Lead Sponsor

National Taiwan University Hospital

Age

18 - 99 years

Sex

ALL

Healthy Volunteers

No

•Non-traumatic adult patients who experienced sudden cardiac arrest
•Achieved sustained return of spontaneous circulation (ROSC) for more than five minutes following successful resuscitation
•Admitted to the ICU
•Survived beyond 72 hours without successful weaning from mechanical ventilation

•Age under 18 years
•Pregnancy
•Expected to be weaned from mechanical ventilation within 48 hours
•Terminal-stage cancer or unwillingness to receive aggressive treatment
•Unavailability of ICU care due to overcrowding in the emergency intensive care unit
•Refusal to participate in the study by the patient or family members
•Presence of an implanted pacemaker or defibrillator
•Open wounds, severe edema, or deep vein thrombosis in the lower limbs
•Pre-arrest status limited to wheelchair use or bedridden, unable to ambulate