Evidence map›Paper›PMID 37058177›Full record

ReviewJournal of experimental orthopaedics2023

Neuromuscular activity of the lower-extremities during running, landing and changing-of-direction movements in individuals with anterior cruciate ligament reconstruction: a review of electromyographic studies.

Jim D Georgoulis, Dimitra Melissaridou, Kostas Patras, Panayiotis D Megaloikonomos, Ioannis Trikoupis, Olga D Savvidou, Panayiotis J Papagelopoulos

Open access · goldAbstract readReview
In one paragraph

Review in Journal of experimental orthopaedics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
5.4field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 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

7 authors at 3 institutions in 2 countries.

Jim D GeorgoulisFirst Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Athens, Greece. jim.georgoulis@gmail.com.ORCID http://orcid.org/0000-0002-5757-4772
Dimitra MelissaridouFirst Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Athens, Greece.
Kostas PatrasOrthopaedic Sports Medicine Center of Ioannina, University of Ioannina, Ioannina, Greece.
Panayiotis D MegaloikonomosPan Am Clinic, University of Manitoba, Winnipeg, MB, Canada.
Ioannis TrikoupisFirst Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Athens, Greece.
Olga D SavvidouFirst Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Athens, Greece.
Panayiotis J PapagelopoulosFirst Department of Orthopaedic Surgery, National and Kapodistrian University of Athens, Athens, Greece.
National and Kapodistrian University of Athens · GRUniversity of Ioannina · GRPan Am Clinic · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRunning, jumping/landing and cutting/change of direction (CoD) are critical components of return to sport (RTS) following anterior cruciate ligament reconstruction (ACLR), however the electromyographic (EMG) activity patterns of the operated leg during the execution of these tasks are not clear.

methodsA systematic review was conducted to retrieve EMG studies during running, jumping/landing and cutting/(CoD) in ACLR patients. MEDLINE, PubMed, SPORTDiscus and Web of Science databases were searched from 2000 to May, 2022 using a combination of keywords and their variations: "anterior cruciate ligament reconstruction" OR "ACLR", "electromyography" OR "EMG", "running", "jumping" OR "landing", "cutting" OR "change-of-direction" OR "CoD". The search identified studies comparing EMG data during running, landing and cutting/(CoD) between the involved limb and contralateral or control limbs. Risk of bias was assessed and quantitative analyses using effect sizes were performed.

resultsThirty two studies met the inclusion criteria. Seventy five percent (24/32) of the studies reported altered EMG activity pattern of the ACLR leg during running, jumping/landing and cutting/(CoD) when compared with either the healthy control leg or the contra-lateral leg. Twelve studies showed decreased, delayed or earlier onset and delayed peak in quadriceps EMG activity with small to large effect sizes and 9 studies showed increased, delayed or earlier onset and delayed peak in hamstrings EMG activity with small to large effect sizes. Four studies showed a "hamstrings-dominant" strategy i.e. decreased quadriceps coupled with increased hamstrings EMG activity in both running and jumping/landing irrespective of graft type. One study reported that on the grounds of decreased quadriceps activity, lower hamstrings EMG activity was predictive of ipsilateral re-injury in ACLR patients.

conclusionThis systematic review of Level III evidence showed that the ACLR leg displays decreased quadriceps or increased hamstrings EMG activity or both despite RTS. Simultaneous decreased quadriceps and increased hamstrings EMG activity was shown for both running and jumping/landing. From a clinical perspective this "hamstrings dominant" strategy can serve as a protective mechanism against graft re-injury. LEVEL OF EVIDENCE: III.

Indexed as

ACL reconstructionChange of directionCuttingEMGLandingRunning

Identifiers

PMID37058177
PMCPMC10105000
OpenAlexW4365485013

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.