Evidence map›Paper›PMID 40254934›Full record

ArticleJournal of the International Society of Sports Nutrition2025

The impact of low energy availability risk on pre-competition physiological function in Chinese female combat athletes.

Yiheng Liang, Yuxuan Li, Yan Chen, Kun Meng, Fanyang Zhou, Yiran Pei, Yong Liu, Junqiang Qiu

Abstract read
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

8 authors.

Yiheng LiangBeijing Sport University, Department of Exercise Biochemistry, Exercise Science School, China.ORCID 0000-0003-3259-2365
Yuxuan LiBeijing Sport University, Department of Exercise Biochemistry, Exercise Science School, China.
Yan ChenBeijing Sport University, Department of Exercise Biochemistry, Exercise Science School, China.
Kun MengBeijing Sport University, Department of Exercise Biochemistry, Exercise Science School, China.
Fanyang ZhouBeijing Research Institute of Sports Science, Beijing, China.
Yiran PeiBeijing Research Institute of Sports Science, Beijing, China.
Yong LiuBeijing Research Institute of Sports Science, Beijing, China.
Junqiang QiuBeijing Sport University, Department of Exercise Biochemistry, Exercise Science School, China.ORCID 0000-0001-8313-9216

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLow energy availability (LEA) can negatively impact athletes' physiological function and performance. This study aims to examine the prevalence of LEA in Chinese female combat athletes and monitor changes in physiological function and performance during the pre-competition period.

methodWe assessed the incidence of low energy availability (LEA) and eating disorder (ED) risks in 84 female combat athletes (judo, freestyle wrestling, and sanda) from Beijing using the Low Energy Availability in Females Questionnaire (LEAF-Q) and the Eating Disorder Examination Questionnaire (EDE-Q). From this group, 11 judo athletes who were preparing for competition were selected and divided into a low energy availability (LEA) group and a non-LEA group based on their energy availability levels. Dietary intake, training energy expenditure, body composition, resting metabolic rate, blood markers, and special judo fitness tests were monitored at 4 weeks, 2 weeks, and 0 weeks before the competition.

resultsAmong the 84 athletes, 45.2% of athletes (

conclusionThe current study identified a risk of LEA among Chinese female combat sport athletes, with no significant difference in the prevalence of LEA between elite and recreational athletes. It is essential for Chinese coaches and sports medicine staff to implement LEA-related nutritional education across all performance levels. Moreover, preventive measures during training are recommended to mitigate the impact of LEA on physiological function during the pre-competition weight loss phase.

Indexed as

AthletesEnergy IntakeMartial ArtsRelative Energy Deficiency in SportSports Nutritional Physiological PhenomenaAdolescentAdultAthletic PerformanceBasal MetabolismBody CompositionChinaEast Asian PeopleEnergy MetabolismFeeding and Eating DisordersFemaleHumanscombat athletesfemale athletesLow energy availability

Identifiers

PMID40254934
PMCPMC12013142

What OpenQuestion holds

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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.