For a patient on beta blockers, an RPE of what range corresponds to 60% max heart rate?

The correct answer relates to the understanding of how perceived exertion (RPE) aligns with heart rate during exercise, especially in patients taking beta blockers. Beta blockers can limit the heart rate response to exercise, meaning that the target heart rate may not reflect the actual physical exertion the patient is experiencing.

An RPE range of 12-13 corresponds to a moderate exercise intensity, generally associated with approximately 60% of a person's maximal heart rate for someone who is not taking a beta blocker. In patients on beta blockers, their maximum heart rate is reduced, so an RPE in this range is more representative of the exertion they would feel at that 60% intensity.

Understanding this connection is crucial because it allows therapists to gauge exercise intensity using the RPE scale, which is particularly helpful for those individuals whose heart rate response may be blunted due to medication. In geriatric populations, where heart rate responses may vary due to age and medications, using RPE is a valuable strategy to ensure safe and effective exercise programs.