Description of experimental and control group interventions
| Experimental group | Control group | |
| Brief name | Motivational interviewing after hip fracture | Dietary advice |
| Why | Build confidence to increase walking behaviour | Provide nutritional education |
| What materials | Motivational interviewer maintains a logbook to guide and record the content of each session and deviations from protocol | Dietitian maintains a logbook to guide and record the content of each session and deviations from protocol |
| What procedures | To follow motivational interviewing principles of engagement, focusing, evoking and planning to increase walking behaviour | Assess participant’s nutritional status, provide advice and review progress |
| Who provided | Allied health professional who has received training in motivational interviewing by attendance at a 2-day workshop and one-on-one coaching from an expert motivational interviewing practitioner | Accredited practising dietitian |
| How provided | Individually by telephone | Individually by telephone |
| Where (setting) | Participant recovering from hip fracture living independently in the community | Participant recovering from hip fracture living independently in the community |
| When/how much (dose) | 10 sessions each of 30 min duration over 16 weeks (total 5 hours) | 10 sessions each of 30 min duration over 16 weeks (total 5 hours) |
| Tailoring | Sessions tailored to the needs and progress of the individual | Sessions tailored to the need and progress of the individual |
| Fidelity checking measures | Fidelity assessed with Motivational Interviewing Integrity Scale on a sample of audiotaped sessions Adherence through number of completed sessions and duration of session from clinician logbook | Fidelity assessed by review of a sample of audiotaped sessions Adherence through number of completed sessions and duration of session from clinician logbook |