Stand in Tadasana. With an exhalation, step or lightly jump your feet 3 1/2 to 4 feet apart. Raise your arms parallel to the floor and reach them actively out to the sides, shoulder blades wide, palms down.
Turn your left foot in slightly to the right and your right foot out to the right 90 degrees. Align the right heel with the left heel. Firm your thighs and turn your right thigh outward, so that the center of the right knee cap is in line with the center of the right ankle.
Exhale and extend your torso to the right directly over the plane of the right leg, bending from the hip joint, not the waist. Anchor this movement by strengthening the left leg and pressing the outer heel firmly to the floor. Rotate the torso to the left, keeping the two sides equally long. Let the left hip come slightly forward and lengthen the tailbone toward the back heel.
Rest your right hand on your shin, ankle, or the floor outside your right foot, whatever is possible without distorting the sides of the torso. Stretch your left arm toward the ceiling, in line with the tops of your shoulders. Keep your head in a neutral position or turn it to the left, eyes gazing softly at the left thumb.