Level 2 Gym Instructor – Cardiovascular and Energy/Nervous Systems

Onward’s and upwards as I continue my journey through my Level 2 Fitness Instructor course.  I am now sitting on my third assignment which this time is covering the Cardiovascular System, The Nervous System and The Energy System.  Thus far I have found these sections the most interesting so far and the most challenging (especially Cardiovascular).  As always let’s take a look at the break down of some of the things you will learn.

What You Will Learn – Cardiovascular System

  • Respiratory System
  • Composition of Gases
  • Mechanisms of Breathing
  • The Lungs
  • Gaseous Exchange
  • The Heart
  • Systemic and Pulmonary Circulations
  • The Cardiac Cycle
  • Blood Pressure

What You Will Learn – Energy Systems

  • ATP (Adenosine Tri-phosphate)
  • Creatine Phosphate Energy System
  • The Lactic Acid Energy System
  • The Aerobic Energy System

What You Will Learn – The Nervous System

  • Nervous System Responsabilities
  • Central Nervous System
  • Peripheral Nervous System


When I originally started this section my initial impressions were along the lines of “Holy cow this is where it starts to get harder”.  I was wrong.  I think sometimes we confuse difficulty with volume of work and just naturally assume because there is more to do it is potentially going to be harder.

There is an awful lot to wrap your head around in the Cardiovascular System but once you grasp the basics it all falls into place.  I was surprised of the simplicity of the Energy Systems and Nervous Systems however I am also aware we are barely scratching the surface here and are really only just “grasping” the basics.

Whats Next?

My next section is “Components of Fitness” which after having a quick glance am really excited about.  Stay tuned for our next section!

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