Evidence map›Paper›PMID 41904114›Full record

ArticleEuropean journal of sport science2026

Effect of Plyometric Training on Vertical Jump Height in Pre-Peak Height Velocity Boys and Girls Aged 9-11 Years.

Lee D McGarrigal, Liangzhu Feng, Georgina K Stebbings

Abstract read
In one paragraph

Article in European journal of sport science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Lee D McGarrigalDepartment of Sport and Exercise Sciences, Manchester Metropolitan Institute of Sport, Manchester Metropolitan University, Manchester, UK.ORCID https://orcid.org/0009-0001-9720-2754
Liangzhu FengSchool of Physical Education and Sports Science, South China Normal University, Guangzhou, China.ORCID https://orcid.org/0009-0000-0670-8235
Georgina K StebbingsDepartment of Sport and Exercise Sciences, Manchester Metropolitan Institute of Sport, Manchester Metropolitan University, Manchester, UK.ORCID https://orcid.org/0000-0003-0706-2864

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to compare changes in countermovement jump (CMJ) height and take-off velocity, force and power in pre-peak height velocity (pre-PHV) boys and girls aged 9-11 years following 6 weeks of lower body plyometric training (PT). Forty pre-PHV children (20 boys and 20 girls) were allocated to a plyometric training group (PG; n = 20) or a control group (CG; n = 20). The PG completed a progressive plyometric training programme twice weekly for 6 weeks, whereas the CG maintained usual physical activity. CMJ height and kinetic variables were assessed pre- and post-intervention, and training effects were analysed using repeated-measures ANOVA. Results demonstrated a significant between-group difference in CMJ height (p = 0.018) driven by an increase in PG (5.8%; p = 0.013) and no change in CG (-0.5%; p = 0.083). No significant sex differences were observed within PG (p ≥ 0.359); however, CMJ height increased significantly in girls (7.0%; p = 0.030) but not boys (4.7%; p = 0.211). For kinetic variables, only take-off velocity increased in PG (3.2%; p = 0.002), with comparable responses in boys (3.0%; p = 0.038) and girls (3.4%; p = 0.029), whereas force and power showed no significant changes (p ≥ 0.202). No significant changes were observed in CG for CMJ or kinetic variables (p ≥ 0.083). In conclusion, plyometric training improved CMJ performance in pre-PHV children, with no significant sex differences observed. Training adaptations at this stage should be interpreted considering biological maturation status.

Indexed as

Athletic PerformancePlyometric ExerciseChildFemaleHumansMaleMuscle Strengthboyscountermovement jumpgirlsplyometricpre‐PHV

Identifiers

PMID41904114
PMCPMC13042950

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Registered trials

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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.