Via Neatorama, here's all the fitness crazies from the past 100 years in one sweaty video. So grab your leg warmers and a hula hoop and get ready to boogie!
Cosmopolitan: Watch all the fitness crazes of the past 100 years in 100 seconds (VIDEO)
Participants of jumping fitness master class try new moves on trampolines at Go!Sport Convention 2013 in KyivExpoPlaza on Nov. 9, 2013.