High-intensity incidental physical activity is a fancy way of saying that you should exert yourself while you’re doing the things you normally do, like shopping, housework, yard work, and walking.  Exertion is considered “high intensity” when you push yourself to six times your normal energy expenditure. So, it’s different for everyone, depending on your fitness level.

“My maximal effort isn’t going to be anywhere near the maximal effort of LeBron James. He’s going to have a much higher physical fitness capability,” says Hallie Zwibel, DO, MPH a  director of sports medicine at the New York Institute of Technology Center for Sports Medicine. “But we’re both pushing our bodies to new limits.”

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