Aerobic and Anaerobic Exercise

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Across
  1. 3. Produced by both aerobic and anaerobic systems
  2. 7. Scientific name for oxygen debt
  3. 9. When oxygen supply matches demand during steady exercise
  4. 12. Energy system using oxygen
Down
  1. 1. Oxygen needed to break down lactic acid
  2. 2. Energy system without oxygen
  3. 4. By-product of anaerobic respiration
  4. 5. Main fuel source for respiration
  5. 6. Time needed for the body to recover from exercise
  6. 8. Waste gas produced during respiration
  7. 10. How long an activity lasts
  8. 11. Feeling of extreme physical tiredness
  9. 13. Gas needed for aerobic respiration
  10. 14. How hard the body is working