Participants reported an increased number of minutes and sessions of physical activity at 3 months ( exp ( ) = 1.45 , 95 % CI 1.09-1 .95 ; exp ( ) = 1.61 , 95 % CI 1.17-2 .22 ) and 9 months ( exp ( ) = 1.55 , 95 % CI 1.14-2 .10 ; exp ( ) = 1.51 , 95 % CI 1.15-2 .00 ) .