Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners

# Background While previous research has assessed running kinematics for age-related differences that could increase the risk of a running-related injury, none of these studies have included high school aged runners or assessed running kinematics using 2-dimensional video analysis. # Purpose The pu...

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Autores principales:	Mark F Reinking, Nina M Carson, Bridget M End, Olivia K Miller, Joshua D Munter, Thomas G McPoil
Formato:	article
Lenguaje:	EN
Publicado:	North American Sports Medicine Institute 2021
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/03317d688aae4481b1a61de7f2ef9ccc
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spelling	oai:doaj.org-article:03317d688aae4481b1a61de7f2ef9ccc2021-12-02T16:01:46ZDifferences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners10.26603/001c.188212159-2896https://doaj.org/article/03317d688aae4481b1a61de7f2ef9ccc2021-02-01T00:00:00Zhttps://ijspt.scholasticahq.com/article/18821-differences-in-lower-extremity-kinematics-between-high-school-cross-country-and-young-adult-recreational-runners.pdfhttps://doaj.org/toc/2159-2896# Background While previous research has assessed running kinematics for age-related differences that could increase the risk of a running-related injury, none of these studies have included high school aged runners or assessed running kinematics using 2-dimensional video analysis. # Purpose The purpose of this study was to compare sagittal plane kinematics during treadmill running in high school cross-country and young adult recreational runners using 2-dimensional motion analysis techniques. # Methods Twenty-five high school cross-country runners (13 women, 12 men) and 25 young adult recreational runners (12 women, 13 men) consented to participate in this study. Reflective markers were placed on each lower extremity over multiple anatomical landmarks. After a five-minute acclimation period in which the participants ran on a treadmill at their preferred running speed, video data were recorded at 240 frames per second for all participants while they continued to run on the treadmill. # Results There were no significant differences between left and right extremities. The young adult recreational runners exhibited significantly greater vertical excursion of the center of mass (t = 4.64, p = .0001) compared to the high school runners. There was no significant difference between the two age groups regarding the six other sagittal plane variables. # Conclusions The young adult recreational runners demonstrated an increased center-of-mass vertical excursion in comparison to high school cross-country runners. In addition, the results obtained in this study for kinematic variables using 2-dimensional motion analysis were similar to previously reported studies using 3-dimensional motion analysis, demonstrating that 2-dimensional motion analysis could be used for analyzing sagittal plane running kinematics in clinical settings. # Level of Evidence 4, Controlled laboratory studyMark F ReinkingNina M CarsonBridget M EndOlivia K MillerJoshua D MunterThomas G McPoilNorth American Sports Medicine InstitutearticleSports medicineRC1200-1245ENInternational Journal of Sports Physical Therapy, Vol 16, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Mark F Reinking Nina M Carson Bridget M End Olivia K Miller Joshua D Munter Thomas G McPoil Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners
description	# Background While previous research has assessed running kinematics for age-related differences that could increase the risk of a running-related injury, none of these studies have included high school aged runners or assessed running kinematics using 2-dimensional video analysis. # Purpose The purpose of this study was to compare sagittal plane kinematics during treadmill running in high school cross-country and young adult recreational runners using 2-dimensional motion analysis techniques. # Methods Twenty-five high school cross-country runners (13 women, 12 men) and 25 young adult recreational runners (12 women, 13 men) consented to participate in this study. Reflective markers were placed on each lower extremity over multiple anatomical landmarks. After a five-minute acclimation period in which the participants ran on a treadmill at their preferred running speed, video data were recorded at 240 frames per second for all participants while they continued to run on the treadmill. # Results There were no significant differences between left and right extremities. The young adult recreational runners exhibited significantly greater vertical excursion of the center of mass (t = 4.64, p = .0001) compared to the high school runners. There was no significant difference between the two age groups regarding the six other sagittal plane variables. # Conclusions The young adult recreational runners demonstrated an increased center-of-mass vertical excursion in comparison to high school cross-country runners. In addition, the results obtained in this study for kinematic variables using 2-dimensional motion analysis were similar to previously reported studies using 3-dimensional motion analysis, demonstrating that 2-dimensional motion analysis could be used for analyzing sagittal plane running kinematics in clinical settings. # Level of Evidence 4, Controlled laboratory study
format	article
author	Mark F Reinking Nina M Carson Bridget M End Olivia K Miller Joshua D Munter Thomas G McPoil
author_facet	Mark F Reinking Nina M Carson Bridget M End Olivia K Miller Joshua D Munter Thomas G McPoil
author_sort	Mark F Reinking
title	Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners
title_short	Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners
title_full	Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners
title_fullStr	Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners
title_full_unstemmed	Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners
title_sort	differences in lower extremity kinematics between high school cross-country and young adult recreational runners
publisher	North American Sports Medicine Institute
publishDate	2021
url	https://doaj.org/article/03317d688aae4481b1a61de7f2ef9ccc
work_keys_str_mv	AT markfreinking differencesinlowerextremitykinematicsbetweenhighschoolcrosscountryandyoungadultrecreationalrunners AT ninamcarson differencesinlowerextremitykinematicsbetweenhighschoolcrosscountryandyoungadultrecreationalrunners AT bridgetmend differencesinlowerextremitykinematicsbetweenhighschoolcrosscountryandyoungadultrecreationalrunners AT oliviakmiller differencesinlowerextremitykinematicsbetweenhighschoolcrosscountryandyoungadultrecreationalrunners AT joshuadmunter differencesinlowerextremitykinematicsbetweenhighschoolcrosscountryandyoungadultrecreationalrunners AT thomasgmcpoil differencesinlowerextremitykinematicsbetweenhighschoolcrosscountryandyoungadultrecreationalrunners
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Differences in Lower Extremity Kinematics Between High School Cross-Country and Young Adult Recreational Runners

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