Regression analyses indicated that the treatment group demonstrated significant increases in moderate and vigorous physical activity , as compared to the control group ( F ( 1 , 207 ) = 6.3 , p < 0.05 , Cohen 's d = 0.30 ; F ( 1 , 207 ) = 4.7 , p < 0.05 , Cohen 's d = 0.25 , respectively ) .