No equipment needed
3 blocks of work:
Block 1: A gentle, challenging warm-up that's focused on core & back strength along with shoulder strength & mobility.
Block 2: Lay on your back & work that 6 pack!
Block 3: Shoulder-burning plank series.
Block 1: 3 rounds: 45sec on/15sec rest
Block 2: 3 rounds: 60sec on/30sec rest
Block 3: 3 rounds: 45sec on/15sec rest