Final answer:
The AFAA doesn't specify an exact number of repetitions for group exercise. Instead, it follows the HHS guidelines that recommend muscle-strengthening activities that involve all major muscle groups at a moderate or greater intensity 2 or more days per week, with a combination of aerobic activities totaling 150 to 300 minutes of moderate-intensity, or 75 to 150 minutes of vigorous-intensity each week.
Step-by-step explanation:
The number of repetitions recommended by the AFAA (Aerobics and Fitness Association of America) for group exercise can vary based on the type and intensity of the workout session. The AFAA guidelines align with those provided by the Department of Health and Human Services (HHS), which advise adults to engage in muscle-strengthening activities that involve all major muscle groups on 2 or more days per week. These activities should be performed at a moderate or greater intensity and should include a variety of exercises and movements that target different muscle groups.
In addition, the HHS recommends at least 150 to 300 minutes per week of moderate-intensity aerobic activity, or 75 to 150 minutes per week of vigorous-intensity aerobic physical activity for substantial health benefits. Group exercise instructors should structure their classes to accommodate these guidelines, focusing on the number of repetitions that enable participants to reach an appropriate level of intensity while considering their fitness levels and safety. Therefore, there is not a one-size-fits-all answer to the number of repetitions; it should be determined based on the specific context of the group exercise program and the goals of the participants.