Evidence map›Paper›PMID 32630274›Full record

ArticleSensors (Basel, Switzerland)2020

Criterion Validity of Catapult ClearSky T6 Local Positioning System for Measuring Inter-Unit Distance.

Ryan W Hodder, Kevin A Ball, Fabio R Serpiello

Open access · goldAbstract readLetter
In one paragraph

Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% of its field
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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Physical Demands during Official Competitions in Elite Handball: A Systematic Review.International journal of environmental research and public health · 2023
    Pooled it
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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 at 1 institution in 1 country.

Ryan W HodderInstitute for Health and Sport (IHES), Victoria University, Footscray VIC 3011, Australia.ORCID 0000-0001-8847-5876
Kevin A BallInstitute for Health and Sport (IHES), Victoria University, Footscray VIC 3011, Australia.
Fabio R SerpielloInstitute for Health and Sport (IHES), Victoria University, Footscray VIC 3011, Australia.ORCID 0000-0001-8919-3053
Victoria University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The validity of a local positioning system (LPS) to measure inter-unit distance was investigated during a team sport movement circuit. Eight recreationally active, female indoor team-sport players completed a circuit, comprising seven types of movements (walk, jog, jump, sprint, 45° change of direction and shuffle), on an indoor court. Participants wore a receiver tag (ClearSky T6, Catapult Sports) and seven reflective markers, to allow for a comparison with the reference system (©Vicon Motion Systems, Oxford Metrics, UK). Inter-unit distance was collected for each combination of participants. Validity was assessed via root mean square error, mean bias and percentage of variance accounted for, both as an overall dataset and split into distance bands. The results presented a mean root mean square error of 0.20 ± 0.05 m, and mean bias detected an overestimation for all distance bands. The LPS shows acceptable accuracy for measuring inter-unit distance, opening up opportunities to utilise player tracking for tactical variables indoors.

Indexed as

Athletic PerformanceGeographic Information SystemsRunningHumansMovementReproducibility of ResultsWalkinglocal positioning systemperformance analysisplayer trackingpositioningtacticalteam sportsvalidity

Identifiers

PMID32630274
PMCPMC7374308
OpenAlexW3038566521

What OpenQuestion holds

Textmetadata
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.