In the wacky 1970s

and the man

beautiful way to decorate the wall of any basketball fan

and Ryan Howard (Philadelphia Phillies)

in perfect color and crisp detail

Cardio Workout Perceived Exertion Professional Fitness Wall Chart Poster - Fitnus Corp. Other Water Sports Posters In the wacky 1970sA must for the wall of any gym! This is the famed Gunnar Borg's "Rating of Perceived Exertion" scale you'll find on the walls of professional trainers everywhere, used in evaluating their clients' cardiovascular health. Featuring the 1 to 10 scale laid out attractively by color with exertion levels, from "Nothing" to "Very, Very Heavy".