Staying active is a very important part of healthy and active aging. Older adults benefit from a moderate amount of physical activity, such as walking, preferably daily.
A moderate amount of activity can be obtained in longer sessions of less intense activities (such as walking or stationary bicycle riding) or in shorter sessions of more vigorous activities (such as fast walking, rapid bicycle riding, swimming, or walking stairs).
Adequate protein and energy intake is important for the maintenance of your muscle health. If you consume a diet that is too low in protein you may lose muscle mass and be at increased risk for developing sarcopenia, the significant loss of muscle mass and function that can occurs as we age.
HNRCA nutrition research: Read about sarcopenia here.