Ageing and physical activity: evidence to develop exercise recommendations for older adults

Area of Science:

• Gerontology
• Exercise Physiology
• Public Health

Background:

• Epidemiological studies confirm physical activity's role in reducing age-related diseases and mortality.
• Age-related declines in cardiorespiratory fitness, strength, power, and balance impact daily living.
• Exercise programs can mitigate these declines, preventing functional limitations in adults aged 65+.

Purpose of the Study:

• To review the literature on exercise variables and their impact on functional capacity in older adults.
• To identify the optimal exercise prescription for maintaining independence and delaying morbidity in aging populations.
• To determine the minimum intensity threshold for achieving health benefits through physical activity.

Main Methods:

• Analysis of cross-sectional and longitudinal data on physical activity and functional outcomes.
• Review of exercise intervention studies in older adults (65+ years).
• Literature synthesis focusing on cardiorespiratory fitness, strength, power, balance, and mobility.

Main Results:

• Cardiorespiratory fitness correlates with functional capacity and independence.
• Strength and power are linked to performance in activities of daily living.
• Balance and power are crucial for fall prevention; older adults show physiological adaptation to exercise.

Conclusions:

• Moderately vigorous exercise is necessary to achieve and maintain health benefits.
• Exercise prescriptions should prioritize activities enhancing functional capacity, independence, and delaying morbidity/mortality.
• Recommended activities include brisk walking, strength/power training, balance exercises, and flexibility.