4 Exercises for Flat Abs and Trim Hips

Start on all fours; drop left forearm to the floor. Lift right foot, with sole facing up, and turn knee in, swinging right foot out to the side (A). Then raise right leg up on a diagonal (B). Return to "A" and repeat 30 times.

Tip: Keep your foot in line with your knee.

Start on all fours; drop left forearm to the floor. Lift right knee and rotate it inward (A). Extend right leg out to the side (B). Reach toes forward, coming as close to right hand as possible. Return to "A"; repeat 30 times.

Tip: You want your leg to be as low to the floor as possible.

Start on all fours, then drop both elbows to the floor in front of you, right arm in front of left. Lift right leg up, bending knee so that shin is slightly angled to the left (A). Pulse leg up as you straighten it (B). Return to "A" and repeat 30 times.

Tip: Aim for a tight core.

Start seated on left hip, with knees and hips stacked and left forearm and right hand on the floor (A). Press hips up, lower them back down and press them up again while rotating onto left knee; arms stay in position. Kick right leg back and up (B). Return to "A" and repeat 30 times.

Tip: Shoulders should be back.