How to do it: Holding the towel, lie facedown with legs extended on the floor hip-width apart, toes pointed. Bend your elbows in by your sides so that the towel is pulled just in front of your collarbone and look down so that your chin is in towards your chest.
Extend your spine and lift your chest and arms off the floor (keeping your toes on the floor). Pull your shoulder blades back and together as you lift up.
Next, extend your arms (your arms should be outside of your ears) and lift your thighs off the floor. Hold for one count, then bend your elbows back in and lower your chest and thighs back to starting position. That’s one rep. Do 10 reps in a row.
Form tip: Be sure to keep your eyes focused on the ground and your chin into your chest (imagine you are holding an orange between your chin and your chest) to keep your neck in neutral alignment and avoid strain.