NASM 6th edition chapter 1: The scientific rationale for integrated training

Pick up the NASM CPT here and save 20% with my personal code PTP20. Head back to the NASM study guide/practice test homepage here. Check out my NASM Prime Study System if you want to cut your study time in half and have an exam pass guarantee.


Chapter 1 NASM study guide

General definitions you need to memorize

  • Muscular imbalances: The alteration of a muscles length that surrounds a joint.
  • How muscular imbalances are caused: Muscular imbalances are caused by a variety of different things including emotional duress, repetitive movements, bad training techniques, the lack of neuromuscular efficiency, poor core strength, cumulative trauma and stress caused by postural problems.
  • The differences between obesity and overweight: Being overweight is considered having a BMI index between the ranges of 25 and 29.9 and between 25 and 30 pounds over the recommended height to weight ratio. Being obese is considered having a BMI of 30 or more with at least 30 pounds overweight for the height to weight ratio.
  • Proprioception: Proprioception is the cumulative input into the central nervous system coming from the various Mechanoreceptors in the body that sense limb movement as well as body position. For example, while running your feet send proprioceptive feedback depending on the type of surface you are running on.
  • Proprioceptively enriched environments: These are unstable environments that are controlled. These challenge one’s Internal balance and stabilization.
  • The OPT training model: There will be a lot more chapters talking about the OPT training model. For now, all you should know is that it is a systematic training approach that builds on itself and the general phases of stabilization, strength, and power.

Health facts

  • 57% of the deaths in the United States were caused by cancer and cardiovascular disease. Approximately 80% of these deaths could have been prevented if the individuals lived healthier lifestyles.
  • Currently, 66% of people in the United States that are over 20 years old or overweight. 34% of this 66% are classified as obese.

The NASM code of professional conduct

Business practice

Make sure to keep an accurate record of client records and financial transactions in order to pay all taxes that are due for four complete years. Never get sexually involved with a personal training client. Always practice the truth with how you advertise your services and make sure to have liability insurance at all times.

Ethical and legal

Make sure to always stay within the law that is connected to the area where you are training. Make sure to keep records that are truthful and always be responsible for how accurate they are.


Make sure to keep your client’s documents and personal information secure and respect their right to privacy.


Whenever you are with the client you should always practice being as professional as you can. Effective communication with their clients is important to keep a safe environment. Make sure you are wearing appropriate clothing for training and maintain great hygiene standards. When you are an encounter a situation that is outside of your scope of knowledge, make sure to always refer your personal training client to a doctor.

Chapter 1 NASM Practice test

Chapter 1 NASM flashcards

  • dana says:

    this is a great study guide but how do I know what answers I got right/wrong on the practice tests?

    • Tyler Read says:

      Hey Dana,
      Currently on my website I do not have the answers available for the free practice tests. That is a good recommendation and I will look into putting up a cheat sheet that contain all of the answers on my website somewhere.

  • stuart says:

    What’s the difference between strength and power? If I’m understanding properly, phase 1 is stability, 2-4 is strength, and 5 is power. I’m not sure I understand the difference between the two.

    • Tyler Read says:

      Hello Stuart,
      Strength has to do with maximal overall strength were power has to do with not only how strong you are but how fast you can move the weight that you are lifting. This is very important for being explosive and for athletic training