Your follow-along video is on its way.Until it arrives, follow the four frames below and the steps on page 53 of your book. Nothing to install, nothing to sign up for.
Why it helps: It keeps your spine and neck able to turn, which you need when you back up the car or check behind you.
Practice safely. Read Part 2 of your book before Day 1. Move within your comfort, and stop if you feel chest pain, dizziness, shortness of breath or sharp pain. This is not medical advice.