What is the effect on independent recovery of using pedometers as a tool to prescribe exercise following total hip replacement?

INTERVENTION: Participants are randomly allocated into one of two groups. Group 1: Receive standard care Group 2: Receive standard care and walking based pedometer intervention CONDITION: Total hip arthroplasty. ; Surgery PRIMARY OUTCOME: Oxford Hip Score; ; Measured pre‐surgery and 4, 12 and 24 weeks post surgery. SECONDARY OUTCOME: 1. Hip dislocation; 2. Quality of life measured by self‐completed questionnaire; 3. Physical activity level through accelerometry.; ; Measured pre‐surgery and 4, 12 and 24 weeks post surgery. INCLUSION CRITERIA: 1. Patient is on the waiting list for primary elective unilateral THR 2. Patient is 18 years of age or older 3. Patient is able to walk at least 10m pre‐operation without walking aids, if the patient is unable to walk pre‐operation it is believed that the patient will be able to walk post‐THR 4. Patients operation is scheduled to be at least 2 weeks away 5. Patients have no other prosthetic implants 6. The surgeon that is performing the operation performs operations in both the independent and NHS hospital