From weighted batons in the 1920s to the "revolutionary" crunch machines of the '80s, there has always been a newer and better exercise fad to keep people fit and healthy.
Now we can watch a sample of each of them in a 100-year history of workout routines in three minutes and 30 seconds.
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The video features Blogilates founder Cassey Ho, and was created by Mode studios, which has built a series of 100-year roundup videos.
Watch the video to find out more... three more, two more...
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