Left Ventricular Function After Prolonged Exercise in Equine Endurance Athletes.

ABSTRACT:

Background

Prolonged exercise in human athletes is associated with transient impairment of left ventricular (LV) function, known as cardiac fatigue. Cardiac effects of prolonged exercise in horses remain unknown.

Objectives

To investigate the effects of prolonged exercise on LV systolic and diastolic function in horses.

Animals

Twenty-six horses competing in 120-160 km endurance rides.

Methods

Cross-sectional field study. Echocardiography was performed before and after rides, and the following morning, and included two-dimensional echocardiography, anatomical M-mode, pulsed-wave tissue Doppler imaging, and two-dimensional speckle tracking. Correlation between echocardiographic variables and cardiac troponin I was evaluated.

Results

Early diastolic myocar

SUBMITTER: Flethoj M 

PROVIDER: S-EPMC5094507 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature