Muscle Dysfunction in Critical Illness

Patients surviving critical illness suffered significant skeletal muscle dysfunction and weakness that impacts their functionality and independence. The primary purpose of this project is to develop a classification system based on the health and function of the muscle at very early time points during critical illness. The investigators will determine if muscle ultrasound can predict functional recovery at six-months post hospital discharge. Researchers will assess muscle health and function from starting day one of admission to ICU and continue until six months of recovery. In addition to muscle ultrasound, the investigators will assess muscle strength and power, and perform muscle tissue analysis on a subset of individuals. These findings will be correlated to physical function and independence at six-month follow-up.