You do this 30 seconds exercises, without any break. You need only 5 minutes. You do : – Plank Hold, – Plank Rock, – Plank Hip Hop, – Plank Leg Tap, – Plank Hand Tap, – Sprinter Plank, – Plank Jacks, – Plank Up-Down, – Spiderman Plank, – Cross Plank.
