Key result
After a very long-distance triathlon, athletes with impaired alveolar-capillary membrane diffusing capacity experienced a significantly greater decline in global constructive work compared to those without diffusion impairment (-26% vs -15%, P=0.001).
Why the study?
It was unclear whether athletes with specific exercise-induced pulmonary dysfunctions following a very long-distance triathlon exhibit similar cardiac alterations as those without dysfunctions.
Does a very long-distance triathlon induce cardiac fatigue that is associated with exercise-induced pulmonary impairments in trained male athletes?
Comparison
Athletes with exercise-induced pulmonary dysfunctions vs those without
Design
Observational cohort study
Authors
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Impaired diffusing capacity was associated with greater post-triathlon myocardial decline; hypothesis-generating for pulmonary-cardiac interactions in endurance athletes.
Observational (n=60)
Does a very long-distance triathlon induce cardiac fatigue that is associated with exercise-induced pulmonary impairments in trained male athletes?
Absolute Event Rate: -26% vs -15%
p-value: p=0.001
Impaired alveolar-capillary membrane diffusing capacity after prolonged strenuous exercise is associated with a more significant decline in myocardial function, highlighting a cardiopulmonary link in exercise-induced cardiac fatigue.
Hédon et al. (2024) conducted an observational in Healthy male triathletes (n=60). Impaired alveolar-capillary membrane diffusing capacity post-race vs. Athletes without impaired diffusing capacity was evaluated on Change in global constructive work (p=0.001). After a very long-distance triathlon, athletes with impaired alveolar-capillary membrane diffusing capacity experienced a significantly greater decline in global constructive work compared to those without diffusion impairment (-26% vs -15%, P=0.001).
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