Early Mobilization in Ventilated SEpsis & Acute Respiratory Failure Study

Inclusion Criteria:You can participate in this clinical trial only if you meet all of the following criteria within 48 hours of ICU hospitalization. * Those who voluntarily consent to participate in this clinical trial * Those who are over the age of 18 years * Patients who require mechanical ventilation for acute respiratory failure and sepsis (non-malignant tumor patients; excluding non-invasive mechanical ventilation and high-flow oxygen therapy) * Patients with a Clinical Frailty Scale score of 1-4 points (physical condition prior to entering the ICU) * Patients whose mechanical ventilation treatment is expected to last for more than 48 hours (evaluated at the time of study enrollment). However, if the patient has already begun mechanical ventilation treatment at another hospital, the time of airway intubation serves as the reference point. If it is difficult to confirm the exact time, the time of hospitalization is used as the reference point. Exclusion Criteria: * Patients with brain damage, psychiatric illness, or cognitive impairment making evaluation difficult * Patients who are contraindicated for mobilization (active bleeding, deep vein thrombosis, increased brain pressure, open abdomen, iliac fracture, etc. * Patients who do not meet the screening criteria for mobilization (however, if the ICU rehabilitation multidisciplinary team determines that mobilization can be started even if the patient does not meet the screening criteria below, the patient can be inclu…