My main goal is size and strength but I wouldnt mined keeping my body fat down and gaining some cardiovascular endurance in the process. I started playing hockey but it is only one time a week. It last for an hour and a half and I look at it as HIT style training as you skate hard for a couple minutes then go to the bench and rest for a few minutes and go back out again. My question is is an hour and a half of HIT style cardio once a week enough to make an impact in how lean my physique is? Going from no cardio to this can I expect to see some changes or is it not enough?