Lie on your back with your arms reaching toward the ceiling. If desired, hold one weight with both hands as shown. Bend one knee and plant the sole of the foot on the mat, and extend the other leg long, with the toes pointing to the opposite wall.
Bring the extended leg up so the toes are pointing to the ceiling while raising your arms. Lift your head and shoulder blades off the floor as you reach your fingers toward your toes.
Exhale and lower your arms and leg toward the floor, ensuring your lower back continues touching the mat.
Inhale and raise your arms and leg again to complete one rep.
Complete for 30 seconds, switching legs halfway through.