SynthesisFrontiers in physiology2026
Effects of high-intensity interval training on physical fitness in trained adolescent athletes: a systematic review and meta-analysis.
Synthesis in Frontiers in physiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: This systematic review and meta-analysis evaluated the effects of HIIT-based interventions on cardiorespiratory fitness, jump, sprint, change-of-direction, and repeated sprint ability in trained adolescent athletes, and explored potential moderators of these effects. Methods: PubMed, Scopus, Embase, Web of Science, and the Cochrane Library were systematically searched. Between-group effect sizes were calculated from pre-to-post changes and pooled using random-effects models. Risk of bias and certainty of evidence were assessed using the Cochrane RoB 2 tool and the GRADE approach. Heterogeneity was assessed using I², and prespecified subgroup, sensitivity, and meta-regression analyses were performed when appropriate. Results: Thirty-five studies involving 988 trained adolescent athletes were included. Compared with non-HIIT control conditions, HIIT-based interventions significantly improved VO Conclusion: HIIT-based interventions may improve multiple physical fitness outcomes in trained adolescent athletes, with larger effects observed for VO Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/, identifier CRD420261348570.
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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.