If you find it difficult to stick with a fitness program, join the club. Roughly 50 percent of all healthy adults who begin a new exercise plan drop out within the first six months. Even more surprising are reports from the National Center for Health Statistics showing that only 32 percent of adults in this country engaged in regular leisure-time physical activity of any kind in 2001. That means most Americans aren't even getting the minimum amount of recommended physical activity, which, according to the American College of Sports Medicine, is 20 to 60 minutes three to five times per week. These humbling statistics are a reminder of how important it is to be intentional about our fitness goals. Now that it's the new year, perhaps you want to make a new start. Here's how you can ensure you'll be among the 50 percent who stay true to their fitness plans.