SynthesisNutrients2020
Effects of Rapid Weight Loss on Judo Athletes: A Systematic Review.
Synthesis in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
42 citing papers in PubMed, 4 syntheses or guidelines pooled it, 95 citations in OpenAlex.
- Pooled it
- Pooled it
- Effects of Different Rapid Weight Loss Strategies and Percentages on Performance-Related Parameters in Combat Sports: An Updated Systematic Review.International journal of environmental research and public health · 2023Pooled it
- Rapid Weight Loss of Up to Five Percent of the Body Mass in Less Than 7 Days Does Not Affect Physical Performance in Official Olympic Combat Athletes With Weight Classes: A Systematic Review With Meta-Analysis.Frontiers in physiology · 2022Pooled it
- Probiotic supplementation improves body composition, lipid profiles, and fatty acid metabolism in combat sports athletes during the weight reduction phase.Journal of the International Society of Sports Nutrition · 2026Trial
- Making weight makes sense: relative performance gains after rapid weight loss in powerlifting: a randomized controlled trial.Journal of the International Society of Sports Nutrition · 2025Trial
- Kinesiophobia and Psychological Readiness of Return to Sport in High-Performance Judokas After an Injury: A Cross-Sectional Study.Medicina (Kaunas, Lithuania) · 2026Observational
- Effects of acute high-intensity exercise on heart rate variability following rapid weight loss in elite wrestlers.Scientific reports · 2026Article
- Latent profiles of pre-competition psychological states in young Chinese judo athletes: associations with depression and mental toughness.Frontiers in public health · 2026Article
- Cutting weight, gaining stress: the hidden battle that outweighs fight day tension in kickboxing.Frontiers in psychology · 2026Article
- Effects of rapid weight loss and rapid weight regain on oxidant status and muscle damage in judo athletes.Frontiers in physiology · 2026Article
- Sleep quality in Olympic and non-Olympic combat sports: associations with sex, rapid weight loss, and sport age (a PSQI-based analysis).Frontiers in psychology · 2026Article
- Article
- Weight loss magnitude, prevalence and methods among male and female Olympic-level judo athletes.BMC sports science, medicine & rehabilitation · 2025Article
- The impact of low energy availability risk on pre-competition physiological function in Chinese female combat athletes.Journal of the International Society of Sports Nutrition · 2025Article
- Weight loss practices in Chinese national and international-level Sanda athletes.Journal of the International Society of Sports Nutrition · 2025Article
- Systematic Review and Meta-Analysis of Risk Factors for Dehydration and the Development of a Predictive Scoring System.Healthcare (Basel, Switzerland) · 2025Review
- Rapid weight loss and combat athletes: a study on psychological resilience and mechanical hyperalgesia.Frontiers in psychology · 2025Article
- A scoping review of rapid weight loss in judo athletes: prevalence, magnitude, effects on performance, risks, and recommendations.Physical activity and nutrition · 2024Article
- Identifying and Analyzing Low Energy Availability in Athletes: The Role of Biomarkers and Red Blood Cell Turnover.Nutrients · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 4 institutions in 3 countries.
Funding
Abstract
Rapid weight loss (RWL) is commonly practiced among judo athletes. Although it helps them to gain the advantage over their lighter opponents, previous studies have shown that RWL can have a negative impact on the athlete's performance and overall well-being. This systematic review aimed to synthesize the evidence that examines the influence of rapid weight loss on physiological parameters, biomarkers, and psychological well-being in judo athletes. We followed the preferred reporting items for systematic reviews and meta-analyses guidelines. We searched for studies on Web of Science and PubMed that elaborate on the influence of ≥5% RWL achieved over ≤7-day period in judokas. Out of 52 studies initially found, 14 studies met our eligibility criteria and were included in the review. In total, we examined data from 1103 judo athletes. Retrieved studies showed conflicting data concerning physiological parameters and biomarkers, while psychological well-being parameters were more consistent than physiological and biomarkers. The feeling of tension, anger, and fatigue significantly increased while a decrease in vigor was demonstrated among athletes who lost weight rapidly. The evidence on the impact of RWL on performance remains ambiguous. More studies under standardized conditions are needed in order to provide firm evidence. Considering the harmful effects of RWL outlined in the existing literature, it is important to determine and monitor athlete's minimal competitive weight to prioritize the health and safety of the athlete, emphasize fairness, and ultimately benefit the sport.
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What OpenQuestion holds
Registered trials
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.