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cillapris cillapris
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6 years ago
The ACSM recommends exercising at ____ to build fitness.
 a. your maximum heart rate for 20 minutes
 b. 50 to 85 percent of your maximum heart rate
  c. 85 to 90 percent of your maximum heart rate
  d. 25 percent of your maximum heart rate
 e. full capacity each exercise session
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dianardodianardo
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6 years ago
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cillapris Author
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6 years ago
You make an excellent tutor!
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Yesterday
this is exactly what I needed
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2 hours ago
Thanks
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