It's 2012, you've made your resolution and got that new gym membership. Now what? A survey of more than 2,600 fitness professionals conducted by the American College of Sports Medicine ranked the top 20 fitness trends for the coming year. But before you roll your eyes, consider that the latest picks aren't just about what's faddish or in fashion -- selections are often based on new research in the field of sports medicine, as well as slow-growing business trends. In other words: many of these areas of consumer fitness are here to stay. "We really wanted to answer the question for both the consumer and the health fitness professional," explains Walter R. Thompson, the Regents' Professor in the Department of Kinesiology and Health, who has been the lead author of the survey since its inception six years ago. "What should they make an investment in?"