1.1 Overview

  1. What are the 3 energy systems ? (3)
    -phosphagen system

    -anaerobic energy system

    -aerobic system
  2. Phosphagen Energy System) AKA
    Immediate energy system
  3. Phosphagen Energy System) AKA II
    ATP-CP system
  4. Phosphagen Energy System) Stores of high energy phosphates (2)

    -creatine phosphate
  5. Anaerobic energy system) what macro is involved in here?
    Only CHO
  6. Anaerobic energy system) does it require oxygen?
  7. Anaerobic energy system) AKA
    Anaerobic glycolysis
  8. Aerobic energy system) which macros does it involved?
    All amcros
  9. Aerobic energy system) does it require oxygen ?
    • Yes it does
    • Aero
  10. Aerobic energy system) AKA
    Oxidative system
  11. CAn aerobic energy system be used for high intense exercise?
    No bc it cannot produce energy quickly so its more suitable for like long distance
  12. What can low CHO intake result in? (2)
    • Muscle protein breakdown and loss of muscle mass
    • *gluconeogenesis forms CHO from PRO
  13. What is the small ATP pool used for?
    It is used for energy whenever instantaneous energy is needed
  14. Examples of ATP pool usage (3)


  15. Energy systems ) Phosphagen system is used when...
    During short bursts of intense activities
  16. Energy systems ) examples of activities for when phsophagen is used?
    -10 seconds of intense, all out activity such as short sprint or activity
  17. Examples of "during longer slating sprint activities of lower intensity "
    1-3 minutes of all-out activity such as long sprint or activity
  18. examples
  19. During longer lasting sprint activities of lower intensity (800 m run) the main supplier is the...
    Anaerobic system with the help from phospahgen and aerobic systems
  20. Examples of during longer lasting activities of even lower intensity (2)
    -4-6 minutes of all out activity

    -long duration and non-steady activity
  21. suring longer lasting activities of even lower intensity (mile run) the main supplier becomes (2)
    Aerobic system with help from anaerobic system
  22. During long lasting activities of low intensity, the main supplier is
    Aerobic system with minimal help from the other systems
  23. Examples of "during long lasting activities of low intensity " (2)
    30 minutes of continuous activity

    Long duration, steady state aerobic activity
  24. CHO used during exercise can come from, (3)
    -muscle and liver glycogen stores

    • -endogenous production of glucose by the liver
    • *gluconeogenesis

    -carbohydrate consumed during exercise
  25. Sources of CHO during exercise: muscle and liver glycogen
    The body's primary CHO reserves
  26. Liver glycogen: contains the body's...
    Highest amount of glycogen
  27. Liver glycogen: maintains the body's
    Blood glucose overnight when fasting
  28. Sources of CHO during exercise: glycogenolysis , what is it?
    Breakdown of liver glycogen
  29. Sources of CHO during exercise: what does glycogenolysis help maintain?
    Blood glucose levels
  30. Sources of CHO during exercise: gluconeogenesis, what are the substrates used for this? (4)



  31. Sources of CHO during exercise: where are the substrates shuttled to during gluconeogenesis?
    To the liver for glucose production
  32. Sources of CHO during exercise: what is gluconeogenesis a major source of glucose for?
    Working muscles during prolonged exercise
  33. Gluconeogenesis : where does lactate come from?
    Primarily comes from the metabolism of glucose to lactate through glycolysis
  34. Gluconeogenesis : alanine , it is the primary...
    Amino acid released by working muscle
  35. Gluconeogenesis : how is alanine made
    Combining nitrogen with pyruvate
  36. Gluconeogenesis : pyruvate , how do cells attain this?
    Leaks from the working cells into the blood
  37. Gluconeogenesis : glycerol, how do we grab glycerol?
    Adipose tissue or muscle triglycerides are broken down into glycerol and fatty acids q
  38. Use of glycogen during exercise: depends on exercise intensity
    -higher intensities use muscle glycogen faster
  39. Hormones increased with exercise: (4)



  40. Hormones increased with exercise: cortisol
    Stimulates gluconeogenesis
  41. Hormones increased with exercise: Norepinephrine
    Stimulates breakdown of stored fat and glucose for energy
  42. Hormones increased with exercise: epinephrine
    Promotes glycogenolysis in the muscle and liver
  43. Hormones increased with exercise: glucagon (2)
    Released in response to low BG

    Causes gluconeogenesis & glycogenolysis to increase BG
  44. Hormones decreased with exercise : insulin
    Decrease with exercise as the body needs glucose to be releases not stored
Card Set
1.1 Overview
First PowerPoint