Evidence map›Paper›PMID 34288926›Full record

Trial reportPloS one2021

Exploring lumbar and lower limb kinematics and kinetics for evidence that lifting technique is associated with LBP.

Nic Saraceni, Amity Campbell, Peter Kent, Leo Ng, Leon Straker, Peter O'Sullivan

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 22 citations in OpenAlex.

  1. Symptom relief does not fully reflect functional adaptation after lumbar decompression: longitudinal changes in lifting biomechanics following surgery for degenerative lumbar stenosis.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
  2. Characterization of abnormal asymmetrical lifting mechanics in surgery-candidate patients with lumbar radiculopathy.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
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  10. An Exploration of the Influence of Non-Biomechanical Factors on Lifting-Related LBP.International journal of environmental research and public health · 2023
    Article
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  12. Review
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

6 authors at 2 institutions in 2 countries.

Nic SaraceniCurtin School of Allied Health, Curtin University, Perth, Western Australia, Australia.ORCID 0000-0001-6174-3367
Amity CampbellCurtin School of Allied Health, Curtin University, Perth, Western Australia, Australia.
Peter KentCurtin School of Allied Health, Curtin University, Perth, Western Australia, Australia.
Leo NgCurtin School of Allied Health, Curtin University, Perth, Western Australia, Australia.
Leon StrakerCurtin School of Allied Health, Curtin University, Perth, Western Australia, Australia.ORCID 0000-0002-7786-4128
Peter O'SullivanCurtin School of Allied Health, Curtin University, Perth, Western Australia, Australia.
Curtin University · AUUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate if lumbar and lower limb kinematics or kinetics are different between groups with and without a history of LBP during lifting. Secondly, to investigate relationships between biomechanical variables and pain ramp during repeated lifting.

methods21 LBP and 20 noLBP participants completed a 100-lift task, where lumbar and lower limb kinematics and kinetics were measured during lifting, with a simultaneous report of LBP intensity every 10 lifts. Lifts were performed in a laboratory setting, limiting ecological validity.

resultsThe LBP group used a different lifting technique to the noLBP group at the beginning of the task (slower and more squat-like). Kinetic differences at the beginning included less peak lumbar external anterior shear force and greater peak knee power demonstrated by the LBP group. However, at the end of the task, both groups lifted with a much more similar technique that could be classified as more stoop-like and faster. Peak knee power remained greater in the LBP group throughout and was the only kinetic difference between groups at the end of the lifting task. While both groups lifted using a more comparable technique at the end, the LBP group still demonstrated a tendency to perform a slower and more squat-like lift throughout the task. Only one of 21 variables (pelvic tilt at box lift-off), was associated with pain ramp in the LBP group. Conclusions: Workers with a history of LBP, lift with a style that is slower and more squat-like than workers without any history of LBP. Common assumptions that LBP is associated with lumbar kinematics or kinetics such as greater lumbar flexion or greater forces were not observed in this study, raising questions about the current paradigm around 'safe lifting'.

Indexed as

LiftingModels, BiologicalBiomechanical PhenomenaFemaleHumansKineticsKnee JointLumbosacral RegionMalePostureRange of Motion, Articular

Identifiers

PMID34288926
PMCPMC8294511
OpenAlexW3185498150

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.