The 2008 Drop a Jeans Size Workout

Combo 5: Mountain Climber/Bicycle

Cardio: Mountain Climber

Get on floor in a full push-up position, legs extended behind you with abs tight and head in line with heels. Bring right knee forward into chest, tapping right foot to floor, then switch legs, bringing left knee forward and right leg back while keeping hands in place. Continue, moving as quickly as possible, keeping hips down throughout.

Before

After