Why the study?
Prospective data on the effect of exercise duration and intensity on post-exercise cardiac impairment are limited, and whether progressively longer running distances elicit greater cardiac impairment remains unclear.
Does progressively longer endurance exercise duration elicit greater cardiac impairment in athletes?
Population
49 athletes
Comparison
Trail-running races of 25km vs 50km vs 80km vs 160km
Design
Prospective observational study
Follow-up
Pre- and post-race
Authors
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Cardiac changes after runs of varying lengths warrant similar post-event monitoring; challenges duration-centric models and leaves open intensity as key driver.
Does progressively longer endurance exercise duration elicit greater cardiac impairment in athletes?
Exercise-induced cardiac fatigue following endurance running is driven more by exercise intensity than by the duration of the race.
Coates et al. (2020) studied this question.
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