Evaluation of a Hybrid Prototype Strategy (Electrostimulation of Lower Limb Muscles Associated With Voluntary Strengthening of the Upper Limbs) in Reconditioning to Effort in Patients With Chronic Paraplegia.

Inclusion Criteria: * Male or female patients with paraplegia, ageb between 18 and 45 years * Body mass index (BMI) between 18.5 and 29.9 * 2 to 15 years after the accident, ASIA A or B, lesion situated between T3 and T12 * Medically stable * Able to follow instructions * Persons who have provided written informed consent Exclusion Criteria: * Persons without national health insurance cover * Arterial blood pressure \> 140/90 mmHg, arrythmia, heart disease, diabetes, impaired kidney function, cancer * smoking-induced intoxication, * Medical treatment for cardiovascular disease or antidepressants * Orthostatic hypotension with a symptomatic fall in arterial pressure \> 30 mmHg in the vertical position * Grade 2 or more pressure sores * Other associated neurological diseases (e.g. cerebrovascular accident, peripheral neuropathy, myopathy) * Any disease affecting the shoulder that may compromise the ability to use the rowing machine. * Coagulation disorders; * Presence of an implanted electronic device * Epilepsy