Fitness crossword

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Across
  1. 2. you can only ___ if you make your workouts harder
  2. 5. the first part of a workout
  3. 7. the third part of a workout
  4. 9. a type of workout with bursts of intense work with rests in between
  5. 10. a cardiovascular endurance exercise involving water
  6. 11. the second part of a workout
Down
  1. 1. an abbreviation for how fast you want your heart beating during exercise
  2. 3. working more often and more intense than usual for you
  3. 4. the way your body is made up from fat and muscle. body ___
  4. 6. a way to improve flexibility
  5. 8. a type of exercise that increases range of motion