Evidence map›Paper›PMID 30933609›Full record

ArticleJournal of athletic training2019

Concussion and National Hockey League Player Performance: An Advanced Hockey Metrics Analysis.

Thomas A Buckley, Kelsey N Bryk, Kathryn L Van Pelt, Steven P Broglio, Stephen A East, Scott L Zuckerman, Andrew W Kuhn

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Article in Journal of athletic training, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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

7 authors.

Thomas A BuckleyDepartment of Kinesiology and Applied Physiology, University of Delaware, Newark.
Kelsey N BrykDepartment of Kinesiology and Applied Physiology, University of Delaware, Newark.
Kathryn L Van PeltSchool of Kinesiology and Injury Center, University of Michigan, Ann Arbor.
Steven P BroglioSchool of Kinesiology and Injury Center, University of Michigan, Ann Arbor.
Stephen A EastDepartment of Kinesiology and Applied Physiology, University of Delaware, Newark.
Scott L ZuckermanDepartment of Neurological Surgery, Vanderbilt University School of Medicine, Nashville, TN.
Andrew W KuhnVanderbilt Sports Concussion Center, Vanderbilt University School of Medicine, Nashville, TN.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextPostconcussion deficits in neurocognitive performance and postural control may persist at the time of return to sport participation. How these deficits, if present, affect athletic performance is largely unknown, with prior studies showing mixed results.

objectiveTo evaluate postconcussion National Hockey League player performance using advanced hockey metrics over short- (5 games), medium- (10 games), and long-term (remainder of the season) seasonal performance.

designRetrospective cohort study. PATIENTS OR OTHER

participantsNational Hockey League players who sustained a sport-related concussion (SRC; n = 93) and returned during the same season and players (n = 51) who missed time for non-injury-related reasons. MAIN OUTCOME MEASURE(S): Six performance metrics were used: (1) points per 60 minutes, (2) Corsi percentage, (3) personal Fenwick shooting percentage, (4) scoring chances per 60 minutes, (5) penalty difference, and (6) PDO (not an acronym but sometimes referred to as SVSP% [save percentage shooting percentage]). Performance was compared using 2 (group) × 2 (time) repeated-measures analyses of variance for 3 time windows: (1) ±5 games, (2) ±10 games, and (3) the remainder of the season postconcussion. Alpha values were set at a conservative .01 to account for the lack of independence among dependent variables.

resultsNo significant interactions were present for any of the 6 dependent variables at any of the 3 time windows. Overall, none of the secondary variables differed.

conclusionsUsing advanced, sport-specific metrics, we found that National Hockey League players did not display worse seasonal performance during 3 postinjury time frames after they sustained an SRC. Whereas laboratory studies have identified lingering neurologic deficits after concussion, our results suggest that these deficits, if present, either do not translate to worse athletic performance or were not captured by these 44 metrics. Further, prospective efforts are needed to accurately quantify performance after SRC among professional hockey players.

Indexed as

Athletic InjuriesAthletic PerformanceBrain ConcussionReturn to SportAdultFemaleHockeyHumansMaleMental Status and Dementia TestsPostural BalanceRetrospective Studiesice hockeymild traumatic brain injuriessports performance

Identifiers

PMID30933609
PMCPMC6602367

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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.