Respiration and Exercise

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  • Respiration and Exercise
    • When You Exercise You Respire More
      • Muscles need energy from respiration to contract
        • Muscles contract more regularly
        • Energy comes from increased respiration
          • Increase in respiration means more O2 is needed in the cells.
    • Anaerobic Respiration Doesn't Use O2 at all.
      • Doesn't release as much energy as aerobic respration
        • Produces a build up of lactic acid which can be painful and give you cramp.
      • Keep using muscles for a long time
      • Heart stays high to get O2 to muscles allowing it to break down lactic acid.
    • You Can Look At The Effect of Excerise on Heart Rate and Breathing
      • Pulse increases the more intense the exercise is. The body  needs more O2 for muscles and more CO2 taken away.
  • Muscles need energy from respiration to contract
    • Muscles contract more regularly
    • Energy comes from increased respiration
      • Increase in respiration means more O2 is needed in the cells.
  • Breathing increases to allow more O2 in to blood.
    • When You Exercise You Respire More
    • Really hard exercise can't supply O2 to muscles quick enough so they respire anaerobically.
      • Cardiac Output = Heart Rate x Stroke Volume
        • Really hard exercise can't supply O2 to muscles quick enough so they respire anaerobically.
        • Happebs when not enough O2 available,
          • Anaerobic Respiration Doesn't Use O2 at all.
            • Doesn't release as much energy as aerobic respration
              • Produces a build up of lactic acid which can be painful and give you cramp.
            • Keep using muscles for a long time
            • Heart stays high to get O2 to muscles allowing it to break down lactic acid.
        • Glucose ---> Lactic Acid
          • Happebs when not enough O2 available,
          • Stopping exercise means O2 debt.
            • You have to repay O2 you didn't get to muscles in time. The amount of oxygen needed is called excess post-exercise O2 consumption
            • Keep breathing hard after stopping to get more 02 to blood.
          • Measure breathing by counting brethes and heart rate by taking pulse.
            • You Can Look At The Effect of Excerise on Heart Rate and Breathing
              • Pulse increases the more intense the exercise is. The body  needs more O2 for muscles and more CO2 taken away.

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