Intervals: Do interval training and mix up your routine every 3 weeks and take 1 week off every 4-6 weeks your body is smart and gets used to your routine and adapts thus stopping progress.
Answered 4/23/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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