Arterial Stiffness and Left Ventricular Diastolic Function in Endurance Athletes

Area of Science:

• Cardiovascular Physiology
• Sports Medicine
• Exercise Science

Background:

• Arterial stiffness and left ventricular diastolic function are key indicators of cardiovascular health.
• Endurance training is known to induce cardiovascular adaptations, but the specific relationship between arterial stiffness and diastolic function in athletes requires further investigation.

Purpose of the Study:

• To investigate the association between arterial stiffness and left ventricular diastolic function in endurance-trained athletes.
• To compare these parameters between endurance-trained athletes and sedentary controls.

Main Methods:

• Carotid-femoral pulse wave velocity was used to measure arterial stiffness.
• Two-dimensional echocardiography assessed left ventricular diastolic function.
• Participants included 16 young male endurance-trained athletes and 9 sedentary men.

Main Results:

• Athletes showed a trend towards lower arterial stiffness compared to controls (P=0.071).
• Athletes had significantly lower transmitral A-waves (P=0.018) and significantly greater left ventricular mass (P=0.034), transmitral E-wave/A-wave ratio (P=0.005), and peak early diastolic mitral annular velocity (P=0.005).
• A significant negative correlation was observed between arterial stiffness and measures of left ventricular diastolic function in athletes (E/A: r=-0.712, P=0.002).

Conclusions:

• Lower arterial stiffness is associated with enhanced left ventricular diastolic function in endurance-trained athletes.
• These findings highlight the cardiovascular adaptations contributing to improved cardiac function with endurance training.