Start on your hands and knees with your wrists under your shoulders and knees under your hips. Tighten your core to pull it against your spine.
Extend your right leg straight out behind you, bringing it in line with your torso. Squeeze your glutes and keep your upper body stationary.
Open your hips about 45 degrees to the right side, continuing to keep your core tight and engaged.
Shift your right leg back a few inches behind you, so you really squeeze your glutes. Make sure to keep your back flat, not arched, with your core still engaged.
From here, you can lift your right arm up to the ceiling or place it on your hip. If you want extra support, keep your right hand on the ground. This is your starting position, called a half-star.
Pulse your right leg up to the ceiling, lifting it just a few inches. Continue keeping your back flat and your glutes and abs squeezed.
Lower your right leg a few inches, pulsing back down but keeping your leg lifted.
This counts as one rep. Repeat for eight pulses, then continue straight into part two of Standing to Kneeling Seatwork.