Exercise-Induced Cardiac Fatigue in Recreational Ultramarathon Runners at Moderate Altitude: Insights From Myocardial Deformation Analysis.

ABSTRACT:

Background

Controversy exists on the actual occurrence of exercise-induced cardiac fatigue (EICF) with ultraendurance exercise, as well as on whether factors such as age or training status might predispose to this condition. The present study aimed to assess the occurrence of EICF among recreational ultramarathon runners, as well as to determine potential predictive factors.

Methods

Nineteen male recreational runners (42 ± 12yrs) participated in a 55-km trial race at moderate altitude (1,800-2,500 m). Participants were evaluated before and after the race using Doppler echocardiography and myocardial deformation analysis. EICF was determined as a reduction >5% of either left ventricular global longitudinal strain (LVGLS) or right ventricular free wall strain (RVFWS). Demograp

SUBMITTER: Wolff S 

PROVIDER: S-EPMC8818846 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature