The findings of this study is no surprise to anyone here at DE, but we thought it was noteworthy enough to post here. The following is a key excerpt from a recent HealthDay News article that discusses some of its highlights:
Study author Ian Janssen, an associate professor who studies physical activity at Queen’s University in Ontario, said the findings offer evidence that could convince the inactive to get up and start moving.
For example, “one of the reasons [people] tell you that they don’t engage in physical activity is that it takes up so much of their time,” Janssen said. “We were able to show that if black women engage in an hour of vigorous activity like jogging or swimming, that would extend their lives by 11 hours” — or 11 hours for every hour spent exercising, he added.
Although there were some inconclusive things about this study, why take the chance when nearly everyone has at least 30 minutes of day for some sort of physical activity? From the article:
In the new study, researchers examined American health statistics from 1990 to 2006, including death rates and surveys about physical activity, and extrapolated them. They reported their findings online Dec. 11 in the American Journal of Preventive Medicine.
The study findings are a bit tricky to understand since they examine only the possible effects of physical activity at one point in a person’s life, not throughout their lives.
For example, the study found that white women who were physically active at age 20 were expected to live three years longer than others. But that’s based only on reports of how active they were at age 20 — it’s not clear whether they had to remain active over the rest of their lives to get those extra years.