At its best, exercise should be effective and fun, because if you don't enjoy it, you aren't likely to keep it up. While we mock some old-school fitness techniques and trends, there are lessons and moves to be learned from popular exercise trends of the past. (Think Buns of Steel, The Firm, and Jane Fonda).
In celebration of these totally righteous retro workouts, we're spotlighting some classic and cool exercises that should never go out of style, like roller skating. Today, we pay homage to the heart-pumping, youthful, and joyous trampoline you loved as a kid. Why should you jump right in and turn the beloved jumpy into workout equipment? Find out and have some fun getting into old-school shape.