Start by lying straight on your back on a yoga mat with your legs extended out in front of you.
Bend your elbows and place your hands behind your earlobes. Gently raise both legs, your head, and your shoulders off the mat.
Keep your right leg extended as you bend your left knee and draw it in toward your chest. At the same time, rotate your torso to the left, bringing your right elbow to your knee.
Untwist your torso and extend your left knee to return to the starting position. Immediately bend your right knee and draw it in toward your chest and rotate your torso to the right to bring your left elbow to your knee. Untwist your torso and extend your right knee to return to the starting position.
This counts as two reps.
Repeat for a total of 50 seconds followed by 10 seconds of rest.