For example, people who bought home exercise equipment were 73 percent more likely to start exercising. But that expensive equipment did not keep them active over the long haul.
On the other hand, people who have a strong desire to accomplish goals were more likely to work out and stick with it. But this trait alone didn't seem to be enough to initially get them off the couch.
Researchers say, whatever inspires people to exercise, they should realize that the toughest part is keeping it up.