Gym, core
On your back, lower the opposite arm and leg slowly while your lower back stays pressed down.
Beta: we're less sure how well one camera can judge this move, so treat the scores as a rough guide.
Phone at hip height, about 3 metres away, filming you from the side.
Your whole body, head to feet, needs to be in the picture. The coach will remind you if it can't see you.
Reach your leg out long
Your leg stayed bent. Reach it out long, just above the floor.