Evidence map›Paper›PMID 34300118›Full record

SynthesisInternational journal of environmental research and public health2021

Is Hip Muscle Strength Associated with Dynamic Knee Valgus in a Healthy Adult Population? A Systematic Review.

Ali Mohammed Alzahrani, Msaad Alzhrani, Saeed Nasser Alshahrani, Wael Alghamdi, Mazen Alqahtani, Hosam Alzahrani

Abstract readSystematic Review
In one paragraph

Synthesis in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. Review
  6. Does Periacetabular Osteotomy Affect the Load Distribution on the Knee?Clinical orthopaedics and related research · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Impact of the Quadriceps Angle on Health and Injury Risk in Female Athletes.International journal of environmental research and public health · 2024
    Review
  13. Review
  14. Article
  15. Article
  16. 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.

Ali Mohammed AlzahraniAlmandq General Hospital, Ministry of Health, Albaha 65749, Saudi Arabia.
Msaad AlzhraniDepartment of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Al Majmaah 11952, Saudi Arabia.ORCID 0000-0002-4233-9673
Saeed Nasser AlshahraniArmed Forces Medical Services, Armed Forces Hospital, Southern Region, Khamis Mushait 61961, Saudi Arabia.
Wael AlghamdiDepartment of Nursing, Faculty of Applied Medical Sciences, Albaha University, Albaha 65511, Saudi Arabia.
Mazen AlqahtaniDepartment of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Al Majmaah 11952, Saudi Arabia.
Hosam AlzahraniDepartment of Physical Therapy, College of Applied Medical Sciences, Taif University, Taif 21944, Saudi Arabia.ORCID 0000-0002-4383-115X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

Indexed as

Knee JointMuscle StrengthAdultHipHumansKneeMuscle, Skeletal2D motion analysisbiomechanicsdynamic knee valgusdynamic lower extremity valguship strength

Identifiers

PMID34300118
PMCPMC8304771

What OpenQuestion holds

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Registered trials

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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.