Evidence map›Paper›PMID 36865769›Full record

ArticleBMJ open sport & exercise medicine2023

Energy expenditure, dietary intake and energy availability in female professional football players.

Marcus Smavik Dasa, Oddgeir Friborg, Morten Kristoffersen, Gunn Pettersen, Guy Plasqui, Jorunn Kaiander Sundgot-Borgen, Jan H Rosenvinge

Abstract read
In one paragraph

Article in BMJ open sport & exercise medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  10. Nutritional perspectives in female soccer: a scoping review.Journal of the International Society of Sports Nutrition · 2024
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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

7 authors.

Marcus Smavik DasaDepartment of Health and Care Sciences, UiT The Arctic University of Norway, Tromso, Norway.ORCID 0000-0002-0081-7753
Oddgeir FriborgDepartment of Psychology, UiT The Arctic University of Norway, Tromso, Norway.
Morten KristoffersenDepartment of Sport, Food and Natural Sciences, Western Norway University of Applied Sciences, Bergen, Norway.
Gunn PettersenDepartment of Health and Care Sciences, UiT The Arctic University of Norway, Tromso, Norway.
Guy PlasquiDepartment of Nutrition and Movement Sciences, Maastricht University, Maastricht, Netherlands.
Jorunn Kaiander Sundgot-BorgenDepartment of Sports Medicine, Norwegian School of Sports Sciences, Oslo, Norway.
Jan H RosenvingeDepartment of Psychology, UiT The Arctic University of Norway, Tromso, Norway.ORCID 0000-0003-3485-9641

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: To quantify energy expenditure and intake in professional female footballers playing on a national and/or international level. Second, to determine the prevalence of low energy availability among these players, defined as <30 kcal/kg fat-free mass (FFM)/day. Methods: Fifty-one players completed a 14-day prospective observational study during the 2021/2022 football season. Energy expenditure was determined using the doubly labelled water method. Energy intake was assessed using dietary recalls, while global positioning system determined the external physiological load. Descriptive statistics, stratification and the correlation between explainable variables and outcomes were conducted to quantify the energetic demands. Results: The mean energy expenditure for all players (22±4 years) was 2918±322 kcal. Mean energy intake was 2274±450 kcal, resulting in a discrepancy of ~22%. Carbohydrate intake was below the recommended guidelines on match day at 4.5±1.9 g/kg. The mean energy availability was 36.7±17.7 kcal/kg FFM/day on matchday and 37.9±11.7 kcal/kg FFM/day on training days, resulting in a prevalence of 36% and 23% for low energy availability during the observational period, respectively. Conclusion: These elite female football players displayed moderate energy expenditure levels and failed to meet the recommended levels of carbohydrate intake. In conjunction with inadequate nutritional periodisation, this will likely hamper performance through inadequate muscle glycogen resynthesis. In addition, we found a considerable prevalence of low energy availability on match and training days.

Indexed as

CarbohydratesEnergy expenditureFemale athlete triadFootballNutrition

Identifiers

PMID36865769
PMCPMC9972418

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Registered trials

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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.