Did Swedish psychologist Gunnar Borg is credited with developing the RPE scale?

Yes, Swedish psychologist Gunnar Borg is credited with developing the Rate of Perceived Exertion (RPE) scale. Introduced in the 1960s, the RPE scale is a subjective measure that allows individuals to rate their exertion level during physical activity. It has been widely used in exercise science and sports to help monitor intensity and guide training. Borg's work has significantly influenced how athletes and coaches assess physical effort.