At least 20 minutes.: Apparently your heart has to be at an appropriately elevated rate for at least 20 minutes to gain cardiovascular benefit. Give yourself a few minutes of running to get your heart rate up to that level, then twenty minutes at least from there.
Answered 12/20/2014
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2 doctors weighed in across 2 answers
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A doctor has provided 1 answer
A doctor has provided 1 answer
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