Tag: autoregulation

  • Reps in reserve

    Reps in reserve

    Reps in reserve is the strength-training cousin of Borg’s perceived exertion scale, applied per set rather than per session. Unlike the other measurement instruments in this series, RIR has no single inventor — it came from a coach in 2008, a research group in 2012, and another in 2016. A history of how a powerlifting…

  • RPE: from a kiosk to Afitpilot

    RPE: from a kiosk to Afitpilot

    Three years ago I set up an RPE kiosk at a CrossFit box: an iPad on a stand near the exit, copied from the format you tap on the way out of an airport. After each WOD, athletes tapped a number from 1 to 10. This post covers what RPE is, what the kiosk actually…