评论
打印
Losing weight is easier when there is money on the line, U.S. researchers said on Tuesday. They said weight-loss programs that award people with money-and remind them of the cash they stand to lose if they fail-provided with a powerful incentive to lose weight compared with more conventional approaches.(1)____(2)____ Dr. Kevin Volpp of the University of Pennsylvania School of Medicine was looking for an effective way to treat obese, a &owing problem that carries serious health risks.(3)____ He said many weight-loss programs fail before people are being asked to make sacrifices now.(4)____
Volpp and colleagues studied two kinds of incentive programs for weight loss. One was a lottery-based design in which participants played a lottery and were allowed to collect their winnings if they met their weight-loss target. The other was a deposit contract, in which participants invested small amount of their own money which they would lose at the end of the month if they succeeded to reach their goals.(5)____(6)____ People in this group also got a bonus if they met their goal.
The researchers resigned 57 0bese but otherwise healthy people to one of these two groups or a control group, in which people were simply weighed at the end of each month.(7)____ All were aimed to lose 7.26 kg by the end of four months.(8)____ People in the incentive groups lost far more weight than that who got no pay for their efforts, with about half of the participants in each group meet their weight loss goals.(9)____(10)____
