Borg CR-10

The Borg Category-Ratio scale or Borg CR-10 scale is a self-report tool to measure the intensity of perceived effort. The Borg CR-10 is similar to the Borg Rating of Perceived Exertion Scale, but ratings are from 0 to 10 rather than 6 to 20.

Theory
The scale scores perceived effort from 0 (no effort at all) to 10 (absolute maximum).

Evidence
The World Health Organization has suggested using the Borg CR-10 scale to assess effort when doing rehabilitation to recover from the effects of COVID-19.

Cost and availability
The Borg CR-10 is copyrighted but is widely available and free to use in many hospitals or health settings, and on websites such as the World Health Organization and CDC.

Learn more

 * Perceived Exertion (Borg scale) - CDC
 * Borg Rating of Perceived Exertion Scale - HealthLink British Columbia
 * Support for rehabilitation: self-management after COVID-19-related illness leaflet - World Health Organization