Of course it will help, any form of exercise can boost your weight loss. Not only that, but it will tone up your body so that once you do lose weight, things won't be err, saggy. Just be sure to rehydrate yourself with lots of water when/after exercise, and you should be fine.
Also, I think you've posted this in the wrong sub-forum. This is the Food Diaries secton - this thread would have been better off in the "Off Topic" sub-forum, just so you know for future reference.