Age-associated changes in cardiovascular structure and function: a fertile milieu for future disease

Area of Science:

• Cardiovascular Physiology
• Gerontology

Background:

• The aging cardiovascular system undergoes significant structural and functional changes even in healthy individuals.
• Arterial stiffening, left ventricular hypertrophy, and reduced diastolic filling are common age-related alterations.

Purpose of the Study:

• To summarize the key age-associated changes in the cardiovascular system.
• To highlight the impact of aging on cardiovascular function and exercise capacity.

Main Methods:

• Review of age-related cardiovascular adaptations.
• Analysis of changes in blood pressure, cardiac structure and function, and aerobic capacity.

Main Results:

• Aging causes arterial thickening, stiffening, and increased systolic blood pressure.
• Left ventricular function is preserved, but diastolic filling declines; aerobic capacity decreases due to reduced heart rate and oxygen utilization.
• Cardiac adrenergic receptor function is impaired, contributing to reduced exercise performance.

Conclusions:

• Normative cardiovascular aging lowers the threshold for cardiovascular disease development.
• Understanding these changes is crucial for managing cardiovascular health in older populations.