Evidence map›Paper›PMID 39988609›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2025

Association between lumbar paraspinal muscle activities and quality in chronic low back pain: a cross-sectional analysis.

Tianwei Zhang, Ali Firouzabadi, Luis Becker, Lukas Schönnagel, Daishui Yang, Sihai Liu, Adamantios Arampatzis, Sandra Reitmaier, Hendrik Schmidt

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In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–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

8 citing papers in PubMed.

  1. Review
  2. Article
  3. Observational
  4. Spinal mobility and paraspinal muscle degeneration: a cross-sectional analysis from the Berlin Back Study.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
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

9 authors.

Tianwei ZhangJulius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.
Ali FirouzabadiJulius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.
Luis BeckerCenter for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Lukas SchönnagelCenter for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Daishui YangJulius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.
Sihai LiuJulius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.
Adamantios ArampatzisDepartment of Training and Movement Sciences, Humbold-Universitaet zu Berlin, Berlin, Germany.
Sandra ReitmaierJulius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.
Hendrik SchmidtJulius Wolff Institute, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany. hendrik.schmidt@bih-charite.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to investigate the associations between electromyography (EMG) activity and key muscle quality parameters, including cross-sectional area (CSA), functional cross-sectional area (FCSA), fat area (FA), and fat infiltration (FI), in individuals with chronic low back pain (cLBP) and those without back pain (no-BP). The objective was to explore how variations in muscle quality affect muscle activation patterns in the erector spinae (ES) and multifidus (MF) muscles during a standardized lifting task in both groups.

methodsA total of 102 participants were enrolled, comprising 60 individuals with cLBP and 42 without back pain. Muscle activation was measured using a bipolar wireless EMG system during the performance of a 10 kg lifting task. Magnetic resonance imaging (MRI) was utilized to assess muscle quality indicators (CSA, FCSA, FA, and FI) at the L3 level for the ES muscle and the L5 level for the MF muscle. Linear regression models were applied to examine the associations between EMG activity and muscle quality metrics, with adjustments for age, sex, and body mass index (BMI).

resultsIn the no-BP group, significant negative associations were found between CSA, FCSA, and EMG activity in the ES muscles (p < 0.05). However, in the cLBP group, no significant associations were observed between CSA or FCSA and EMG activity. Instead, there was a significant negative association between EMG activity and FA/FI in the ES muscles of the cLBP group (p < 0.05).

conclusionMuscle quality, particularly fat infiltration, appears to have a greater impact on the amplitude of muscle activities in cLBP patients compared to CSA and FCSA. In contrast to the no-BP group, CSA and FCSA were not significantly associated with muscle activation in the cLBP group, highlighting the need for rehabilitation strategies focused on reducing fat infiltration to improve muscle performance in these patients.

Indexed as

Chronic PainLow Back PainParaspinal MusclesAdultCross-Sectional StudiesElectromyographyFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedChronic low back painCross-sectional areaElectromyographyFat infiltrationMuscle qualityParaspinal muscles

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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.