EMG of Gait Under Dual-Task in Parkinson Desease (EMG-DT-PD)

Inclusion Criteria:

• Ability to walk independently for at least 5 meters, both forward and backward, without the need for assistive devices or assistance from another person.
• Diagnosis of idiopathic Parkinson's disease made by a neurologist at Hospital Virgen Macarena.
• Hoehn and Yahr stage I-III.
• Being in the "ON" phase of antiparkinsonian medication during the assessment (approximately one hour after intake, when the pharmacokinetic curve of levodopa reaches its peak).

Exclusion Criteria:

• Presence of symptomatic musculoskeletal disorders affecting the lower limbs (LL) (relevant orthopedic surgery or leg length discrepancy > 1 cm), or other neurological conditions (stroke, neuropathies, etc.) that independently affect gait.
• Balance disorders due to other causes (vestibulopathy, severe orthostatic hypotension, etc.).
• Decompensated systemic diseases (cardiac disease, COPD, uncontrolled diabetes mellitus, etc.).
• Uncorrected visual impairments that may affect gait performance.
• Previous treatment with deep brain stimulation.