Start by lying lengthwise along a yoga mat. Place your right forearm firmly on the floor, ensuring that your elbow is directly below your shoulder and that your forearm is parallel to (in line with) the short edge of your mat.
Straighten both legs and, using your obliques, gently raise your hips off the mat. Position your feet one on top of the other, or place your left foot on the mat in front of your right — whichever is more comfortable. Gently draw your ribs to your hips to engage your core. This is your starting position.
On an inhale, lower your hips toward the mat with control. Go as far as you can without sacrificing your form. If you do touch the mat with your hip, make sure it's a light tap.
On an exhale, use your obliques to lift back up and return to the starting position.
This counts as one rep.
Complete 10 reps on the right side and 10 reps on the left side.