Respondents who participated in skateboarding did so for an average of 5.2 hr per week ( SD = 6.6 ) , .
Those who attended skate parks also did so for an average of 5.2 hr per week .
Respondents who participated in skateboarding did so for an average of 5.2 hr per week ( SD = 6.6 ) , whereas those who attended skate parks also did so for an average of 5.2 hr per week .