Evidence map›Paper›PMID 26335627›Full record

ArticleEuropean journal of applied physiology2015

Acute dietary carbohydrate manipulation and the subsequent inflammatory and hepcidin responses to exercise.

Claire E Badenhorst, Brian Dawson, Gregory R Cox, Coby M Laarakkers, Dorine W Swinkels, Peter Peeling

Abstract read
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In one paragraph

Article in European journal of applied physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.0field-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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
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  9. Effects of cranberry (Journal of the International Society of Sports Nutrition · 2017
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  16. Iron Status and Physical Performance in Athletes.Life (Basel, Switzerland) · 2023
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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

6 authors at 2 institutions in 2 countries.

Claire E BadenhorstSchool of Sport Science, Exercise and Health, The University of Western Australia, M408, 35 Stirling Hwy, Crawley, WA, 6009, Australia. badenhorstclaire1@gmail.com.
Brian DawsonSchool of Sport Science, Exercise and Health, The University of Western Australia, M408, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
Gregory R CoxSports Nutrition, Australian Institute of Sport, Gold Coast, QLD, Australia.
Coby M LaarakkersDepartment of Laboratory Medicine (LGEM 830), Radboud University Medical Center, Nijmegen, The Netherlands.
Dorine W SwinkelsDepartment of Laboratory Medicine (LGEM 830), Radboud University Medical Center, Nijmegen, The Netherlands.
Peter PeelingSchool of Sport Science, Exercise and Health, The University of Western Australia, M408, 35 Stirling Hwy, Crawley, WA, 6009, Australia.
University of Western Australia · AURadboud University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo examine the effects of 24-h controlled carbohydrate intake on next day pre- and post-exercise inflammatory and hepcidin responses.

methodsIn a crossover design, 12 well-trained endurance athletes (Ht 181.08 ± 7.68 cm; Wt 74.8 ± 11.5 kg, VO 2peak 68.9 ± 7.2 ml kg(-1) min(-1)) completed two experimental (2-day) trials. On day 1, participants completed a glycogen depletion task, including a 16-km run (80 % vVO 2peak) and 5 × 1 min efforts (130 % vVO 2peak) separated by 2-min recovery. Subsequently, strict dietary control was enforced for 24 h, where low carbohydrate (LCHO 3 g kg(-1)) or high carbohydrate (HCHO 10 g kg(-1)) diets were provided. Twenty-four hours later, participants completed an 8 × 3 min interval running session at 85 % vVO 2peak followed by 3-h monitored recovery. Venous blood samples were collected pre-, immediately post- and 3-h post-exercise, which were analyzed for interleukin-6, serum iron, ferritin and hepcidin.

resultsInterleukin-6 was elevated (p < 0.001) immediately post-exercise compared to baseline in both conditions, but was lower in HCHO (p = 0.015). Hepcidin levels were also lower at baseline (p = 0.049) in HCHO, and a large effect (d = 0.72) indicated a trend for lower levels at 3-h post-exercise compared to LCHO. Serum iron was increased post-exercise for both trials (p = 0.001), whereas serum ferritin remained unchanged.

conclusionsTwenty-four hours of controlled low carbohydrate intake resulted in higher baseline hepcidin levels and post-exercise IL-6 responses than a high carbohydrate intake. Such hormone increases may be induced by gluconeogenic signaling of the liver, and may negatively impact an athlete's iron metabolism.

Indexed as

ExerciseAdolescentAdultDietary CarbohydratesFerritinsHepcidinsHumansInterleukin-6IronMaleDietary CarbohydratesFerritinsHepcidinsInterleukin-6IronAthletesCarbohydratesInflammationIron metabolism

Identifiers

PMID26335627
OpenAlexW1229399881

What OpenQuestion holds

Textmetadata
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.