Robotic Assisted Early Mobilization in Ventilated ICU Patients With COVID-19

Inclusion Criteria: * Age ≥ 18 years * Invasive mechanically ventilated and expected to be ventilated for another 24 hours * Cardiovascular stability, allowing mobilization * Respiratory stability, allowing mobilization Exclusion Criteria: * Bed-bound before ICU admission * Bed-rest order or contraindication of weight load of the lower extremity or spine * Severe skin lesions or fasciitis in the area of contact with the device or rhabdomyolysis * Fresh SAB, ICB or elevated ICP * Status epilepticus * Acute intoxication * Shock with catecholamine doses \>0.3μg/kg/min or acute bleeding including organ ruptures * Multiorgan failure with lactate \> 4 mmol/l * Body height outside the range 150-195 cm * Body weight outside the range 45-135 kg * pAVK IV° * Pacemakers or other electrical stimulators * Implanted medical pumps * Pregnancy * Life expectancy below 7 days or acute palliative care situation * Death inevitable or maximum therapy is not carried out by the treating physicians or due to patient's request * Unable to understand the official language