Evidence map›Paper›PMID 30373113›Full record

ArticleSports (Basel, Switzerland)2018

Larger Countermovement Increases the Jump Height of Countermovement Jump.

Alberto Sánchez-Sixto, Andrew J Harrison, Pablo Floría

Abstract read
In one paragraph

Article in Sports (Basel, Switzerland), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
–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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Free-fall normalised peak braking velocity for countermovement jump monitoring.BMC sports science, medicine & rehabilitation · 2026
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  20. Countermovement, Hurdle, and Box Jumps: Data-Driven Exercise Selection.Journal of functional morphology and kinesiology · 2023
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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.

Alberto Sánchez-SixtoDepartment of Sports, Centro de Estudios Universitarios Cardenal Spinola CEU, Bormujos 41930, Spain. asanchezsixto@cuandalucia.es.ORCID 0000-0002-0180-4743
Andrew J HarrisonBiomechanics Research Unit, University of Limerick, Limerick V94 T9PX, Ireland. drew.harrison@ul.ie.ORCID 0000-0002-5569-4885
Pablo FloríaPhysical Performance & Sports Research, Universidad Pablo de Olavide, Sevilla 41013, Spain. pfloriam@upo.es.ORCID 0000-0002-1863-4285

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Simulation studies show that jump performance can be improved by increasing the depth of countermovement. The purpose of this study was to determine how modifications to the depth of countermovement lead to changes in jump height and the biomechanical parameters related to center of mass displacement and force application. Twenty-nine competitive males participated in this investigation, performing nine countermovement jumps using a self-selected, a deep, and a shallow crouch position. Jump height and relative net vertical impulse were greater when using a deeper crouch position, compared to the self-selected position. Force application variables did not report differences, when the deeper countermovement was compared to the self-selected countermovement; although, the shallower countermovement showed higher values in force application parameters. The deeper countermovement jumps achieved higher velocities of the center of mass than the self-selected jumps, while shallower jumps produced lower velocities than the self-selected jumps. The results of this investigation were consistent with simulation studies, showing that deep countermovements increase net vertical impulse, leading to a higher jump height. In addition, the maximum downward velocity was higher, when the crouch position was deeper. Conversely, force-applied variables did not change when jump performance was increased.

Indexed as

basketballforce platesjumpingkinematicskineticsperformance

Identifiers

PMID30373113
PMCPMC6316300

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.