Evidence map›Paper›PMID 32470052›Full record

ArticlePloS one2020

Biomechanical influences of gait patterns on knee joint: Kinematic & EMG analysis.

Jin Ju Kim, Han Cho, Yulhyun Park, Joonyoung Jang, Jung Woo Kim, Ju Seok Ryu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Biomechanical Analysis of the Unaffected Limb While Using a Hands-Free Crutch.Journal of functional morphology and kinesiology · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Observational
  10. Osteoarthritis induces gender-related changes in the knee range of motion.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
    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

6 authors at 2 institutions in 1 country.

Jin Ju KimDepartment of Medicine, Seoul National University College of Medicine, Seongnam-si, Republic of Korea.
Han ChoDepartment of Medicine, Seoul National University College of Medicine, Seongnam-si, Republic of Korea.
Yulhyun ParkDepartment of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.
Joonyoung JangDepartment of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.
Jung Woo KimDepartment of Rehabilitation Medicine, Seoul National University Hospital, Seongnam-si, Republic of Korea.
Ju Seok RyuDepartment of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seongnam-si, Republic of Korea.ORCID 0000-0003-3299-3038
Seoul National University · KRSeoul National University Bundang Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAs lumbar spinal stenosis commonly occurs between the L2 and L5 segments, hip abductors are easily affected. However, studies regarding the gait pattern in these patients from the coronal plane have not yet been conducted. PURPOSE: To determine the effects of lumbar spinal stenosis on the gait pattern (stride width and femorotibial angle) and hip abductor surface electromyography in varied stride widths compared with healthy individuals. STUDY

designProspective case-control study.

methodsSeventeen patients and 20 healthy individuals were enrolled. Each participant completed three gait assessments in their normal gait, adducted gait and abducted gait. The femorotibial angle and surface electromyography signals were measured. Pain scores was used to quantify the degree of discomfort in the gluteal area and medial side of the knee.

resultsWhen the hip abductors' surface electromyography signals were normalized by quadriceps femoris, patients group showed significantly higher activation ratios throughout all gait patterns. Generally, surface electromyography signals and ratios were significantly higher during abducted gait compared with a normal gait. Femorotibial angle became significantly closer to the varus in healthy individuals during abducted gait. When femorotibial angle during normal gait was compared between the two groups, patients group exhibited slightly wider stride width and FTA significantly closer to the varus. Pain scores were significantly higher in the patient group and during abducted gait.

conclusionWider stride widths indicated increased relative activation of the hip abductors, closer proximity between femorotibial angle and varus, and increased pain scores for discomfort. The same tendency was observed in patients group when compared with healthy individuals. Widening of stride width in patients group despite abductor weakness suggests that additional muscle recruitment may be needed to maintain balance. Furthermore, such a distinctive gait pattern exerts increased loading on the medial knee, relating to the escalated risk of degenerative knee osteoarthritis.

Indexed as

GaitAgedBiomechanical PhenomenaCase-Control StudiesConstriction, PathologicElectromyographyFemaleHumansKnee JointLumbar VertebraeMaleMiddle AgedProspective Studies

Identifiers

PMID32470052
PMCPMC7259630
OpenAlexW3029305682

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.