Across
- 4. speed your heart beats
- 8. duration
- 10. what sort of exercise
- 11. Being specific
- 13. energy source
- 15. Exercise and sports
- 16. Difficulty
Down
- 1. different options
- 2. long duration exercise
- 3. physical or mental effort
- 5. short and intense
- 6. Maximum
- 7. frequent
- 9. ability to keep going
- 12. getting hurt
- 14. breaks or timeout