Wearing casual clothes at work promotes increased physical activity, according to a recent study commissioned by the American Council on Exercise (ACE). The study, conducted by University of Wisconsin researchers, showed that employees took an average of 491 more steps on "jeans day" than they did on days in which normal business attire was required. That translates into burning an additional 125 calories per week, the ACE notes. "Over the last 25 years, advances in technology combined with our hectic lifestyles have helped to virtually eliminate physical activity from our daily routines," says Cedric X. Bryant, ACE chief exercise physiologist. "Wearing casual, comfortable clothes to work may be an easy way to encourage us to put physical activity back into our daily lives." For the study, researchers examined 53 healthy men and women whose average age was 42. Each study participant wore a pedometer two days a week (one day dressed casually; the other day dressed in normal work attire) for two weeks. San Diego-based ACE in a non-profit organization that promotes the benefits of physical activity.