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Sports Science - Aerobic and Anaerobic (Anaerobic exercise (Glucose is…
Sports Science - Aerobic and Anaerobic
Aerobic Exercise
Takes place in the presence of oxygen.
When exercise is over a long period, the heart can supply all the 02 the working muscles need.
Glucose + oxygen -> energy + co2 + water
Give 3 examples: Long - distance, endurance cycling, long distance swimming.
People working aerobically can work for a long period at a low to moderate intensity.
Anaerobic exercise
Glucose is therefore converted into energy.
Glucose -> energy + lactic acid
When exercise is short & at a high intensity, the heart and lungs cannot supply enough blood & therefore O2 to the working muscles.
Give 3 examples: 100 metre sprint, triple jump, 200 metre.
Takes place in the absence of enough oxygen.
People working anaerobically can only work for a short period of time.
Lactic acid
When working anaerobically, the muscles produce a waste called lactic acid.
Lactic acid is a mild poison and waste product of anaerobic respiration.
As lactic acid builds up in the muscles, they become painful, fatigued and unable to continue working as efficiently.
Excess post-exercise Oxygen Consumption (EPOC)
The amount of oxygen needed to recover after anaerobic exercise.
It is characterised by an increased breathing rate & deeper breath.
EPOC replenishes the body with oxygen and enables the body to convert the lactic acid produced during anaerobic exercise into glucose, CO2 & water.
Recovery Processes
Manipulation of diet
Protein to repair muscles
Carbohydrates to replace energy lost
Water to prevent dehydration
Ice baths or massages
Help prevent delayed on set muscle soreness (DOMS)
A.K.A. The muscles soreness that you feel in your muscles the day after intense exercise.
Cool Down
Muscles get less stiff
Less chance of cramp