Level Up Your Plank Workout: 11 Planks to Build Core Strength
When you were a kid, you probably did sit-ups at school for an ab workout. But is the sit-up the best ab exercise? Thats actually a simple question. This post originally appeared onStrength Running. If you regularly do a plank workout, you know how simple they are. They can be done virtually anywhere and require no equipment. Theyre perfect for beginnersand even the fastest of runners. I do them regularly as part of theStandard Core Routine....