This study was a pilot randomised controlled trial of occupational therapy to optimise recovery for patients undergoing primary total hip replacement.  

Forty-four (44) patients took part in the PROOF study. They provided information to the research team for 6 months (26 weeks) following their hip replacement. 

The study found that the intervention was acceptable and provided the information required to conduct a definitive trial. 

A paper describing the research design can be found here:

A feasibility randomised controlled trial of pre-operative occupational therapy to optimise recovery for patients undergoing primary total hip replacement for osteoarthritis (PROOF-THR) Clinical Rehabilitation, 2015; 30(2):156-66