Key result
Mountain ultramarathons linked to reduced pulmonary and inspiratory muscle function, including ~20% lower PEF.
Why the study?
Within-race data on the time course of pulmonary function during a mountain ultramarathon, sex differences, and associations with running speed and fatigue were needed.
Does a 107-km mountain ultramarathon reduce pulmonary and inspiratory muscle function in athletes?
Population
47 athletes (29 males and 18 females; 41 ± 5 years) running a 107-km MUM
Comparison
Pre-race vs during-race vs post-race assessments
Design
Observational cohort study
Authors
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Novel pulmonary data in MUM may guide athlete monitoring; hypothesis-generating and requires prospective validation before practice implications.
Observational (n=32)
No
Does a 107-km mountain ultramarathon reduce pulmonary and inspiratory muscle function in athletes?
Standardized Mean Difference: 0.58
p-value: p=<0.001
A mountain ultramarathon induces significant declines in pulmonary and inspiratory muscle function that parallel drops in running speed.
Martínez‐Navarro et al. (2021) conducted an observational in Healthy ultra-endurance athletes (n=32). 107-km mountain ultramarathon vs. Pre-race baseline was evaluated on Peak expiratory flow (PEF) change from pre- to post-race (d = 0.58, p=<0.001). Completion of a 107-km mountain ultramarathon resulted in significant reductions in pulmonary and inspiratory muscle function, including a 20.3% decrease in peak expiratory flow.
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