Final answer:
Older adults should adapt the Physical Activity Guidelines for Americans recommendations by engaging in regular physical activity but making some modifications based on their capabilities. They should avoid heavy weights and opt for lighter resistance exercises, while also aiming for less intense aerobic activity.
Step-by-step explanation:
According to the Physical Activity Guidelines for Americans, older adults should adapt the recommendations by engaging in regular physical activity. However, they may need to make some modifications based on their capabilities and potential limitations. It is recommended that older adults avoid heavy weights and instead focus on lighter resistance exercises to strengthen muscles. Additionally, they should aim for less intense aerobic activity, such as brisk walking or swimming, while ensuring that they are still meeting the recommended duration of at least 150 minutes per week.