The pectoralis major muscle is the main showstopper, attaching from your sternum, collar bone and a little bit of the abdomen to your upper

Quadriceps muscles, or quads, are what create all that definition in your thighs which develop from activities such as kicking, running, and

The piriformis is a gluteal muscle that can certainly be a pain in the butt… and your knee and even all the way down your entire leg! It’s p