Trial reportPloS one2019
Variations of training load, monotony, and strain and dose-response relationships with maximal aerobic speed, maximal oxygen uptake, and isokinetic strength in professional soccer players.
Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 36 papers, 3 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
36 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- The Correlations Between Training Load Parameters and Physical Performance Adaptations in Team Sports: A Systematic Review and Meta-analysis.Sports medicine - open · 2025Pooled it
- Pooled it
- Detrimental Effects of the Off-Season in Soccer Players: A Systematic Review and Meta-analysis.Sports medicine (Auckland, N.Z.) · 2021Pooled it
- Exploring the Dose-Response Relationship between Resistance-Training Volume and Psychophysiological Responses in Trained Males.Journal of human kinetics · 2026Article
- Review
- Weekly Fluctuations in Internal Load and Neuromuscular Performance Across a 10-Week Training Period in Elite Female Boxers.Life (Basel, Switzerland) · 2026Article
- ATLAS study: Design, athletic performance, and sex-specific regression models for muscle strength in the Greek population.Sports medicine and health science · 2026Article
- Effects of Different Training Load Parameters on Physical Performance Adaptation in Soccer Players: How Complex Intensities Influence The Magnitude of Adaptations.Journal of sports science & medicine · 2025Article
- Beyond physical exhaustion: Understanding overtraining syndrome through the lens of molecular mechanisms and clinical manifestation.Sports medicine and health science · 2025Review
- Competitive Match Running Speed Demands and Impact of Changing the Head Coach in Non-League Professional Football.Sensors (Basel, Switzerland) · 2025Article
- Seasonal Changes in Performance Metrics, Hormonal, Hematological, and Biochemical Markers Among Semi-Professional Soccer Players: Implications for Training and Recovery.Journal of functional morphology and kinesiology · 2025Article
- Subjective Monitoring in Under-20 Soccer Athletes: Affective, Load, Monotony, and Sleep Variations throughout a Competitive Cycle.Clinical practice and epidemiology in mental health : CP & EMH · 2025Article
- Article
- Performance Adaptations to Intensified Training in Top-Level Football.Sports medicine (Auckland, N.Z.) · 2023Review
- Weekly variations of accelerometer variables and workload of professional soccer players from different positions throughout a season.Scientific reports · 2023Article
- Relationships between training load, peak height velocity, muscle soreness and fatigue status in elite-level young soccer players: a competition season study.BMC pediatrics · 2023Article
- Monitoring Internal Training Intensity Correlated with Neuromuscular and Well-Being Status in Croatian Professional Soccer Players during Five Weeks of the Pre-Season Training Phase.Sports (Basel, Switzerland) · 2022Article
- Relationships between Internal Training Intensity and Well-Being Changes in Youth Football Players.Healthcare (Basel, Switzerland) · 2022Article
- Seasonal variations of the relationships between measures of training monotony and strain in professional soccer players.Scientific reports · 2022Article
- Relationships between perceived measures of internal load and wellness status during overseas futsal training camps.PloS one · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study aimed to identify variations in weekly training load, training monotony, and training strain across a 10-week period (during both, pre- and in-season phases); and to analyze the dose-response relationships between training markers and maximal aerobic speed (MAS), maximal oxygen uptake, and isokinetic strength. Twenty-seven professional soccer players (24.9±3.5 years old) were monitored across the 10-week period using global positioning system units. Players were also tested for maximal aerobic speed, maximal oxygen uptake, and isokinetic strength before and after 10 weeks of training. Large positive correlations were found between sum of training load and extension peak torque in the right lower limb (r = 0.57, 90%CI[0.15;0.82]) and the ratio agonist/antagonist in the right lower limb (r = 0.51, [0.06;0.78]). It was observed that loading measures fluctuated across the period of the study and that the load was meaningfully associated with changes in the fitness status of players. However, those magnitudes of correlations were small-to-large, suggesting that variations in fitness level cannot be exclusively explained by the accumulated load and loading profile.
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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.