ISSA Unit 1 - Metabolism
ISSA Unit 1 - Metabolism

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1: Where does the energy come from that we use for physical activity?

Energy mainly comes from the sun. The plants and animals we eat provide us with the nutrients we need for energy.

2: Define homeostasis?

Maintenance of a constant internal temperature in the body

3: What is metabolism?

Biochemical processes within a living organism that sustain life

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NASM Gold Standard Personal Trainer Certification - Save 25%<br />
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ISSA - Most Popular Online Personal Trainer Certification 3 Certs for
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4: List and define the two phases of metabolism.

Phase1: Catabolism (break-down)
Phase2: Anabolism (Build-up)

5: What is BMR, and how does it relate to a human metabolic set point?

The least energy is required to maintain the body’s living function while resting. This is usually expressed in calories per hour per square meter of the body’s surface.

6: How do a kilocalorie and a calorie relate?

There are 1000 calories in a kilocalorie

7: Define the thermic effect?

The heat is liberated from food is a measure of its energy content.

8: Refer to the chart below:

ISSA Unit 1 - Metabolism 1

9: Give 5 metabolic adaptations to endurance training.

  1. increased muscle glycogen storage capacity
  2. increased muscle mitochondrial density
  3. increased resting adenosine triphosphate(ATP) content in muscles
  4. increased resting Creatine phosphate(CP) content in muscles
  5. increased resting creatine content in muscles

10: What are the anaerobic training adaptations?

  1. Increased size and number of fast-twitch muscle fibers
  2. Increased tolerance to higher levels of blood lactate
  3. Increases in enzymes that are involved in the anaerobic stage of glucose breakdown (known as glycolysis)
  4. Increased resting levels of ATP, CP creatine, and muscle glycogen content.
  5. increased levels of growth hormone and testosterone after short bouts (45 to 75 min) of high-intensity weight training

11: what is “ATP” and discuss the 3 energy pathways to produce it.

A compound known as Adenosine Triphosphate, whose breakdown leads to energy release used for muscle contraction.

ISSA Unit 1 - Metabolism 2

12: Fill in this chart

ISSA Unit 1 - Metabolism 3

If you want assistance wrapping your head around this material, make sure to check out Trainer Academy for some awesome ISSA study materials. They have Practice tests, flashcards, audio study guides, and much more.

ISSA Unit 1 - Metabolism 4
ISSA Unit 1 - Metabolism 5

Tyler Read

Tyler Read, BSc, CPT. Tyler holds a B.S. in Kinesiology from Sonoma State University and is a certified personal trainer (CPT) with NASM (National Academy of sports medicine), and has over 15 years of experience working as a personal trainer. He is a published author of running start, and a frequent contributing author on Healthline and Eat this, not that.

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12 thoughts on “ISSA Unit 1 – Metabolism”

  1. PTPioneer User

    Hi. Is this the original guide. Not sure if I wanna do this or nasm. I want the one with prestige. Which do u recommend.

  2. PTPioneer User

    Hi Tyler, This is a great help to me as I study. Thank you! I wasn’t sure if I got #8 correct, so I came here to check. But I don’t see the answer here. Am I missing something?
    Thanks so much!

    1. Tyler Read - Certified Personal Trainer with PTPioneer

      Hey Susan, I am glad this study guide is helping you out. I believe number 8 is just a table/chart to review through.

  3. PTPioneer User

    Kindly upload the new 10th Edition contents… It would be nice to study in advance for the new ISSA members.
    Thanks, Z.

    1. Tyler Read - Certified Personal Trainer with PTPioneer

      Hey Zarina, I have updated the site since the comment was posted. I hope you enjoy the up-to-date content here on PTPioneer.

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