Participants in the IT-based arm were less likely to report that 30 minutes of physical activity per day improves health ( exp ( ) = 0.48 , 95 % CI 0.26-0 .90 ) and more likely to report that vigorous intensity physical activity 3 times per week is essential ( exp ( ) = 1.70 , 95 % CI 1.02-2 .82 ) .