A

SETUP Strengthens all lower-body muscles; focus is on quads, hamstrings, buttocks, upper hips and inner thighs - Stand with feet together, abs pulled in and up. Hold a dumbbell in each hand, arms at sides. - Step forward with right foot, bending knees so right knee aligns over right ankle, left heel lifted; hinge forward from hips, keeping back straight, and bring dumbbells to either side of right ankle.

B

ACTION - Straighten torso; next, push off right foot to return to starting position. - Then step back at an angle with right foot into a side lunge, bending right knee and keeping left leg straight. - Hinge forward at hips and lower dumbbells toward floor. - Lift torso to an upright position, then step back into starting position with feet together and repeat combo. Do reps, then switch legs and repeat.