Sprints versus marathons for heart health

Flat-out Sprinting

Flat-out Sprinting

I read this story (http://www.telegraph.co.uk/health/healthnews/8429518/Sprints-better-than-marathon-for-heart-health.html) when it came out last month.  It shows how multiple, maximal effort sprints had similar effects on health compared to long duration exercise.  But after chatting with some people in the gym, I have a couple of problems with the practical implications of it…

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