Fitness Studies

Washington, D.C.; San Francisco; Seattle; San Jose, California; Boston and Denver were among the six other fittest metro areas, according to the 10th annual American Fitness Index.

In their study, researchers found energy drink consumers had an abnormally high corrected QT interval, which can cause life-threatening heart arrhythmia.

On average, most study participants met cardiorespiratory guidelines through Zumba Gold, while a few reached a slightly dangerous "vigorous" intensity threshold.

Health club member numbers increased 3.6 percent in 2016 compared to 2015, which equated to a 19.3 percent penetration rate into the America population, according to a report from IHRSA.  

New research found that although hotel fitness facilities can cost as much as $220,000 to build and $16,000 per year to maintain, only 22 percent of guests can be expected to utilize the amenities.

Market Force Information recently surveyed more than 4,000 U.S. health club members and learned that a quarter of them are dissatisfied with their health clubs, but churn at YMCAs is lowest. 

Researchers from the University of Arizona used MRI technology to compare the brain activity of collegiate distance runners with those of age-matched non-exercisers. Their findings were published in Frontiers in Human Neuroscience.