What are some good excercises that you could burn up to 1000 if not more in an hour? what kind of cardio?

# of calories burned: Depends on one's weight & how vigorously one exercises. Follow the link for 10 exercises that have the potential to burn more than 1000 calories/hr (in the right people working very hard):http://sports.Yahoo.Com/top/news?Slug=ycn-10764123 of course, keep yourself well hydrated & eat adequate carbs & protein to build new muscle & prevent muscle loss. Consult with doc before doing such vigorous work.