slat1 said:Lifting is key. Glad you have her doing it. Muscle after all speeds up the metabolism.
If she wants to just burn fat have her walk on a treadmill at a 6% incline. If she keeps her heart beat at 115 to 120 she will burn fat and minimal muscle.
Running will burn both which can be counterproductive if she really wants to rip up.
There are tons of little things that make a big difference.
nice stuff slat1 - just the kind of insightful info. i've been also looking for.