Anaerobic & aerobic respiration

    Cards (16)

    • Anaerobic exercise
      • Absence of oxygen
      • Short duration, high intensity
      • Glucose -> energy + lactic acid
    • Aerobic exercise
      • Presence of oxygen
      • long duration, medium- low intensity
      • Energy comes from carbohydrates
      • Glucose + oxygen -> energy + carbon dioxide + water
    • What is lactic acid A01
      Poisonous acid created after high intensity exercise, by-product of anaerobic exercise
    • EPOC ( excess post-exercise oxygen consumption) A01

      After respiring anaerobically oxygen is needed to recover
      To do this, a high deep breathing rate is maintained
    • Why does Usain Bolt do a lap of honour after his race?
      1. to recover from high intensity exercise by maintaining elevated breathing
      2. To repay oxygen debt
      3. The oxygen restored flushes out lactic acid
    • Explain function of EPOC
      • Helps body recover
      • Repays oxygen debt
      • Coverts lactic acid into glucose, C02 and water
    • how to recover after anaerobic exercise
      • gentle jogging
      • Gentle stretching
      • Drinking water
      • Carbohydrate loading
      • High protein diet
      • Ice baths
      • massage
    • how does stretching help recovery?
      Oxygenated blood flows to working muscles, converting lactic acid into glucose, carbon dioxide and water to prevent DOMS
    • How does drinking water help recovery?
      Rehydrates body and replaces fluids lost during exercise preventing DOMS
    • How does carb loading help recovery/ performance?
      Increased amount of complex carbs maximises glucose in body therefore more energy
    • how does a high protein diet help recovery?
      protein helps heal muscle Tears quickly, so training can be resumed quicker
      Good for power athletes
    • How do ice baths help recovery?
      Blood vessels to vasoconstrict forcing lactic acid away from muscles, prevents DOMS
    • How do massages help recovery?
      Muscle fibres tear after intense exercise as muscle tissues are deprived of blood. massages increase blood flow to disperse waste products
    • Immediate effects of exercise
      1. Increased HR and SV- more blood pumped into muscles
      2. Breathing rate and TV increase- allows more gaseous exchange
      3. Body temp increase - muscles Contract more often generating heat
    • Short term (24-36 hours) effects of exercise
      1. Muscle fatigue- build up of lactic acid
      2. Dizziness- drop in blood pressure as blood is redistributed / low blood sugar as sugar been used for energy
      3. DOMS- pain in muscles causes by anaerobic exercise
    • Long term (weeks- months) effects of exercise
      1. Change in body shape- fat stores used to provide energy for exercise (increase in muscle Size)
      2. Hypertrophy of heart (bigger+stronger)- heart is muscle and as a result of training SV increases and HR decreases as more blood can be pumped per beat
      3. Bradycardia (lower resting HR)- hypertrophy of heart so heart rate can reduce as heart is stronger and pumps more blood per beat
      4. Improved components of fitness (exercise dependant)