Criss-Cross Power Jacks
To do it: Stand with feet together and take a deep breath in. As you exhale, jump feet out wide and cross arms overhead. From there, scissor legs, crossing left leg in front of right, as left arm crosses over right at chest level. Immediately repeat, alternating sides each time.
Matthews recommends using this move as part of a circuit, completing the exercise for 30 to 45 seconds before transitioning to the next strength move.