Metabolic flexibility associated with flight time among combat pilots of the Brazilian air force.
FAB
Fighter pilots
Gravity transitions
Health
Metabolomics
NMR
Journal
Metabolomics : Official journal of the Metabolomic Society
ISSN: 1573-3890
Titre abrégé: Metabolomics
Pays: United States
ID NLM: 101274889
Informations de publication
Date de publication:
25 May 2024
25 May 2024
Historique:
received:
01
12
2023
accepted:
02
05
2024
medline:
26
5
2024
pubmed:
26
5
2024
entrez:
25
5
2024
Statut:
epublish
Résumé
Fighter pilots must support the effects of many stressors, including physical and psychological exertion, circadian disturbance, jet lag, and environmental stress. Despite the rigorous selection of military pilots, those factors predispose to failures in physiological compensatory mechanisms and metabolic flexibility. We compared through NMR-based metabolomics the metabolic profile of Brazilian F5 fighter pilots with different flight experiences vs. the control group of non-pilots. We hypothesized that combat pilots have metabolic flexibility associated with combat flight time. We evaluated for the first time 34 Brazilian fighter pilots from Santa Cruz Air Base (Rio de Janeiro, RJ) allocated into three groups: pilots with lower total accumulated flight experience < 1,100 h (PC1, n = 7); pilots with higher total accumulated flight experience ≥ 1,100 h (PC2, n = 6); military non-pilots (CONT, n = 21). Data collection included anthropometric measurements, total blood count, lipidogram, markers of oxidative stress, and serum NMR-based metabolomics. In comparison with controls (p < 0.05), pilots exhibited decreased levels of white blood cells (-13%), neutrophils (-15%), lymphocytes (-20%), alfa-glucose (-13%), lactate (-26%), glutamine (-11%), histidine (-20%), and tyrosine (-11%), but higher isobutyrate (+ 10%) concentrations. Significant correlations were found between lactate vs. amino acids in CONT (r = 0.55-0.68, p < 0.001), and vs. glutamine in PC2 (r = 0.94, p = 0.01). Fighter pilots with lower experience showed a dysregulation in immune-metabolic function in comparison with controls, which seemed to be counteracted by the accumulation of flight hours. Those findings might have implications for the health preservation and operational training of fighter pilots.
Identifiants
pubmed: 38796596
doi: 10.1007/s11306-024-02124-z
pii: 10.1007/s11306-024-02124-z
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
63Subventions
Organisme : JCNE-FAPERJ
ID : E-26/201.259/2021
Organisme : CAPES-PROCAD
ID : 88887.387712/2019-00
Organisme : CAPES-PROCAD
ID : 88887.387712/2019-00
Organisme : CAPES-PROCAD
ID : 88887.387712/2019-00
Organisme : CAPES-PROCAD
ID : 88887.387712/2019-00
Informations de copyright
© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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