Across
- 3. Number of heart beats per minute
- 4. blood cells Cells that carry oxygen
- 8. Heart rate when relaxed and not exercising
- 10. Amount of blood pumped per heartbeat
- 12. Amount of blood pumped per minute
- 13. Body adjusting to new conditions (e.g. altitude)
- 14. Ability to exercise for a long time
Down
- 1. Highest heart rate a person can reach
- 2. Exercise using oxygen to release energy
- 5. How well the body performs physical activity
- 6. Height above sea level
- 7. Protein in red blood cells that binds oxygen
- 9. Range of heart rates for different exercise intensities
- 11. Gas needed by cells to release energy
- 13. exercise Exercise without enough oxygen (high intensity)