Drawing inspiration from the Borg Scale (originally used for aerobic exercise), Tuchscherer developed a 1–10 lifting scale based on "Reps in Reserve" (RIR) .
By teaching lifters to "listen to their bodies" and adjust weights on the fly, the book helped bridge the gap between intermediate and advanced training. It led to the founding of Reactive Training Systems (RTS) , which has since coached hundreds of world-class athletes. Core Concepts of the Manual The Reactive Training Manual_ Developing Y - Mi...
The "story" of this manual is really the evolution of Mike Tuchscherer’s own training philosophy. Drawing inspiration from the Borg Scale (originally used