Evidence map›Paper›PMID 34134079›Full record

ArticleThe Knee2021

Effect of isolated hip abductor fatigue on single-leg landing mechanics and simulated ACL loading.

Namwoong Kim, Sae Yong Lee, Sung-Cheol Lee, Adam B Rosen, Terry L Grindstaff, Brian A Knarr

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in The Knee, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 19% 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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. 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 3 institutions in 2 countries.

Namwoong KimDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Dr S, Omaha, NE 68182, USA. Electronic address: namwoongkim@unomaha.edu.
Sae Yong LeeDepartment of Physical Education, Yonsei University, 50 Yonsei-ro, Sports Science Complex, Seoul 03722, South Korea; International Olympic Committee Research Centre KOREA, Yonsei University, 50 Yonsei-ro, Sports Science Complex, Seoul 03722, South Korea; Institute of Convergence Science, Yonsei University, 50 Yonsei-ro, Sports Science Complex, Seoul 03722, South Korea.
Sung-Cheol LeeDepartment of Physical Education, Yonsei University, 50 Yonsei-ro, Sports Science Complex, Seoul 03722, South Korea; Institute of Convergence Science, Yonsei University, 50 Yonsei-ro, Sports Science Complex, Seoul 03722, South Korea.
Adam B RosenSchool of Health and Kinesiology, University of Nebraska at Omaha, 6160 University Dr S, Omaha, NE 68182, USA.
Terry L GrindstaffSchool of Pharmacy and Health Professions, Creighton University, 2500 California Plaza, Boyne Building, Omaha, NE 68178, USA.
Brian A KnarrDepartment of Biomechanics, University of Nebraska at Omaha, 6160 University Dr S, Omaha, NE 68182, USA.
University of Nebraska at Omaha · USYonsei University · KRCreighton University · US

Funding

Visual control of locomotion in people with Parkinsons diseaseP20GM109090 · NIGMS · UNIVERSITY OF NEBRASKA OMAHA · PI STERGIOU, NIKOLAOS · 2014 to 2023
$20.5M
Impact of assistive device use during treadmill and overground walking post-strokeR15HD094194 · NICHD · UNIVERSITY OF NEBRASKA OMAHA · PI KNARR, BRIAN ANDREW · 2018 to 2018
$443k
NICHD NIH HHS R15 HD094194NIGMS NIH HHS P20 GM109090
6 · The paper itself

Abstract

backgroundAltered movement biomechanics are a risk factor for ACL injury. While hip abductor weakness has been shown to negatively impact landing biomechanics, the role of this musculature and injury risk is not clear. The aim of this musculoskeletal simulation study was to determine the effect of hip abductor fatigue-induced weakness on ACL loading, force production of lower extremity muscles, and lower extremity biomechanics during single-leg landing.

methodsBiomechanical data from ten healthy adults were collected before and after a fatigue protocol and used to derive subject-specific estimates of muscle forces and ACL loading using a 5-degree of freedom (DOF) model.

resultsThere were no significant differences in knee joint angles and ACL loading between pre and post-fatigue. However, there were significant differences, due to fatigue, in lateral trunk flexion angle, total excursion of trunk, muscle forces, and joint moments.

conclusionAltered landing mechanics, due to hip abductor fatigue-induced weakness, may be associated with increased risk of ACL injury during single-leg landings. Clinical assessment or screening of ACL injury risk will benefit from subject-specific musculoskeletal models during dynamic movements. Future study considering the type of the fatigue protocols, cognitive loads, and various tasks is needed to further identify the effect of hip abductor weakness on lower extremity landing biomechanics.

Indexed as

Anterior Cruciate Ligament InjuriesLegAdultBiomechanical PhenomenaHumansKnee JointLower ExtremityMovementMuscle FatigueACL injuryLanding biomechanicsMusculoskeletal simulation

Identifiers

PMID34134079
PMCPMC8503925
OpenAlexW3005316041

What OpenQuestion holds

Textmetadata
LicenceTDM
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.