新聞選輯：Running for exercise 'slows the aging process'
Running for exercise 'slows the aging process'
Last updated: 21 November 2014 at 7am PST
A new study from researchers at the University of Colorado Boulder and Humboldt State University, published in the journal PLOS ONE, finds that senior citizens who run several times a week expend the same amount of energy as a typical 20-year-old when walking.
Seniors who run regularly have "a lower metabolic cost of walking" than older, sedentary adults and seniors who regularly walk for exercise.
"It's been known for a long time that as people age their maximum aerobic capacity, or 'horsepower,' declines, and that is true for runners as well," says study leader Prof. Justus Ortega, from Humboldt State University in Arcata, CA.
"What's new here is we found that old runners maintain their fuel economy," he adds.
The researchers recruited 15 men and 15 women with an average age of 69 who regularly ran or walked for exercise. For this study, "regularly" meant walking or running at least three times a week for a minimum of 30 minutes per workout, for at least 6 months.
After undergoing preliminary health screenings at the University of Colorado Boulder (CU-Boulder) Clinical and Translational Research Center, the subjects were required to walk on a force-measuring treadmill....繼續閱讀