this IS tumbling The critical drill for strong back tumbling. As Iarov told us in 1994, the rest is “trampoline”. Post by Charltes Leon Tamayo. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Tumblr (Opens in new window) Tumblr Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Like Loading... Published by Rick Mc Career gymnastics coach who loves the outdoors, and the internet. View all posts by Rick Mc