome - Patients unable to walk or stand for more than one minute in the off state - Parkinson's patients treated with deep brain stimulation, apomorphine pump, or duodopa intestinal infusion, and foslevodopa - Pregnant patients - Major osteoarticular problems - Neurological condition that may affect gait (For the control group) - Participants with significant gait impairment (osteoarticular disorder) - Those with a neurological disease that, in the investigator's judgment, may interfere with the study's outcome measure - Participants with a clinical tremor that may interfere with the measurement of the primary outcome (e.g., essential tremor, thyroid disease, or tremors induced by medication) - Pregnant participants Always talk to your doctor about whether this trial is right for you.