Evidence map›Paper›PMID 35309537›Full record

ArticleBiology of sport2022

Does a linear position transducer placed on a stick and belt provide sufficient validity and reliability of countermovement jump performance outcomes?

Vladimír Hojka, Petr Šťastný, James J Tufano, Dan Omcirk, Martin T Janikov, Martin Komarc, Radim Jebavý

Abstract read
In one paragraph

Article in Biology of sport, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

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  11. Countermovement, Hurdle, and Box Jumps: Data-Driven Exercise Selection.Journal of functional morphology and kinesiology · 2023
    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

7 authors.

Vladimír HojkaCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.
Petr ŠťastnýCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.
James J TufanoCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.
Dan OmcirkCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.
Martin T JanikovCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.
Martin KomarcCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.
Radim JebavýCharles University, Faculty of Physical Education and Sport, Prague, Czech Republic.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Manufacturers recommend that linear position transducers (LPTs) should be placed on the side of a barbell (or wooden dowel) to measure countermovement jump (CMJ) height, but the validity and reliability of this placement have not been compared to other attachment sites. Since this recommended attachment site is far from the centre of mass, a belt attachment where the LPT is placed between the feet may increase the validity and reliability of CMJ data. Thirty-six physical education students participated in the study (24.6 ± 4.3 years; 177.0 ± 7.7 cm; 77.2 ± 9.0 kg). Parameters from the two LPT attachments (barbell and belt) were simultaneously validated to force plate data, where the nature of bias was analysed (systematic vs random). The within-session and between-session reliability of both attachment sites were compared to force plate data using a test-retest protocol of two sets of 5 CMJs separated by 7 days. The LPT provided highly reliable and valid measures of peak force, mean force, mean power, and jump height, where the bias was mostly systematic (r

Indexed as

Explosive strengthForce plateJump heightLinear position transducerPower

Identifiers

PMID35309537
PMCPMC8919875

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.