The Bone & Joint JournalVol. 98-B, No. 11 Hip P. A. Toogood, M. P. Abdel, J. A. Spear, S. M. Cook, D. J. Cook, M. J. Taunton Abstract Aims Total hip arthroplasty (THA) has well known subjective benefits, but little is known objectively about the recovery of mobility in the early post-operative period. Patients and Methods A total of 33 patients aged > 60 years who underwent elective primary THA had their activity monitored for 30 days post-operatively using an at-home (Fitbit) ankle accelerometer.