Exercise and Energy Expenditure: Not What You Think?

Each week I burn up to 1,500 kcals in my two hours of intense ‘spinning’. So you might have thought (like me) that I could indulge in 1,500 kcals worth of extra puddings. Well you (like me) would have thought wrong, at least according to careful animal and human studies described by Pontzer in this month’s Scientific American.[1] Apparently, short of being an absolute coach potato or an extreme sportsman like Mark Spitz, the rest of us burn the same number of Calories per day, adjusted for mass, irrespective of how much we exercise. Apparently the body compensates for activity by consuming less Calories at rest. Says Pontzer, “exercise to stay healthy, but restrict Calories to control weight

Richard Lilford, CLAHRC WM Director

Reference:

  1. Pontzer H. The Exercise Paradox. Scientific American. February 2017.

 

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