Evidence map›Paper›PMID 28899914›Full record

Trial reportPhysiological reports2017

Military training elicits marked increases in plasma metabolomic signatures of energy metabolism, lipolysis, fatty acid oxidation, and ketogenesis.

J Philip Karl, Lee M Margolis, Nancy E Murphy, Christopher T Carrigan, John W Castellani, Elisabeth H Madslien, Hilde-Kristin Teien, Svein Martini, Scott J Montain, Stefan M Pasiakos

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Physiological reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Metabolomics of testosterone enanthate administration during severe-energy deficit.Metabolomics : Official journal of the Metabolomic Society · 2022
    Trial
  4. Trial
  5. Metabolomic profiles are reflective of hypoxia-induced insulin resistance during exercise in healthy young adult males.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
    Trial
  6. Trial
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Performance nutrition for cold-weather military operations.International journal of circumpolar health · 2023
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Military training-related abdominal injuries and diseases: Common types, prevention and treatment.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

J Philip KarlMilitary Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts james.p.karl.civ@mail.mil.
Lee M MargolisMilitary Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts.
Nancy E MurphyMilitary Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts.
Christopher T CarriganMilitary Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts.
John W CastellaniThermal and Mountain Medicine Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts.
Elisabeth H MadslienNorwegian Defense Research Establishment, Kjeller, Norway.
Hilde-Kristin TeienNorwegian Defense Research Establishment, Kjeller, Norway.
Svein MartiniNorwegian Defense Research Establishment, Kjeller, Norway.
Scott J MontainMilitary Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts.
Stefan M PasiakosMilitary Nutrition Division, U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts.
U.S. Army Research Institute of Environmental Medicine · USNorwegian Defence Research Establishment · NOUnited States Army · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Military training studies provide unique insight into metabolic responses to extreme physiologic stress induced by multiple stressor environments, and the impacts of nutrition in mediating these responses. Advances in metabolomics have provided new approaches for extending current understanding of factors modulating dynamic metabolic responses in these environments. In this study, whole-body metabolic responses to strenuous military training were explored in relation to energy balance and macronutrient intake by performing nontargeted global metabolite profiling on plasma collected from 25 male soldiers before and after completing a 4-day, 51-km cross-country ski march that produced high total daily energy expenditures (25.4 MJ/day [SD 2.3]) and severe energy deficits (13.6 MJ/day [SD 2.5]). Of 737 identified metabolites, 478 changed during the training. Increases in 88% of the free fatty acids and 91% of the acylcarnitines, and decreases in 88% of the mono- and diacylglycerols detected within lipid metabolism pathways were observed. Smaller increases in 75% of the tricarboxylic acid cycle intermediates, and 50% of the branched-chain amino acid metabolites detected were also observed. Changes in multiple metabolites related to lipid metabolism were correlated with body mass loss and energy balance, but not with energy and macronutrient intakes or energy expenditure. These findings are consistent with an increase in energy metabolism, lipolysis, fatty acid oxidation, ketogenesis, and branched-chain amino acid catabolism during strenuous military training. The magnitude of the energy deficit induced by undereating relative to high energy expenditure, rather than macronutrient intake, appeared to drive these changes, particularly within lipid metabolism pathways.

Indexed as

Energy MetabolismMetabolomeMilitary PersonnelCarnitineDiglyceridesFatty AcidsHumansLipolysisMalePhysical Conditioning, HumanSkiingYoung AdultacylcarnitineCarnitineDiglyceridesFatty AcidsEndurance exerciseenergy deficitmetabolismmetabonomicsphysiology

Identifiers

PMID28899914
PMCPMC5599865
OpenAlexW2756287690

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.