Interval training has muscle for 2014

... to an annual fitness trends survey out today. Previous hot trends that didn't make the new top 20 list: Zumba, Pilates, spinning, kickboxing, barefoot walking and running, and stability-ball workouts. The American College of Sports Medicine ...

http://www.thestarpress.com/needlogin?type=login&redirecturl=http%3A%2F%2Fwww.thestarpress.com%2Fapps%2Fpbcs.dll%2Farticle%3FAID%3D2013310250003%26nclick_check%3D1