Evidence map›Paper›PMID 32148568›Full record

ArticleJournal of human kinetics2020

Understanding Player Load: Meanings and Limitations.

Sarah da Glória Teles Bredt, Mauro Heleno Chagas, Gustavo Henrique Peixoto, Hans Joachim Menzel, André Gustavo Pereira de Andrade

Abstract read
In one paragraph

Article in Journal of human kinetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

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

  1. Physical Demands during Official Competitions in Elite Handball: A Systematic Review.International journal of environmental research and public health · 2023
    Pooled it
  2. Load Measures in Training/Match Monitoring in Soccer: A Systematic Review.International journal of environmental research and public health · 2021
    Pooled it
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  19. A framework for player movement analysis in team sports.Frontiers in sports and active living · 2024
    Review
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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

5 authors.

Sarah da Glória Teles BredtLaboratory of Biomechanics - Department of Sports, Universidade Federal de Minas Gerais (Federal University of Minas Gerais), Belo Horizonte, Brazil.
Mauro Heleno ChagasLaboratory of Biomechanics - Department of Sports, Universidade Federal de Minas Gerais (Federal University of Minas Gerais), Belo Horizonte, Brazil.
Gustavo Henrique PeixotoLaboratory of Biomechanics - Department of Sports, Universidade Federal de Minas Gerais (Federal University of Minas Gerais), Belo Horizonte, Brazil.
Hans Joachim MenzelLaboratory of Biomechanics - Department of Sports, Universidade Federal de Minas Gerais (Federal University of Minas Gerais), Belo Horizonte, Brazil.
André Gustavo Pereira de AndradeLaboratory of Biomechanics - Department of Sports, Universidade Federal de Minas Gerais (Federal University of Minas Gerais), Belo Horizonte, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present a critical reflection on the mechanical variable Player Load, which is based on acceleration data and commonly used in sports. Our motivation to write this paper came from the difficulties that we encountered in the calculation and interpretation of Player Load using our own data, since we did not use the Catapult Sports equipment, which is a merchandise of the company that proposed this variable. We reviewed existing literature in order to understand Player Load better; we found many inconsistencies in PL calculation methods and in the meanings attached to it. Accordingly, this paper presents a brief discussion on the meanings that have been assigned to Player Load, its limitations, and the lack of clear and complete information about Player Load calculation methods. Moreover, the use of arbitrary units and different practical meanings in the literature has associated Player Load with many physical quantities, thereby resulting in difficulties in determining what Player Load measures within the context of sports. It seems that Player Load is related to the magnitude of changes in acceleration, but not the magnitude of acceleration itself. Therefore, coaches and sports scientists should take this information into account when they use Player Load to prescribe and monitor external loads. We concluded that a deeper discussion of Player Load as a descriptor of external load is warranted in the sports sciences literature.

Indexed as

accelerationexternal training loadmechanical variables

Identifiers

PMID32148568
PMCPMC7052708

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.