Work the deep glute muscles and lift your tush with this classic exercise that reminds us of an old-school Jane Fonda move.
- Start on all fours with hands underneath your shoulders and knees under your hips. Keeping the knee bent 90 degrees, lift the left leg until it's parallel to the floor.
- Keep the left thigh still as you straighten your left knee, kicking your leg out to the side. Don't let the leg lower as you kick it.
- Bend the left knee back to 90 degrees, then lower the leg. This completes one rep.
- Do three sets of 20 reps per side.