Survey predicts the top 20 fitness trends for 2015 . Dance workout program debuts on the list , ranking ninth this year . Certified fitness professionals have taken the No . 1 position for the past five years . Fitness programs for older adults moves to No . 2 as baby boomers hit the gym .
Survey predicts the top 20 fitness trends for 2012 . Dance workout Zumba debuts on the list , ranking ninth this year . Certified fitness professionals have taken the No . 1 position for the past five years . Fitness programs for older adults moves to No . 3 as baby boomers hit the gym .