Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study

# Background Clinical tests should replicate the stressful positions encountered during sport participation. Evaluating the kinetic and electromyographical demands of clinical tests enables clinicians to choose appropriate tests for specific sports. # Purpose To describe the shoulder forces and m...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Margie K Olds, Nicole Lemaster, Kelsey Picha, Cody Walker, Nick Heebner, Tim Uhl
Formato:	article
Lenguaje:	EN
Publicado:	North American Sports Medicine Institute 2021
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/07f6ebd8a2504443b587bb062fafd034
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:07f6ebd8a2504443b587bb062fafd034
record_format	dspace
spelling	oai:doaj.org-article:07f6ebd8a2504443b587bb062fafd0342021-12-02T17:43:25ZLine Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study10.26603/001c.214542159-2896https://doaj.org/article/07f6ebd8a2504443b587bb062fafd0342021-04-01T00:00:00Zhttps://ijspt.scholasticahq.com/article/21454-line-hops-and-side-hold-rotation-tests-load-both-anterior-and-posterior-shoulder-a-biomechanical-study.pdfhttps://doaj.org/toc/2159-2896# Background Clinical tests should replicate the stressful positions encountered during sport participation. Evaluating the kinetic and electromyographical demands of clinical tests enables clinicians to choose appropriate tests for specific sports. # Purpose To describe the shoulder forces and muscle activation levels during closed chain functional tests of Line Hops (LH) and Side Hold Rotation (SHR). # Study Design Descriptive biomechanical study # Methods Ten asymptomatic participants were examined in a university laboratory. Two functional tests were evaluated using three-dimensional video analysis and electromyography to measure shoulder forces, moments, and muscular activity levels. # Results SHR produced a peak average posterior translation force of 4.84 N/kg (CI~95~ 4.32-5.36N/kg) and a peak average anterior translational force of 1.57 N/kg (CI~95~ 1.10-2.01N/kg). High levels of serratus anterior (98% maximum voluntary isometric contraction (MVIC) and infraspinatus (52 %MVIC) were recorded during SHR. LH produced a posterior translational force of 4.25 N/kg (CI~95~ 3.44–5.06N/kg). High levels of serratus anterior (105 %MVIC) and infraspinatus (87 %MVIC) were recorded during the push off phase of this activity. # Conclusions LH and SHR placed large posterior translational forces that approached half of a person’s bodyweight on shoulder structures. SHR produced an anterior translation force at extremes of horizontal abduction placing approximately 18% of bodyweight on shoulder structures. The LH test required the serratus anterior to provide power to push the upper torso of the ground while both the serratus and the infraspinatus provides scapular and humeral stability, respectively. # Level of Evidence 4: Case seriesMargie K OldsNicole LemasterKelsey PichaCody WalkerNick HeebnerTim UhlNorth American Sports Medicine InstitutearticleSports medicineRC1200-1245ENInternational Journal of Sports Physical Therapy, Vol 16, Iss 2 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Margie K Olds Nicole Lemaster Kelsey Picha Cody Walker Nick Heebner Tim Uhl Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study
description	# Background Clinical tests should replicate the stressful positions encountered during sport participation. Evaluating the kinetic and electromyographical demands of clinical tests enables clinicians to choose appropriate tests for specific sports. # Purpose To describe the shoulder forces and muscle activation levels during closed chain functional tests of Line Hops (LH) and Side Hold Rotation (SHR). # Study Design Descriptive biomechanical study # Methods Ten asymptomatic participants were examined in a university laboratory. Two functional tests were evaluated using three-dimensional video analysis and electromyography to measure shoulder forces, moments, and muscular activity levels. # Results SHR produced a peak average posterior translation force of 4.84 N/kg (CI~95~ 4.32-5.36N/kg) and a peak average anterior translational force of 1.57 N/kg (CI~95~ 1.10-2.01N/kg). High levels of serratus anterior (98% maximum voluntary isometric contraction (MVIC) and infraspinatus (52 %MVIC) were recorded during SHR. LH produced a posterior translational force of 4.25 N/kg (CI~95~ 3.44–5.06N/kg). High levels of serratus anterior (105 %MVIC) and infraspinatus (87 %MVIC) were recorded during the push off phase of this activity. # Conclusions LH and SHR placed large posterior translational forces that approached half of a person’s bodyweight on shoulder structures. SHR produced an anterior translation force at extremes of horizontal abduction placing approximately 18% of bodyweight on shoulder structures. The LH test required the serratus anterior to provide power to push the upper torso of the ground while both the serratus and the infraspinatus provides scapular and humeral stability, respectively. # Level of Evidence 4: Case series
format	article
author	Margie K Olds Nicole Lemaster Kelsey Picha Cody Walker Nick Heebner Tim Uhl
author_facet	Margie K Olds Nicole Lemaster Kelsey Picha Cody Walker Nick Heebner Tim Uhl
author_sort	Margie K Olds
title	Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study
title_short	Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study
title_full	Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study
title_fullStr	Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study
title_full_unstemmed	Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study
title_sort	line hops and side hold rotation tests load both anterior and posterior shoulder: a biomechanical study
publisher	North American Sports Medicine Institute
publishDate	2021
url	https://doaj.org/article/07f6ebd8a2504443b587bb062fafd034
work_keys_str_mv	AT margiekolds linehopsandsideholdrotationtestsloadbothanteriorandposteriorshoulderabiomechanicalstudy AT nicolelemaster linehopsandsideholdrotationtestsloadbothanteriorandposteriorshoulderabiomechanicalstudy AT kelseypicha linehopsandsideholdrotationtestsloadbothanteriorandposteriorshoulderabiomechanicalstudy AT codywalker linehopsandsideholdrotationtestsloadbothanteriorandposteriorshoulderabiomechanicalstudy AT nickheebner linehopsandsideholdrotationtestsloadbothanteriorandposteriorshoulderabiomechanicalstudy AT timuhl linehopsandsideholdrotationtestsloadbothanteriorandposteriorshoulderabiomechanicalstudy
_version_	1718379626218127360

Line Hops and Side Hold Rotation Tests Load Both Anterior and Posterior Shoulder: A Biomechanical Study

Ejemplares similares