Are you familiar with the kinetic chain? 

1. Have you been training your body to eliminate weak links? 
2. Are you currently battling with injury and tweaks throughout your body? 
3. Are you looking to strengthen every muscle in your body, or kinetic chain? 

An illustration of the kinetic chain. When Achilles was a little baby his mother dipped him into a river of magic in order to protect him from the world. It worked because Achilles could not be harmed except on the one heel that his mother neglected to submerge in the water because of where she held him when she dipped him into the water.