By Chase Purdy, Quartz:
Researchers at Harvard University were working with a pretty well-established idea: “Higher fitness levels would be associated with lower rates of incident cardiovascular disease.” Not exactly a groundbreaking observation.
But what was interesting was the reason for their work. What they hoped to figure out was whether there exists an easy, in-person way that doctors could assess heart disease risk in their patients. It turns out, it might be as simple as asking people to do push-ups, according to a new study published Feb. 15 in the Journal of the American Medical Association.
As part of their research, the scientists followed 1,104 firefighters from 10 Indiana-based fire departments for a decade. When the fire fighters would see the their local doctors for routine check-ups, they were also checked for the number of pushups they could complete.
A physician would pull out a metronome and set it at 80 beats per minute. Then the firefighters would be counted for the number of pushups they could complete until they reached 80, missed three or more beats, or stopped entirely because of exhaustion.
Over the 10 years, the researchers reported noticing significantly fewer signs of heart disease-related issues among the firefighters who could complete a greater number of pushups. Among the people who could complete more than 40, there was a 96% reduction in the cardiovascular disease incidents compared to those who could complete fewer than 10.
Read the full story here.