Association Between the Sit-To-Stand Test and the Prognosis of Patients With Heart Failure

The 1-minute sit-to-stand test will be assessed upon discharge from the Cardiac Intensive Care Unit. It may be assessed up to 48 hours after discharge from the unit. It will be performed on a standardized 46.0 cm chair without armrests, placed against the wall. Participants will be seated in the chair, without support, with their knees and hips at 90° flexion, with their feet parallel to the floor and their arms crossed over their chest. Participants will be instructed to stand up and sit down as quickly as possible without using their arms for 1 minute and will be instructed to stop whenever they wish. However, they must return as quickly as possible, since the goal is to complete as many repetitions as possible in 1 minute. Vital signs and dyspnea and leg fatigue will be assessed using the Modified Borg Scale before and after the test. A repetition will be identified as standing up completely straight and returning to the sitting position.