Which statement regarding aerobic conditioning is true for healthy older adults?

The recommendation by the American College of Sports Medicine (ACSM) for healthy older adults to engage in aerobic conditioning at 60-80% of heart rate reserve (HRR) is based on research indicating that this intensity level is effective for improving cardiovascular fitness in this population. Training within this range can enhance aerobic capacity, promote better overall health, and decrease the risk of chronic conditions. This intensity is also considered safe for older adults who are generally healthy, as it provides sufficient stimulus for cardiovascular adaptation while minimizing the risk of injury or adverse effects.

The understanding of heart rate reserve is crucial in establishing appropriate exercise intensities; it incorporates both resting heart rate and maximum heart rate to determine individual workout thresholds. Exercising at this specified intensity helps older adults maintain functional fitness, which is vital for daily living activities and overall quality of life.

Other statements present inaccuracies regarding physiological changes with age, such as the peak of VO2max and the activity levels achievable by older adults, and implying a lack of fitness with sedentary lifestyles.