Personally I believe that the plank is the best core exercise because it engages more than just the abdominal muscles. Often times people think they have to do a million crunches/sit-ups to get those mythical 6-pack abs that we all dream about. Sadly, the development of our 6-packs is based mostly on our diets. You might have those killer 6-pack abs, but they are probably buried under a layer of fat.
The plank is an isometric exercise meaning that the muscle length does not change through contraction and/or is in a static hold. The plank is a great exercise because it focuses on muscle endurance of the abdominal muscles while using solely your bodyweight. You can do a plank anywhere! The planks targets the following muscles:
- Rectus abdominis
- Transverse abdominis
- Pelvic floor
- Erector Spinae
- Quadartus Lumborum
- Gluteus minimus/medius
- Gluteus maximus
How to perform a plank:
1. Lie face down on an exercise mat or floor with your elbows at your sides facing towards the floor (you always want to keep a neutral neck/spine position).
2. Lift your body up by engaging your core and gluteals, supporting your weight on your forearms and toes. Think about SUCKING IN THE BELLY BUTTON to engage your core and keep the hips up and inline with your back. Think dinner table flat back!
3. Concentrate on maintaining a straight line through the hips and core. Don’t forget to breathe!
4. Hold to position for about 30 seconds or until failure to start. Over time you can build up to holding the position for more time and/or go through plank progressions.
Of course, there are about a hundred more variations of the plank that you can do. Some of my favorite include the TRX plank progressions and using the cable machine and performing a row with the arms while in either a forward plank or side plank.
~ Happy Training!