Individuals ( N = 347 ) referred to an exercise referral scheme were recruited into the trial from 13 centres.Outcomes and processes of change measured at baseline , 3 and 6-months : Minutes of self-reported moderate or vigorous physical activity ( PA ) per week ( primary outcome ) , health status , positive and negative indicators of emotional well-being , anxiety , depression , quality of life ( QOL ) , vitality , and perceptions of autonomy support from the advisor , need satisfaction ( 3 and 6 months only ) , intentions to be active , and motivational regulations for exercise.Blood pressure and weight were assessed at baseline and 6 months .