Does an early ambulation/mobility program, compared to traditional pressure injury care, reduce the development of hospital-acquired pressure injuries in 21 days?

Evidence (Levels I-VII) found in Melnyk and Fineout-Overholt, 4th edition

In hospitalized patients aged 65 years and older with decreased mobility (e.g., patients requiring assistance with activities of daily living (ADL), changes in positioning or ambulation) ((P), does an early ambulation/mobility program (I), compared to traditional pressure injury care (Q2 hour turn clock, specialty mattress, off-loading, etc.) (C), reduce the development of hospital-acquired pressure injuries (O) in 21 days (T)?