Evidence map›Paper›PMID 31445486›Full record

ArticleHuman movement science2019

Position of the non-stance leg during the single leg squat affects females and males differently.

Anne Khuu, Cara L Lewis

Abstract readComparative Study
In one paragraph

Article in Human movement science, 2019. 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.

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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

2 authors.

Anne KhuuBoston University, Department of Physical Therapy & Athletic Training, PhD Program in Rehabilitation Sciences, College of Health & Rehabilitation Sciences: Sargent College, 635 Commonwealth Ave, Boston, MA 02215, USA. Electronic address: akhuu@bu.edu.
Cara L LewisBoston University, Department of Physical Therapy & Athletic Training, PhD Program in Rehabilitation Sciences, College of Health & Rehabilitation Sciences: Sargent College, 635 Commonwealth Ave, Boston, MA 02215, USA. Electronic address: lewisc@bu.edu.

Funding

Effect of femoroacetabular impingement (FAI) on hip motion in young adultsK23AR063235 · NIAMS · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI LEWIS, CARA L · 2013 to 2017
$711k
Sex-specific movement differences in young adults with and without hip painR21AR061690 · NIAMS · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI LEWIS, CARA L · 2012 to 2013
$394k
NIAMS NIH HHS K23 AR063235NIAMS NIH HHS R21 AR061690
6 · The paper itself

Abstract

backgroundKinematic differences between females and males for the single leg squat (SLS) have been identified. However, kinetic differences between sexes and how variations of the non-stance leg position during the SLS may affect kinematics and kinetics differently in females and males have not been examined.

objectivesExamine sex-specific kinematic and kinetic differences during the SLS task with 3 different non-stance leg positions.

designControlled laboratory study, cross-sectional design.

methodsThirty-two healthy adults (16 females, 16 males) performed the 3 SLS tasks while data were collected using a motion capture system and force plates. At 60 degrees of knee flexion (60KF) and peak knee flexion (PKF), kinematics and joint moments were compared between sexes and SLS tasks using a linear regression analysis.

resultsFemales exhibited less ipsilateral trunk flexion (P < 0.001) and greater anterior pelvic tilt (P ≤ 0.021) and hip adduction (P < 0.001) than males across tasks at 60KF and PKF. Across tasks, females had a smaller knee flexion moment than males at PKF (P = 0.001). Females had a greater hip abduction moment during SLS-Front than SLS-Middle (P = 0.044) and SLS-Back (P = 0.003) at PKF, but males had similar hip abduction moments across tasks (P ≥ 0.299). At 60KF, males had a greater knee adduction moment during SLS-Front compared to the other tasks (P ≤ 0.019) while females had similar hip abduction moments across tasks (P ≥ 0.459).

conclusionAltering the non-stance leg position during the SLS affects the kinematics and kinetics of both females and males. The position of the non-stance leg can be modified for assessment and treatment purposes and should be reported in research.

Indexed as

Sex CharacteristicsAdultBiomechanical PhenomenaCross-Sectional StudiesExerciseFemaleHip JointHumansKnee JointLegMalePostureRange of Motion, ArticularTorsoYoung AdultBiomechanicsKinematicsKineticsMovement taskSingle leg squat

Identifiers

PMID31445486
PMCPMC6903410

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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.