Exercise is good for us- it is easy to understand the benefits. The article answers questions such as: How rigorous should that exercise be in order to really impact a person’s fitness level? And: If you sit all day at a desk, but still manage to get out and exercise, does that negate your six, seven, or eight hours of sedentary behavior?

These were the types of questions the Boston University School of Medicine team led by Matthew Naylor wanted to answer in the largest study to date focused on understanding the relationship between regular physical activity and a person’s physical fitness.

The study of approximately 2,000 participants from the Framingham Heart Study appears in the European Heart Journal.

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