Trial reportNutrients2021
The Dose-Effects of Caffeine on Lower Body Maximal Strength, Muscular Endurance, and Rating of Perceived Exertion in Strength-Trained Females.
Trial report in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 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
10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 9 citations in OpenAlex.
- Acute caffeine ingestion and exercise performance in women: a systematic review and meta-analysis of menstrual-cycle phase and hormonal contraceptive status.Frontiers in nutrition · 2026Pooled it
- Ergogenic Aids to Improve Physical Performance in Female Athletes: A Systematic Review with Meta-Analysis.Nutrients · 2022Pooled it
- Can I Have My Coffee and Drink It? A Systematic Review and Meta-analysis to Determine Whether Habitual Caffeine Consumption Affects the Ergogenic Effect of Caffeine.Sports medicine (Auckland, N.Z.) · 2022Pooled it
- Trial
- The Acute Effects of Caffeine Supplementation on Anaerobic Performance and Functional Strength in Female Soccer Players.Nutrients · 2025Trial
- Are caffeine effects equivalent between different modes of administration: the acute effects of 3 mg.kgJournal of the International Society of Sports Nutrition · 2024Trial
- Effects of caffeinated gum doses combined with post-activation performance enhancement on bench-press bar velocity: a randomized crossover study.Frontiers in nutrition · 2026Article
- Biopsychological Effects of Ashwagandha (Muscles (Basel, Switzerland) · 2025Review
- Effects of Different Doses of Caffeine on Endurance Exercise Performance in the Heat.Life (Basel, Switzerland) · 2025Article
- Maximal Number of Repetitions at Percentages of the One Repetition Maximum: A Meta-Regression and Moderator Analysis of Sex, Age, Training Status, and Exercise.Sports medicine (Auckland, N.Z.) · 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
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Caffeine supplementation has shown to be an effective ergogenic aid enhancing athletic performance, although limited research within female populations exists. Therefore, the aim of the investigation was to assess the effect of pre-exercise caffeine supplementation on strength performance and muscular endurance in strength-trained females. In a double-blind, randomised, counterbalanced design, fourteen strength-trained females using hormonal contraception consumed either 3 or 6 mg·kg
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.