The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study

Background: The purpose of the present study was to investigate correlative and predictive relationship of lower extremity anatomical alignment, isometric hip abduction and external rotation strength with jump-landing biomechanics using Landing Error Scoring System (LESS). Methods: Anatomical alignm...

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Main Authors: Mohammad Fallah Mohammadi, Sadroddin Shojaadin, Amir Letafatkar, Esmail Ebrahimi, Mansour Eslami
Format: Article
Language:English
Published: Kerman University of Medical Sciences 2017-07-01
Series:Journal of Kerman University of Medical Sciences
Subjects:
Online Access:https://jkmu.kmu.ac.ir/article_50716_cf3b445160a62bd2e021e4fa2e6eb1ba.pdf
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author Mohammad Fallah Mohammadi
Sadroddin Shojaadin
Amir Letafatkar
Esmail Ebrahimi
Mansour Eslami
author_facet Mohammad Fallah Mohammadi
Sadroddin Shojaadin
Amir Letafatkar
Esmail Ebrahimi
Mansour Eslami
author_sort Mohammad Fallah Mohammadi
collection DOAJ
description Background: The purpose of the present study was to investigate correlative and predictive relationship of lower extremity anatomical alignment, isometric hip abduction and external rotation strength with jump-landing biomechanics using Landing Error Scoring System (LESS). Methods: Anatomical alignment and isometric lower extremity muscle strength of 30 active men (mean age of 21.27±2.12 years) have been assessed through goniometry and dynamometry tests, respectively. Then, subjects have performed LESS test for the analysis of their jump-landing biomechanics. Results: There was no significant correlative or predictive relationship between overall LESS score and femoral anteversion angle, tibiofemoral angle, Q angle, navicular drop, tibial torsion, abduction and external rotation isometric strength (P>.05). However, statistically significant negative correlation has been found between knee hyperextension angle and LESS score (P= .01, r= -.4). Conclusion: The findings of the present study showed that lower extremity anatomical alignment and isometric strength measurements has no significant relationship with dynamic biomechanics of jump-landing. This is probably due to the difference in nature of static and isometric measurements and dynamic functional movements.
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spelling doaj.art-51d3d7ce5887471bb7e98cb8e477b3c32023-07-01T05:22:04ZengKerman University of Medical SciencesJournal of Kerman University of Medical Sciences2008-28432017-07-0124323724550716The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System StudyMohammad Fallah Mohammadi0Sadroddin Shojaadin1Amir Letafatkar2Esmail Ebrahimi3Mansour Eslami4PhD Candidate, Department of Biomechanics and Sports Medicine, Faculty of Physical Education and Sports Sciences, University of Kharazmi, Tehran, IranAssociate Professor, Department of Biomechanics and Sports Medicine, Faculty of Physical Education and Sports Sciences, University of Kharazmi, Tehran, IranAssistant Professor, Department of Biomechanics and Sports Medicine, Faculty of Physical Education and Sports Sciences, University of Kharazmi, Tehran, IranProfessor, Department of Rehabilitation, Faculty of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, IranAssociate Professor, Department of Sport Biomechanics, Faculty of Physical Education and Sports Sciences, University of Mazandaran, Babolsar, IranBackground: The purpose of the present study was to investigate correlative and predictive relationship of lower extremity anatomical alignment, isometric hip abduction and external rotation strength with jump-landing biomechanics using Landing Error Scoring System (LESS). Methods: Anatomical alignment and isometric lower extremity muscle strength of 30 active men (mean age of 21.27±2.12 years) have been assessed through goniometry and dynamometry tests, respectively. Then, subjects have performed LESS test for the analysis of their jump-landing biomechanics. Results: There was no significant correlative or predictive relationship between overall LESS score and femoral anteversion angle, tibiofemoral angle, Q angle, navicular drop, tibial torsion, abduction and external rotation isometric strength (P>.05). However, statistically significant negative correlation has been found between knee hyperextension angle and LESS score (P= .01, r= -.4). Conclusion: The findings of the present study showed that lower extremity anatomical alignment and isometric strength measurements has no significant relationship with dynamic biomechanics of jump-landing. This is probably due to the difference in nature of static and isometric measurements and dynamic functional movements.https://jkmu.kmu.ac.ir/article_50716_cf3b445160a62bd2e021e4fa2e6eb1ba.pdfanatomical alignmentisometric strengthlanding error scoring systemjump-landing biomechanics
spellingShingle Mohammad Fallah Mohammadi
Sadroddin Shojaadin
Amir Letafatkar
Esmail Ebrahimi
Mansour Eslami
The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study
Journal of Kerman University of Medical Sciences
anatomical alignment
isometric strength
landing error scoring system
jump-landing biomechanics
title The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study
title_full The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study
title_fullStr The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study
title_full_unstemmed The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study
title_short The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study
title_sort relationship of anatomical alignment and strength of some lower extremity muscles with jump landing biomechanics a landing error scoring system study
topic anatomical alignment
isometric strength
landing error scoring system
jump-landing biomechanics
url https://jkmu.kmu.ac.ir/article_50716_cf3b445160a62bd2e021e4fa2e6eb1ba.pdf
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