What is the maximal heart rate (MHR) recommendation for NASM's "stage II" cardio program for obese clients?

In NASM's program design, particularly for the "stage II" cardio program tailored for clients with obesity, the recommendation for maximal heart rate (MHR) is set between 76-85%. This range is specifically aimed at improving aerobic capacity while also ensuring that the workout intensity is appropriate and manageable for individuals who may be starting from a lower fitness baseline.

This level of intensity is beneficial for encouraging weight loss and improving cardiovascular fitness without overwhelming the client. The goal is to keep participants engaged and motivated in their workouts, allowing them to build up their stamina and progressively enhance their cardiovascular health.

Working within the 76-85% MHR range promotes significant effort while still allowing the body to adapt to the increased demands of exercise, particularly for those who may not be accustomed to higher intensity workouts. Furthermore, this stage combines the right amount of challenge and safety, reducing the risk of injury and ensuring that clients can sustain their participation over time.