Fig. 2

Physical assessment and self-reported outcomes throughout the study period. 0 = baseline, t1 = week before surgery, t2 = 10 days post-operative, t3 = pre-discharge from hospital, red line = intervention group, blue line = control group. Higher scores for quadriceps strength, a 6-min walking distance, physical and mental component scores represent better outcomes. Lower scores for the five times to stand test and pain outcomes represent better outcomes. No statistical difference between groups was reported for all outcomes (p > 0.05)