Effect of Sit-to-Stand Intervention in the Intensive Care Unit Survivors

"1. Passive range of motion(ROM) exercise of lower legs, active ROM exercise of lower legs, and sitting balance exercise, 20\~30 min, once daily.~2. Anti-gravity ROM exercise of lower leg, resistance exercise of low leg, and sitting balance exercise, 20\~30min, once daily.~3. Stepping exercise and sit-to-stand exercise, 20\~30min, once daily."