Older people receiving inpatient rehabilitation will be randomly assigned to an intervention group, who will receive extra physical activity on weekdays and weekends or a control group, who will receive additional activities based on social interaction. The activity sessions will be individualized to the particular participant. Both groups of people will be assessed at baseline, discharge from hospital and at 6 months following discharge. The intervention group will be provided with one or two extra sessions on weekdays and two extra sessions on weekends for the duration of their rehabilitation stay. To account for the extra physiotherapy time that the intervention group receives, the people in the control group will spend the same amount of time performing other activities, such as cards, board games or reading, whilst seated. To ensure the safety of the participants in this study, each physical activity session will be supervised by either a physiotherapist or allied health assistant.