Unlock Your Hip Flexors PDF Program (Rick Kaselj) This program is designed to teach you everything you need to know about the hip flexors, and how to keep them flexible, for optimum health. A very helpful about this program is that the exercises are easy to follow and they only take around 10-15 minutes per day. The main PDF is 63-pages long and clearly explains the functions of the psoas and why it’s one of the most important muscles in the body.
