Trial reportPloS one2017
Muscular fatigue in response to different modalities of CrossFit sessions.
Trial report in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03929380 (Acute Effects of Squat Protocols in Muscular Power, Postural Sway and Tendinous Thickness.), which is not on this map. Cited by 49 papers, 6 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.
Acute Effects of Squat Protocols in Muscular Power, Postural Sway and Tendinous Thickness.
Who cites it
49 citing papers in PubMed, 6 syntheses or guidelines pooled it, 109 citations in OpenAlex.
- Pooled it
- Effects of high-intensity training on jumping performance among athletes: a systematic review with meta-analysis.Scientific reports · 2025Pooled it
- Physiological effects of regular CrossFitFrontiers in physiology · 2023Pooled it
- CrossFit® Training Strategies from the Perspective of Concurrent Training: A Systematic Review.Journal of sports science & medicine · 2020Pooled it
- Characterization of Hormonal, Metabolic, and Inflammatory Responses in CrossFit® Training: A Systematic Review.Frontiers in physiology · 2020Pooled it
- Acute caffeine supplementation in combat sports: a systematic review.Journal of the International Society of Sports Nutrition · 2018Pooled it
- Post-activation performance enhancement (PAPE) and taurine combination improves anaerobic performance in highly trained wrestlers: a double-blind, randomized, crossover study.Journal of the International Society of Sports Nutrition · 2026Trial
- Acute effects of intra-training carbohydrate ingestion in CrossFit® trained adults: a randomized, triple-blind, placebo-controlled crossover trial.European journal of applied physiology · 2025Trial
- Effects of Different Recovery Modalities on Delayed Onset Muscle Soreness, Recovery Perceptions, and Performance Following a Bout of High-Intensity Functional Training.International journal of environmental research and public health · 2023Trial
- Understanding the effects of beetroot juice intake on CrossFit performance by assessing hormonal, metabolic and mechanical response: a randomized, double-blind, crossover design.Journal of the International Society of Sports Nutrition · 2020Trial
- Trial
- Effects of β-alanine supplementation during a 5-week strength training program: a randomized, controlled study.Journal of the International Society of Sports Nutrition · 2018Trial
- Time-Course of Recovery Following a Strength-Power Emphasized CrossfitSports (Basel, Switzerland) · 2026Article
- Biomechanical and Physiological Demands of CrossFit: A Systematic Review.Journal of human kinetics · 2026Review
- From Performance to Health: A Global Scientometric Analysis of the Evolution of CrossFit Research.Sports (Basel, Switzerland) · 2026Article
- Psychobehavioral profiles, competitive progression, and nutritional characteristics in CrossFit® athletes across a national competitive season.Frontiers in sports and active living · 2026Article
- Article
- Comparison of physiological and psychobiological acute responses between high intensity functional training and high intensity continuous training.Sports medicine and health science · 2025Article
- Peer Verbal Encouragement Is More Effective than Coach Encouragement in Enhancing CrossFit-Specific 1-RM Strength, Functional Endurance, and Psychophysiological Assessment Performance.Sports (Basel, Switzerland) · 2024Article
- Acute Effects of 30 g Cyclodextrin Intake during CrossFitJournal of functional morphology and kinesiology · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundCrossFit is a new strength and conditioning regimen involving short intense daily workouts called workouts of the day (WOD). This study assesses muscular fatigue levels induced by the three modalities of CrossFit WOD; gymnastics (G), metabolic conditioning (M) and weightlifting (W). MATERIAL AND
methods34 healthy subjects undertook three WOD (one per week): a G WOD consisting of completing the highest number of sets of 5 pull-ups, 10 push-ups and 15 air squats in 20 min; an M WOD, in which the maximum number of double skipping rope jumps was executed in 8 sets (20 s), resting (10 s) between sets; and finally, a W WOD in which the maximum number of power cleans was executed in 5 min, lifting a load equivalent to 40% of the individual's 1RM. Before and after each WOD, blood lactate concentrations were measured. Also, before, during, and after each WOD, muscular fatigue was assessed in a countermovement jump test (CMJ).
resultsSignificant reductions were produced in the mechanical variables jump height, average power and maximum velocity in response to G; and in jump height, mean and peak power, maximum velocity and maximum force in response to W (P<0.01). However, in M, significant reductions in mechanical variables were observed between pre- and mid session (after sets 2, 4, 6 and 8), but not between pre- and post session.
conclusionsMuscular fatigue, reflected by reduced CMJ variables, was produced following the G and W sessions, while recovery of this fatigue was observed at the end of M, likely attributable to rest intervals allowing for the recovery of phosphocreatine stores. Our findings also suggest that the high intensity and volume of exercise in G and W WODs could lead to reduced muscular-tendon stiffness causing a loss of jump ability, related here to a longer isometric phase during the CMJ.
Indexed as
Identifiers
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.