SPEED

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Across
  1. 3. A force such as friction, that operates opposite the direction of motion of a body and tends to prevent or slow down the body's motion.
  2. 5. 220 minus your ... is your maximum heart rate
  3. 7. Process taken place after exercise
  4. 9. Long, continuous steps that quicker than walking but slower than sprinting
  5. 10. Maximum frequency at which it is possible for an individual to cover a distance
Down
  1. 1. The act of inhalation
  2. 2. Exercise without oxygen
  3. 4. How many beats per min your heart does.
  4. 6. Exercise with oxygen
  5. 8. An element we breathe in