P.E- Chapter 4- Fatigue and Recovery

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jt.mcrae
ID:
59084
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P.E- Chapter 4- Fatigue and Recovery
Updated:
2011-01-11 00:21:34
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Fatigue Recovery
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Fatigue and Recovery
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  1. What are the factors that affect the type of fatigue
    • -type, duration and intensity of activity
    • -fitness level of athlete
    • -mental state of athlete
    • -nutritional state- hydration, glycogen storage
  2. Name the levels of fatigue
    • -Local
    • -General
    • -Chronic
  3. Explain local fatigue
    Fatigue in a particular muscle group or body part that have been the focus of exercise
  4. Explain general fatigue
    Fatigue in all muscle groups as a result of an extended training program
  5. Explain chronic fatigue
    An unhealthy level of fatigue caused by continual break down of bodies defenses
  6. What are the cases of fatigue
    • -depends on type, duration and intensity of activity
    • -fuel depletion
    • -metabolic by-products
    • -de-hydration and over heating
  7. Explain fuel depletion
    • ANAEROBIC
    • - depletion of PC and carbs
    • results in
    • - intensity must be lowered to continue activity

    • AEROBIC
    • -carbs, fats, proteins depleted
    • results in
    • -body changes source of glycogen (muscle, liver, blood, fat stores, protein
    • -reduced activity
  8. Explain metabolic by-products
    • ACCUMULATION OF LACTIC ACID
    • - lactic acid rises with rate of anaerobic glycolysis
    • -affects muscular contractions by
    • inhibiting glycotic enzymes and calcium ions uses for coupling actin and myosin

    • ACCUMULATION OF H+ IONS
    • -lowers pH level of muscle cell
    • - hinders glycotic enzymes
    • -muscles can no longer contract
  9. What are some aspects of recovery?
    • -Cool down
    • -Muscle glycogen restoration
    • -Rehydration
  10. Explain the cool down
    • Low intensity version of exercise just performed
    • -breaks down and removes lactic acid
    • -prevents venous pooling
  11. Explain muscle glycogen restoration
    • May take 24 hours to fully replenish muscle and liver glycogen stores
    • speedy recovery
    • - eat 1 gm glucose/ kg of body mass in first 30 mins after exercise
    • -eat high GI foods in first 24 hours after exercise
  12. Explain rehydration
    • can take up to 24 hours to fully replenish fluid stores
    • consume 150% of fluid lost in first 2-4 hours
    • sodium consumption helps with keeping blood volume and concentration the same

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