Evidence map›Paper›PMID 25112209›Full record

ArticleThe Knee2014

Asymmetries in explosive strength following anterior cruciate ligament reconstruction.

Olivera M Knezevic, Dragan M Mirkov, Marko Kadija, Aleksandar Nedeljkovic, Slobodan Jaric

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in The Knee, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Symmetry tensiomyographic neuromuscular response after chronic anterior cruciate ligament (ACL) reconstruction.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
    Trial
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  4. Asymmetry in Recreational Athletes One Year After Anterior Cruciate Ligament Reconstruction: Comparison of Isokinetic Strength and Hop Test Performance.Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
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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.

Olivera M KnezevicUniversity of Belgrade, Institute for Medical Research, Department of Neurophysiology, Belgrade, Serbia; University of Belgrade, Faculty of Sport and Physical Education, The Research Centre, Belgrade, Serbia.
Dragan M MirkovUniversity of Belgrade, Faculty of Sport and Physical Education, The Research Centre, Belgrade, Serbia.
Marko KadijaClinical Centre of Serbia, Institute for Orthopaedic Surgery and Traumatology, Belgrade, Serbia.
Aleksandar NedeljkovicUniversity of Belgrade, Faculty of Sport and Physical Education, The Research Centre, Belgrade, Serbia.
Slobodan JaricUniversity of Delaware, Department of Kinesiology and Applied Physiology, Newark, DE, USA; University of Delaware, Biomechanics and Movement Science Graduate Program, Newark, DE, USA. Electronic address: jaric@udel.edu.

Funding

Evaluation of Novel Tests of Neuromuscular FunctionR21AR060659 · NIAMS · UNIVERSITY OF DELAWARE · PI JARIC, SLOBODAN · 2010 to 2011
$372k
NIAMS NIH HHS R21AR06065NIAMS NIH HHS R21 AR060659
6 · The paper itself

Abstract

backgroundDespite its apparent functional importance, there is a general lack of data regarding the time-related changes in explosive strength and the corresponding side-to-side asymmetries in individuals recovering from an ACL reconstruction (ACLR). The present study was designed to assess changes in the maximum and explosive strength of the quadriceps and hamstring muscles in athletes recovering from an ACLR.

methodsTwenty male athletes with an ACL injury completed a standard isometric testing protocol pre-ACLR, four and sixmonths post-ACLR. In addition to the maximum strength (Fmax), the explosive strength of quadriceps and hamstrings was assessed through four variables derived from the slope of the force-time curves over various time intervals (RFDmax, RFD50, RFD150 and RFD250). Side-to-side asymmetries were calculated relative to post-ACLR measures of the uninvolved leg ("standard" asymmetries), and relative to pre-ACLR value of the uninvolved leg ("real" asymmetries).

resultsPre-ACLR asymmetries in quadriceps RFD (average 26%) were already larger than in Fmax (14%) (p<0.05). Six months post-ACLR real asymmetries in RFD variables (33-39%) were larger than the corresponding standard asymmetries (26-28%; p<0.01). Average asymmetries in hamstrings' RFD and Fmax were 10%, 25% and 15% for pre-ACLR and two post-ACLR sessions, respectively (all p>0.05).

conclusionsIn addition to the maximum strength, the indices of explosive strength should also be included in monitoring recovery of muscle function following an ACLR. Furthermore, pre-injury/reconstruction values should be used for the post-ACLR side-to-side comparisons, providing a more valid criterion regarding the muscle recovery and readiness for a return to sports.

Indexed as

Anterior Cruciate Ligament InjuriesAdultAnterior Cruciate Ligament ReconstructionAthletesBiomechanical PhenomenaHumansKnee JointMaleMuscle, SkeletalMuscle StrengthRecovery of FunctionYoung AdultACLHamstringsQuadricepsRate of force developmentStrength

Identifiers

PMID25112209
PMCPMC4267974

What OpenQuestion holds

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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.