Evidence map›Paper›PMID 37259142›Full record

ArticleJournal of neuroengineering and rehabilitation2023

Muscle synergy patterns as altered coordination strategies in individuals with chronic low back pain: a cross-sectional study.

Hiroki Saito, Hikaru Yokoyama, Atsushi Sasaki, Kimitaka Nakazawa

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Journal of neuroengineering and rehabilitation, 2023. 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 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
4.6field-weighted citation impact, top 5% 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, 19 citations in OpenAlex.

  1. Age-dependent synergistic control of sit-to-stand motion.European journal of applied physiology · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 4 institutions in 1 country.

Hiroki SaitoGraduate School of Arts and Sciences, Department of Life Sciences, The University of Tokyo, Tokyo, Japan.
Hikaru YokoyamaInstitute of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan. h-yokoyama@go.tuat.ac.jp.
Atsushi SasakiGraduate School of Engineering Science, Department of Mechanical Science and Bioengineering, Osaka University, Osaka, Japan.
Kimitaka NakazawaGraduate School of Arts and Sciences, Department of Life Sciences, The University of Tokyo, Tokyo, Japan.
Osaka University · JPTokyo University of Agriculture and Technology · JPTokyo University of Technology · JPTokyo University of the Arts · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic low back pain (CLBP) is a highly prevalent disease with poorly understood underlying mechanisms. In particular, altered trunk muscle coordination in response to specific trunk tasks remains largely unknown.

methodsWe investigated the muscle synergies during 11 trunk movement and stability tasks in 15 healthy individuals (8 females and 7 males, aged 21. 3 (20.1-22.8) ± 0.6 years) and in 15 CLBP participants (8 females and 7 males, aged 20. 9 (20.2-22.6) ± 0.7 years) by recording the surface electromyographic activities of 12 back and abdominal muscles (six muscles unilaterally). Non-negative matrix factorization was performed to extract the muscle synergies.

resultsWe found six trunk muscle synergies and temporal patterns in both groups. The high similarity of the trunk synergies and temporal patterns in the groups suggests that both groups share the common feature of the trunk coordination strategy. We also found that trunk synergies related to the lumbar erector spinae showed lower variability in the CLBP group. This may reflect the impaired back muscles that reshape the trunk synergies in the fixed structure of CLBP. Furthermore, the higher variability of trunk synergies in the other muscle regions such as in the latissimus dorsi and oblique externus, which were activated in trunk stability tasks in the CLBP group, represented more individual motor strategies when the trunk tasks were highly demanding.

conclusionOur work provides the first demonstration that individual modular organization is fine-tuned while preserving the overall structures of trunk synergies and temporal patterns in the presence of persistent CLBP.

Indexed as

Back MusclesLow Back PainCross-Sectional StudiesElectromyographyFemaleHumansLumbosacral RegionMaleMuscle, SkeletalLow back painMotor controlTrunk muscle synergiesVariability

Identifiers

PMID37259142
PMCPMC10230697
OpenAlexW4378904897

What Socratic 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 Socratic graph.