“…Stair negotiation, going up and down a flight of stairs with, or without assistance (Van Iersel et al, 2002), is a primary functional requirement for inpatient hospital discharge. Centre-based interventions also facilitate early rehabilitation and adherence to higher training intensity , both of which may promote faster functional recovery and shorter hospital admissions after hip (Oldmeadow et al, 2006) or knee joint surgery (Khan et al, 2008).…”