Honoure said, "Hollow holds really challenge the abdominals, especially your lower abs, and help sculpt and tone your core. This is a great move for improving posture, and I personally like it because it helps strengthen my rowing."
Begin on your back with your legs straight and your arms extended overhead.
Actively press your lower back into the floor, and draw your belly button into your spine.
Inhale to slowly lift your shoulders, arms, and legs off of the floor.
Keep your hands and heels as low to the ground as possible while still pressing your lower back into the floor. Maintain tight abs and glutes. It's OK to bend your knees to modify the move.