Critically appraised paper: Tailored prescription of digitally enabled rehabilitation may improve mobility, but not physical activity, in geriatric and neurological rehabilitation [commentary]

Question: Does tailored prescription of digitally enabled rehabilitation using affordable devices improve mobility and physical activity in people with mobility limitations admitted to aged care or neurological rehabilitation? Design: Pragmatic, parallel-group, randomised controlled trial with concealed allocation and blinded outcome assessment. Setting: Three inpatient rehabilitation (aged care, neurological rehabilitation) hospitals in Australia. Participants: Adults with reduced mobility (defined using Short Physical Performance Battery score < 12), clinician-assessed capacity for improvement, life expectancy > 12 months, anticipated length of stay at least 10 days from randomisation, and able to maintain standing position (assistance of one person permitted). Key exclusion criteria were cognitive or visual impairment likely to interfere with device use, inability to communicate in English, medical conditions prohibiting exercise and anticipated discharge to nursing home. Randomisation of 300 participants allocated 149 to usual care plus digitally enabled rehabilitation and 151 to usual care only. Interventions: Both groups received usual multidisciplinary rehabilitation care. In addition, the intervention group was prescribed 30 to 60 minutes of digitally enabled rehabilitation (virtual reality video games, activity monitors, tablet and smartphone exercise applications) 5 days a week in hospital and after discharge (using loaned devices) for 6 months. The digitally enabled rehabilitation was individually tailored and progressed by a physiotherapist. Outcome measures: Co-primary outcomes were mobility (performance-based Short Physical Performance Battery) and upright time as a proxy for physical activity (proportion of day upright measured by activPAL, averaged over 7 days) 6 months after randomisation. Secondary outcomes included performance- based and patient-reported measures of mobility and physical activity. Results: A total of 258 participants (129 control