6. LUNGE AND TWIST

BEGINNER: 8 reps each side (bodyweight) INTERMEDIATE: 8 reps each side (light medicine ball) ADVANCED: 8 reps each side (heavy medicine ball)

Holding a medicine ball straight in front of you, take a big step forward and lower into a lunge, keeping your torso upright.

Keep your front knee in line with your front toes.

At the bottom of the lunge, contract your abs and rotate your upper body to the same side as your front leg, then return to the middle.

Push up with your front foot to return to the starting position. Alternate sides.