Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.

We hypothesized that, as occurring in cars, body structural asymmetries could generate asymmetry in the kinematics/dynamics of locomotion, ending up in a higher metabolic cost of transport, i.e. more 'fuel' needed to travel a given distance. Previous studies found the asymmetries in horses...

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Autores principales:	Elena Seminati, Francesca Nardello, Paola Zamparo, Luca P Ardigò, Niccolò Faccioli, Alberto E Minetti
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4256f1b5b4104cf3990d1a4f2f303359
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spelling	oai:doaj.org-article:4256f1b5b4104cf3990d1a4f2f3033592021-11-18T08:53:54ZAnatomically asymmetrical runners move more asymmetrically at the same metabolic cost.1932-620310.1371/journal.pone.0074134https://doaj.org/article/4256f1b5b4104cf3990d1a4f2f3033592013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24086316/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203We hypothesized that, as occurring in cars, body structural asymmetries could generate asymmetry in the kinematics/dynamics of locomotion, ending up in a higher metabolic cost of transport, i.e. more 'fuel' needed to travel a given distance. Previous studies found the asymmetries in horses' body negatively correlated with galloping performance. In this investigation, we analyzed anatomical differences between the left and right lower limbs as a whole by performing 3D cross-correlation of Magnetic Resonance Images of 19 male runners, clustered as Untrained Runners, Occasional Runners and Skilled Runners. Running kinematics of their body centre of mass were obtained from the body segments coordinates measured by a 3D motion capture system at incremental running velocities on a treadmill. A recent mathematical procedure quantified the asymmetry of the body centre of mass trajectory between the left and right steps. During the same sessions, runners' metabolic consumption was measured and the cost of transport was calculated. No correlations were found between anatomical/kinematic variables and the metabolic cost of transport, regardless of the training experience. However, anatomical symmetry significant correlated to the kinematic symmetry, and the most trained subjects showed the highest level of kinematic symmetry during running. Results suggest that despite the significant effects of anatomical asymmetry on kinematics, either those changes are too small to affect economy or some plastic compensation in the locomotor system mitigates the hypothesized change in energy expenditure of running.Elena SeminatiFrancesca NardelloPaola ZamparoLuca P ArdigòNiccolò FaccioliAlberto E MinettiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 9, p e74134 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Elena Seminati Francesca Nardello Paola Zamparo Luca P Ardigò Niccolò Faccioli Alberto E Minetti Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
description	We hypothesized that, as occurring in cars, body structural asymmetries could generate asymmetry in the kinematics/dynamics of locomotion, ending up in a higher metabolic cost of transport, i.e. more 'fuel' needed to travel a given distance. Previous studies found the asymmetries in horses' body negatively correlated with galloping performance. In this investigation, we analyzed anatomical differences between the left and right lower limbs as a whole by performing 3D cross-correlation of Magnetic Resonance Images of 19 male runners, clustered as Untrained Runners, Occasional Runners and Skilled Runners. Running kinematics of their body centre of mass were obtained from the body segments coordinates measured by a 3D motion capture system at incremental running velocities on a treadmill. A recent mathematical procedure quantified the asymmetry of the body centre of mass trajectory between the left and right steps. During the same sessions, runners' metabolic consumption was measured and the cost of transport was calculated. No correlations were found between anatomical/kinematic variables and the metabolic cost of transport, regardless of the training experience. However, anatomical symmetry significant correlated to the kinematic symmetry, and the most trained subjects showed the highest level of kinematic symmetry during running. Results suggest that despite the significant effects of anatomical asymmetry on kinematics, either those changes are too small to affect economy or some plastic compensation in the locomotor system mitigates the hypothesized change in energy expenditure of running.
format	article
author	Elena Seminati Francesca Nardello Paola Zamparo Luca P Ardigò Niccolò Faccioli Alberto E Minetti
author_facet	Elena Seminati Francesca Nardello Paola Zamparo Luca P Ardigò Niccolò Faccioli Alberto E Minetti
author_sort	Elena Seminati
title	Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
title_short	Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
title_full	Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
title_fullStr	Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
title_full_unstemmed	Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
title_sort	anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/4256f1b5b4104cf3990d1a4f2f303359
work_keys_str_mv	AT elenaseminati anatomicallyasymmetricalrunnersmovemoreasymmetricallyatthesamemetaboliccost AT francescanardello anatomicallyasymmetricalrunnersmovemoreasymmetricallyatthesamemetaboliccost AT paolazamparo anatomicallyasymmetricalrunnersmovemoreasymmetricallyatthesamemetaboliccost AT lucapardigo anatomicallyasymmetricalrunnersmovemoreasymmetricallyatthesamemetaboliccost AT niccolofaccioli anatomicallyasymmetricalrunnersmovemoreasymmetricallyatthesamemetaboliccost AT albertoeminetti anatomicallyasymmetricalrunnersmovemoreasymmetricallyatthesamemetaboliccost
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Anatomically asymmetrical runners move more asymmetrically at the same metabolic cost.

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