9.2 Training for Aerobic Endurance Puzzle

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Across
  1. 2. The system involving the heart and lungs during exercise
  2. 4. Exercise performed at a constant intensity
  3. 7. Exercise that uses oxygen to produce energy over long periods
  4. 8. Primary energy source used by muscles
  5. 10. The body’s response to repeated exercise stress
  6. 11. Gas required for aerobic energy production
  7. 14. Feeling of tiredness during prolonged exercise
  8. 15. Light activity done before exercise to prepare the body
  9. 16. Structures that transport blood throughout the body
  10. 17. Highest heart rate achievable during exercise
  11. 18. A planned schedule of exercise sessions
  12. 20. Time needed for the body to repair and adapt
  13. 22. Alternating periods of high and low intensity exercise
  14. 23. Gradually increasing exercise demands to improve fitness
  15. 24. Organs that exchange oxygen and carbon dioxide
  16. 25. Cell structures where aerobic energy is produced
Down
  1. 1. The ability to sustain physical activity over time
  2. 3. Organ responsible for pumping blood during exercise
  3. 5. How long an exercise session lasts
  4. 6. The maximum amount of oxygen the body can use during exercise
  5. 9. Desired heart rate zone during aerobic exercise
  6. 12. How often exercise is performed
  7. 13. Movement of blood through the body
  8. 19. How hard the body is working during exercise
  9. 21. Light activity performed after exercise to return body to rest