Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture

Computational human body models (HBMs) of drivers for pre-crash simulations need active shoulder muscle control, and volunteer data are lacking. The goal of this paper was to build shoulder muscle dynamic spatial tuning patterns, with a secondary focus to present shoulder kinematic evaluation data....

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Autores principales:	Jason B. Fice, Emma Larsson, Johan Davidsson
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	volunteer data spatial tuning shoulder muscles human body models volunteer testing Biotechnology TP248.13-248.65
Acceso en línea:	https://doaj.org/article/492cc336b5244b36aa72bcd04f8c711d
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id	oai:doaj.org-article:492cc336b5244b36aa72bcd04f8c711d
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spelling	oai:doaj.org-article:492cc336b5244b36aa72bcd04f8c711d2021-11-30T18:05:13ZDynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture2296-418510.3389/fbioe.2021.761799https://doaj.org/article/492cc336b5244b36aa72bcd04f8c711d2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fbioe.2021.761799/fullhttps://doaj.org/toc/2296-4185Computational human body models (HBMs) of drivers for pre-crash simulations need active shoulder muscle control, and volunteer data are lacking. The goal of this paper was to build shoulder muscle dynamic spatial tuning patterns, with a secondary focus to present shoulder kinematic evaluation data. 8M and 9F volunteers sat in a driver posture, with their torso restrained, and were exposed to upper arm dynamic perturbations in eight directions perpendicular to the humerus. A dropping 8-kg weight connected to the elbow through pulleys applied the loads; the exact timing and direction were unknown. Activity in 11 shoulder muscles was measured using surface electrodes, and upper arm kinematics were measured with three cameras. We found directionally specific muscle activity and presented dynamic spatial tuning patterns for each muscle separated by sex. The preferred directions, i.e. the vector mean of a spatial tuning pattern, were similar between males and females, with the largest difference of 31° in the pectoralis major muscle. Males and females had similar elbow displacements. The maxima of elbow displacements in the loading plane for males was 189 ± 36 mm during flexion loading, and for females, it was 196 ± 36 mm during adduction loading. The data presented here can be used to design shoulder muscle controllers for HBMs and evaluate the performance of shoulder models.Jason B. FiceEmma LarssonJohan DavidssonFrontiers Media S.A.articlevolunteer dataspatial tuningshoulder muscleshuman body modelsvolunteer testingBiotechnologyTP248.13-248.65ENFrontiers in Bioengineering and Biotechnology, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	volunteer data spatial tuning shoulder muscles human body models volunteer testing Biotechnology TP248.13-248.65
spellingShingle	volunteer data spatial tuning shoulder muscles human body models volunteer testing Biotechnology TP248.13-248.65 Jason B. Fice Emma Larsson Johan Davidsson Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture
description	Computational human body models (HBMs) of drivers for pre-crash simulations need active shoulder muscle control, and volunteer data are lacking. The goal of this paper was to build shoulder muscle dynamic spatial tuning patterns, with a secondary focus to present shoulder kinematic evaluation data. 8M and 9F volunteers sat in a driver posture, with their torso restrained, and were exposed to upper arm dynamic perturbations in eight directions perpendicular to the humerus. A dropping 8-kg weight connected to the elbow through pulleys applied the loads; the exact timing and direction were unknown. Activity in 11 shoulder muscles was measured using surface electrodes, and upper arm kinematics were measured with three cameras. We found directionally specific muscle activity and presented dynamic spatial tuning patterns for each muscle separated by sex. The preferred directions, i.e. the vector mean of a spatial tuning pattern, were similar between males and females, with the largest difference of 31° in the pectoralis major muscle. Males and females had similar elbow displacements. The maxima of elbow displacements in the loading plane for males was 189 ± 36 mm during flexion loading, and for females, it was 196 ± 36 mm during adduction loading. The data presented here can be used to design shoulder muscle controllers for HBMs and evaluate the performance of shoulder models.
format	article
author	Jason B. Fice Emma Larsson Johan Davidsson
author_facet	Jason B. Fice Emma Larsson Johan Davidsson
author_sort	Jason B. Fice
title	Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture
title_short	Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture
title_full	Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture
title_fullStr	Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture
title_full_unstemmed	Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture
title_sort	dynamic spatial tuning patterns of shoulder muscles with volunteers in a driving posture
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/492cc336b5244b36aa72bcd04f8c711d
work_keys_str_mv	AT jasonbfice dynamicspatialtuningpatternsofshouldermuscleswithvolunteersinadrivingposture AT emmalarsson dynamicspatialtuningpatternsofshouldermuscleswithvolunteersinadrivingposture AT johandavidsson dynamicspatialtuningpatternsofshouldermuscleswithvolunteersinadrivingposture
_version_	1718406375900446720

Dynamic Spatial Tuning Patterns of Shoulder Muscles with Volunteers in a Driving Posture

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