Plank to Push-Up
Works: Core, shoulders, arms
To begin, get into a high plank posture (on your hands instead of your elbows) with your arms firmly below your shoulders and your core engaged.
Raise one arm and rest the elbow on the ground; repeat with the other arm, coming up to rest on the elbows (traditional plank).
Then, starting with one elbow at a time, return to a high plank by bringing that elbow up and replacing your hands where they were. In two minutes, do as many as you can.
