ArticleBMC sports science, medicine & rehabilitation2026
Is lower training frequency more effective? Dose-response relationship of in-season flywheel resistance training on vertical jump and sprint performance in male team-sport athletes: a meta analysis.
Article in BMC sports science, medicine & rehabilitation, 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
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
objectiveThe purpose of this study is to systematically review and meta-analyze the effects of in-season flywheel resistance training (FRT) compared to traditional resistance training (TRT) on vertical jump and linear sprint performance in team-sport athletes. Additionally, this study aims to explore the moderating effects of training parameters (such as frequency, intensity, and duration) on training outcomes.
methodsThis systematic review and meta-analysis followed PRISMA guidelines and was registered in PROSPERO. Five databases were searched for randomized controlled trials comparing in-season flywheel resistance training (FRT) with traditional resistance training (TRT) on vertical jump and sprint performance in team-sport athletes. Risk of bias was assessed using the Cochrane RoB 2 tool, and evidence quality was graded using the GRADE approach. Data were analyzed using Review Manager and Stata, with subgroup and sensitivity analyses performed. Publication bias was evaluated using funnel plots and Egger's test.
resultsSeven randomized controlled trials with 199 male athletes were included. The overall risk of bias was moderate, and evidence quality was low. Flywheel resistance training (FRT) significantly improved countermovement jump (CMJ) height (SMD = 0.46, p < 0.01) and had a small positive effect on linear sprint performance (SMD = -0.38, p = 0.02). Subgroup analyses indicated that CMJ performance improved with training programs consisting of more than 12 sessions, a duration of 5-10 weeks, and a training frequency of less than twice per week. No significant subgroup effects were observed for sprint performance. Sensitivity analyses confirmed the robustness of the results, and no publication bias was detected.
conclusionCompared with TRT, FRT is more effective in enhancing CMJ performance and linear sprint speeds over specific distances in male team-sport athletes during the in-season. Training protocols characterized by low frequency (≤ 2 sessions per week) and a total of around 12 sessions appear to facilitate better athletic adaptations. Future research should include female athletes and investigate long-term interventions to further refine the application strategies of FRT in in-season training.
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.