blugold15 Member

I use a Polar HRM every time I workout - I've logged as many as 700 calories doing the Plyo workout in P90X.

P90X has a classic version, a lean version, and a doubles version. The lean version is more cardio based - you don't do much of the resistance training in that program. Whichever route you choose, you are going to burn a TON of calories, and therefore, increase lean muscle tissue (lose fat), as long as you pay attention to…