The NASM-CPT Textbook is over 1000 pages long and covers so many content areas that it can make your head spin. One concept that appears on the exam time and time again is understanding the difference between overactive and under active muscles.

In this video, Axiom Fitness Academy instructor Joe Drake explains a simple way to think about the difference between underactive muscles and overactive ones and what that means for movement. If you master this concept you’ll not only pass the exam, but become a better trainer as well.

Want to learn more about identifying overactive and underactive muscles? Check out these other resources:


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