Evidence map›Paper›PMID 26043222›Full record

Trial reportPloS one2015

Recovery kinetics of knee flexor and extensor strength after a football match.

Dimitrios Draganidis, Athanasios Chatzinikolaou, Alexandra Avloniti, José C Barbero-Álvarez, Magni Mohr, Paraskevi Malliou, Vassilios Gourgoulis, Chariklia K Deli, Ioannis I Douroudos, Konstantinos Margonis and 6 more

Erratum issuedOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.

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  9. Adequate Interval between Matches in Elite Female Soccer Players.Journal of sports science & medicine · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 5 institutions in 5 countries.

Dimitrios DraganidisSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Athanasios ChatzinikolaouSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Alexandra AvlonitiSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
José C Barbero-ÁlvarezUniversity of Granada, Campus of Melilla, Melilla, Spain.
Magni MohrFaculty of Natural and Health Science, University of the Faroe Islands, Tórshavn, Faroe Islands; Centre of Health and Human Performance, Department of Food and Nutrition, and Sport Sciences, University of Gothenburg, Gothenburg, Sweden.
Paraskevi MalliouSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Vassilios GourgoulisSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Chariklia K DeliSchool of Physical Education and Sports Science, University of Thessaly, Trikala, Greece.
Ioannis I DouroudosSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Konstantinos MargonisSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Asimenia GioftsidouSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece.
Andreas D Flouris
Andreas D FourisSchool of Physical Education and Sports Science, University of Thessaly, Trikala, Greece; Institute of Human Performance and Rehabilitation, Centre for Research and Technology, Thessaly (CERETETH), Trikala, Greece.
Athanasios Z JamurtasSchool of Physical Education and Sports Science, University of Thessaly, Trikala, Greece; Institute of Human Performance and Rehabilitation, Centre for Research and Technology, Thessaly (CERETETH), Trikala, Greece.
Yiannis KoutedakisSchool of Physical Education and Sports Science, University of Thessaly, Trikala, Greece; Institute of Human Performance and Rehabilitation, Centre for Research and Technology, Thessaly (CERETETH), Trikala, Greece; School of Sports, Performing Arts and Leisure, University of Wolverhampton, Wolverhampton, United Kingdom.
Ioannis G FatourosSchool of Physical Education and Sports Science, Democritus University of Thrace, Komotini, Greece; School of Physical Education and Sports Science, University of Thessaly, Trikala, Greece.
Democritus University of Thrace · GRUniversity of Thessaly · GRCenter for Research and Technology Thessaly · GRUniversidad de Granada · ESUniversity of the Faroe Islands · FO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We examined the temporal changes of isokinetic strength performance of knee flexor (KF) and extensor (KE) strength after a football match. Players were randomly assigned to a control (N = 14, participated only in measurements and practices) or an experimental group (N = 20, participated also in a football match). Participants trained daily during the two days after the match. Match and training overload was monitored with GPS devices. Venous blood was sampled and muscle damage was assessed pre-match, post-match and at 12 h, 36 h and 60 h post-match. Isometric strength as well as eccentric and concentric peak torque of knee flexors and extensors in both limbs (dominant and non-dominant) were measured on an isokinetic dynamometer at baseline and at 12 h, 36 h and 60 h after the match. Functional (KFecc/KEcon) and conventional (KFcon/KEcon) ratios were then calculated. Only eccentric peak torque of knee flexors declined at 60 h after the match in the control group. In the experimental group: a) isometric strength of knee extensors and knee flexors declined (P<0.05) at 12 h (both limbs) and 36 h (dominant limb only), b) eccentric and concentric peak torque of knee extensors and flexors declined (P<0.05) in both limbs for 36 h at 60°/s and for 60 h at 180°/s with eccentric peak torque of knee flexors demonstrating a greater (P<0.05) reduction than concentric peak torque, c) strength deterioration was greater (P<0.05) at 180°/s and in dominant limb, d) the functional ratio was more sensitive to match-induced fatigue demonstrating a more prolonged decline. Discriminant and regression analysis revealed that strength deterioration and recovery may be related to the amount of eccentric actions performed during the match and athletes' football-specific conditioning. Our data suggest that recovery kinetics of knee flexor and extensor strength after a football match demonstrate strength, limb and velocity specificity and may depend on match physical overload and players' physical conditioning level.

Indexed as

FootballAthletic PerformanceExtremitiesHeart RateHumansKineticsKneeLinear ModelsMaleMotor ActivityMuscle, SkeletalTime FactorsYoung Adult

Identifiers

PMID26043222
PMCPMC4456353
OpenAlexW1586683987

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.