Final answer:
Successful participants in the National Weight Control Registry typically exercise for about one hour daily, 6-7 days a week, coupled with a low-calorie diet and other healthy behaviors.
Step-by-step explanation:
Successful members of the National Weight Control Registry (NWCR) spend, on average, about one hour per day engaged in exercise for 6-7 days each week. This high level of activity, combined with a low-calorie, low-fat diet, is a common approach taken by these individuals to achieve and maintain significant weight loss. In addition to regular exercise, these members often practice other healthy habits such as eating breakfast daily, watching less than ten hours of television per week, and monitoring their weight regularly.