* patients with movement resistance * walking without assistance before the icu (except using a cane) * cognitive impairment before acute illness * signs of intracranial hypertension, neuromuscular disease (myasthenia gravis, amyotrophic lateral sclerosis, guillain-barré) and stroke; hip fracture, unstable cervical spine, or pathological fracture * prior hospitalization (30 days before icu) * readmission to the icu, within the current hospitalization * presence of an implanted cardiac pacemaker or defibrillator, pregnancy, acute myocardial infarction and, for the experimental group (eg), against indications for nmes (deep vein thrombosis, skin lesions, rhabdomyolysis).

* patients with movement resistance * walking without assistance before the icu (except using a cane) * cognitive impairment before acute illness * signs of intracranial hypertension, neuromuscular disease (myasthenia gravis, amyotrophic lateral sclerosis, guillain-barré) and stroke; hip fracture, unstable cervical spine, or pathological fracture * prior hospitalization (30 days before icu) * readmission to the icu, within the current hospitalization * presence of an implanted cardiac pacemaker or defibrillator, pregnancy, acute myocardial infarction and, for the experimental group (eg), against indications for nmes (deep vein thrombosis, skin lesions, rhabdomyolysis).

patients with movement resistance walking without assistance before the icu (except using a cane) cognitive impairment before acute illness signs of intracranial hypertension, neuromuscular disease (myasthenia gravis, amyotrophic lateral sclerosis, guillain-barré) and stroke; hip fracture, unstable cervical spine, or pathological fracture prior hospitalization (30 days before icu) readmission to the icu, within the current hospitalization presence of an implanted cardiac pacemaker or defibrillator, pregnancy, acute myocardial infarction and, for the experimental group (eg), against indications for nmes (deep vein thrombosis, skin lesions, rhabdomyolysis).

patients with movement resistance walking without assistance before the icu (except using a cane) cognitive impairment before acute illness signs of intracranial hypertension, neuromuscular disease (myasthenia gravis, amyotrophic lateral sclerosis, guillain-barré) and stroke; hip fracture, unstable cervical spine, or pathological fracture prior hospitalization (30 days before icu) readmission to the icu, within the current hospitalization presence of an implanted cardiac pacemaker or defibrillator, pregnancy, acute myocardial infarction and, for the experimental group (eg), against indications for nmes (deep vein thrombosis, skin lesions, rhabdomyolysis).