Evidence map›Paper›PMID 34291039›Full record

ArticleFrontiers in bioengineering and biotechnology2021

Fatigue Induced by Repeated Changes of Direction in Élite Female Football (Soccer) Players: Impact on Lower Limb Biomechanics and Implications for ACL Injury Prevention.

Matteo Zago, Sina David, Filippo Bertozzi, Claudia Brunetti, Alice Gatti, Francesca Salaorni, Marco Tarabini, Christel Galvani, Chiarella Sforza, Manuela Galli

Open access · goldAbstract read
In one paragraph

Article in Frontiers in bioengineering and biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 35 citations in OpenAlex.

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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

10 authors at 4 institutions in 2 countries.

Matteo ZagoDipartimento di Meccanica, Politecnico di Milano, Milan, Italy.
Sina DavidDepartment of Human Movement Sciences, VU University Amsterdam, Amsterdam, Netherlands.
Filippo BertozziDipartimento di Scienze Biomediche per la Salute, Politecnico di Milano, Milan, Italy.
Claudia BrunettiIRCCS Fondazione Santa Lucia, Rome, Italy.
Alice GattiDipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy.
Francesca SalaorniDipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Milan, Italy.
Marco TarabiniDipartimento di Meccanica, Politecnico di Milano, Milan, Italy.
Christel GalvaniDipartimento di Psicologia, Università Cattolica del Sacro Cuore, Milan, Italy.
Chiarella SforzaDipartimento di Scienze Biomediche per la Salute, Politecnico di Milano, Milan, Italy.
Manuela GalliE4Sport Laboratory, Politecnico di Milano, Lecco, Italy.
Politecnico di Milano · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITUniversità Cattolica del Sacro Cuore · ITVrije Universiteit Amsterdam · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe etiology of Anterior Cruciate Ligament (ACL) injury in women football results from the interaction of several extrinsic and intrinsic risk factors. Extrinsic factors change dynamically, also due to fatigue. However, existing biomechanical findings concerning the impact of fatigue on the risk of ACL injuries remains inconsistent. We hypothesized that fatigue induced by acute workload in short and intense game periods, might in either of two ways: by pushing lower limbs mechanics toward a pattern close to injury mechanism, or alternatively by inducing opposed protective compensatory adjustments.

aimIn this study, we aimed at assessing the extent to which fatigue impact on joints kinematics and kinetics while performing repeated changes of direction (CoDs) in the light of the ACL risk factors.

methodsThis was an observational, cross-sectional associative study. Twenty female players (age: 20-31 years, 1st-2nd Italian division) performed a continuous shuttle run test (5-m) involving repeated 180°-CoDs until exhaustion. During the whole test, 3D kinematics and ground reaction forces were used to compute lower limb joints angles and internal moments. Measures of exercise internal load were: peak post-exercise blood lactate concentration, heart rate (HR) and perceived exertion. Continuous linear correlations between kinematics/kinetics waveforms (during the ground contact phase of the pivoting limb) and the number of consecutive CoD were computed during the exercise using a Statistical Parametric Mapping (SPM) approach.

resultsThe test lasted 153 ± 72 s, with a rate of 14 ± 2 CoDs/min. Participants reached 95% of maximum HR and a peak lactate concentration of 11.2 ± 2.8 mmol/L. Exercise duration was inversely related to lactate concentration ( DISCUSSION: Players exhibited different strategies to cope with repeated CoDs, ranging from protective to potentially dangerous behaviors. While the latter was not a univocal effect, it reinforces the importance of individual biomechanical assessment when coping with fatigue.

Indexed as

anterior cruciate ligamentchanges of directionfatigueinjurykinematicswomen soccer

Identifiers

PMID34291039
PMCPMC8287513
OpenAlexW3183576871

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.