This weeksSweat With SELFvideoled by athletic trainerLiz Letchford, Ph.D., A.T.C., and coachPaul Wrightfocuses on core rotation.

(If you missed the first part, go ahead and check it outhere.)

As Letchford explains, the core has two functions in rotation.

20Minute Obliques Workout

Courtesy of Spacestation

One is to allow the transfer of power from the hips to the shoulders.

And the second is to rotate on its own.

This 20-minutebodyweight workouthelps train both functions with moves like Russian twists,side planks, and twisting mountain climbers.

Hook  Obliques Workout

Workout Directions

Start with the dynamic warm-up.

Do each exercise for 35 seconds, resting 1520 seconds between each move.

Next, do the workout.

Big Hook  Obliques Workout

Do each exercise for 40 seconds, resting 510 seconds between each move.

Repeat the circuit two more times, resting 15 seconds between each round.

Dynamic Warm-Up

Workout

*Rest for 15 seconds.

Bow and Arrow  Obliques Workout

Repeat the circuit 2 more times.

Russian Twist  Obliques Workout

Twisting Mountain Climber  Obliques Workout

Penguin  Obliques Workout

Arm and Leg Lift  Obliques Workout

Side Plank  Obliques Workout

Supine Twist  Obliques Workout