Answer: Ambulatory monitoring of the electrocardiogram in 100 healthy 14 to 16 year old boys showed heart rates ranging from 45 to 200 beats/minute during the day and from 23 to 95 beats/minute during sleep.
Answer:
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The answer is D! Hope I helped!
False, injuries are spontaneous and can happen to anyone flexible or not. However I do not know the statistics behind flexibility effecting injuries.
The answer is C
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