Table 1.

The core components and BCTs for GREAT Strides intervention sessions

Session 1		Sessions 2–4
Core components	BCTs	Core components	BCTs
Gives a short overview of the GREAT intervention. Conducts a brief clinical assessment. Conducts a psychological assessment using the principles of motivational interviewing. Completes the worksheets from the patient support booklet. Gives patient a DVD and manual. Confirms appointment for session 2.	Provides information about health consequences. Verbal persuasion about capability. Discuss discrepancy between current behaviour and goals. Discuss pros and cons. Demonstration of the behaviour. Instructions on how to perform the behaviour. Behaviour practice/rehearsal. Feedback on behaviour. Goal setting (behaviour). Goal setting (outcome). Problem solving. Action planning. Graded tasks. Prompts and cues. Self-monitoring of behaviour. Social support. Commitment.	Review progress on gait circuit. Checks gait circuit progression. Completes and/or reviews the worksheets from the patient support booklet. Signposts to local walking groups.	Verbal persuasion about capability. Review behavioural goal. Feedback on behaviour. Problem solving. Goal setting (outcome). Social support (unspecified). Demonstration of the behaviour. Instructions on how to perform the behaviour. Behaviour practice/rehearsal. Goal setting (behaviour). Graded tasks. Action planning.