Jason Karp

The Truth About Excess Post-Exercise Oxygen Consumption (EPOC)

Ever since the fitness industry got a hold of research showing that people burn calories after they work out while they recover from their workout, a whole new argument was born. Exercise stopped being about the exercise and became about what came after. “Do this workout,” trainers and gurus would say, “because you’ll burn four …

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Hill Running

I did a hill workout today. If you want a humbling workout, whether you’re a runner or any other kind of fitness buff, there’s nothing like running hills to humble you.  For runners, hills are a big part of training and racing. The feel of your heart pounding in your chest and your shortness of …

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Race for the Cure

I ran Race for the Cure this morning in Balboa Park in San Diego, thinking about my mom. I have been running Race for the Cure for a number of years, in many different places, including on the campus of the educational testing center in Princeton, New Jersey. Few people have heard of Princeton’s educational …

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Running Economy

On my 5-mile run around Lake Miramar in San Diego today, I thought about economy. People use different amounts of oxygen when running at the same submaximal speeds, and this difference explains why runners with the same VO2max do not cross the finish line together in races. This difference in oxygen use is called running …

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