SynthesisJournal of sport and health science2021
Test-retest reliability of the 30-15 Intermittent Fitness Test: A systematic review.
Synthesis in Journal of sport and health science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
What it found
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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.
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Who cites it
19 citing papers in PubMed.
- Effects of Kefir Consumption on Gut Microbiota and Athletic Performance in Professional Female Soccer Players: A Randomized Controlled Trial.Nutrients · 2025Trial
- The reliability, validity and usefulness of the 30-15 intermittent fitness test for cardiorespiratory fitness assessment in military personnel.Scientific reports · 2022Trial
- The 30-15 intermittent fitness test in male futsal players: reliability and validity properties.Scientific reports · 2026Article
- Validity and agreement of the 30-15 Intermittent Fitness Test for estimating aerobic and performance-related parameters: a systematic review and meta-analysis.BMC sports science, medicine & rehabilitation · 2026Article
- Physical profiling in elite professional men's football: Academy, reserve and first team variations in fitness and performance.Open access journal of sports medicine · 2026Article
- Re-examining the reliability and validity of 30-15Frontiers in physiology · 2025Article
- Testing in Football: A Narrative Review.Sports (Basel, Switzerland) · 2024Review
- Age-Related Differences and Reliability of a Field-Based Fitness Test Battery in Young Trained Footballers: The Role of Biological Age.Life (Basel, Switzerland) · 2024Article
- A survey into the current fitness testing practices of elite male soccer practitioners: from assessment to communicating results.Frontiers in physiology · 2024Article
- Application of arbitrary and individualized load quantification strategies over the weekly microcycle in professional soccer players.Biology of sport · 2024Article
- Performance in the Yo-Yo Intermittent Recovery Test May Improve with Repeated Trials: Does Practice Matter?Journal of functional morphology and kinesiology · 2023Article
- The Impact of Gloves and Occupational Tasks on Handgrip Strength in Structural Firefighters.International journal of exercise science · 2023Article
- Effects of a small-sided games training program in youth male soccer players: variations of the locomotor profile while interacting with baseline level and with the accumulated load.BMC sports science, medicine & rehabilitation · 2022Article
- Physiological and locomotor demands during small-sided games are related to match demands and physical fitness? A study conducted on youth soccer players.BMC sports science, medicine & rehabilitation · 2022Article
- Relationships between Fitness Status and Blood Biomarkers in Professional Soccer Players.Journal of healthcare engineering · 2022Article
- Relationships Between Aerobic Performance, Hemoglobin Levels, and Training Load During Small-Sided Games: A Study in Professional Soccer Players.Frontiers in physiology · 2021Article
- Functional High-Intensity Interval Training Lowers Body Mass and Improves Coordination, Strength, Muscular Endurance, and Aerobic Endurance of Inmates in a German Prison.Frontiers in physiology · 2021Article
- Test-Retest Reliability of the One-Repetition Maximum (1RM) Strength Assessment: a Systematic Review.Sports medicine - open · 2020Review
- Do you Play or Do you Train? Insights From Individual Sports for Training Load and Injury Risk Management in Team Sports Based on Individualization.Frontiers in physiology · 2020Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis review aimed to synthesize previous findings on the test-retest reliability of the 30-15 Intermittent Fitness Test (IFT).
methodsThe literature searches were performed in 8 databases. Studies that examined the test-retest reliability of the 30-15 IFT and presented the intraclass correlation coefficient (ICC) and/or the coefficient of variation (CV) for maximal velocity and/or peak heart rate were included. The consensus-based standards for the selection of health measurement instruments (COSMIN) checklist was used for the assessment of the methodological quality of the included studies.
resultsSeven studies, with a total of 10 study groups, explored reliability of maximal velocity assessed by the 30-15 IFT. ICCs ranged from 0.80 to 0.99, where 70% of ICCs were ≥0.90. CVs for maximal velocity ranged from 1.5% to 6.0%. Six studies, with a total of 7 study groups, explored reliability of peak heart rate as assessed by the 30-15 IFT. ICCs ranged from 0.90 to 0.97 (i.e., all ICCs were ≥0.90). CVs ranged from 0.6% to 4.8%. All included studies were of excellent methodological quality.
conclusionFrom the results of this systematic review, it can be concluded that the 30-15 IFT has excellent test-retest reliability for both maximal velocity and peak heart rate. The test may, therefore, be used as a reliable measure of fitness in research and sports practice.
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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.