Finite element analysis of femoral neck strains during stair ascent and descent

Abstract For older population, a better understanding of the hip joint loading environment is needed for the prevention of hip pain, and the reduction of the stress fractures and fall risks. Using the motion analysis and inverse dynamics methods, combined with musculoskeletal modelling, static optim...

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Autores principales:	Chen Deng, Jason C. Gillette, Timothy R. Derrick
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7e8813982bce46c9b5266a8b74d31d8c
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spelling	oai:doaj.org-article:7e8813982bce46c9b5266a8b74d31d8c2021-12-02T17:39:31ZFinite element analysis of femoral neck strains during stair ascent and descent10.1038/s41598-021-87936-y2045-2322https://doaj.org/article/7e8813982bce46c9b5266a8b74d31d8c2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87936-yhttps://doaj.org/toc/2045-2322Abstract For older population, a better understanding of the hip joint loading environment is needed for the prevention of hip pain, and the reduction of the stress fractures and fall risks. Using the motion analysis and inverse dynamics methods, combined with musculoskeletal modelling, static optimization, and finite element (FE) femur model, the difference of femoral neck strains between stair ascent vs. descent, young vs. older populations was compared. A two-way repeated-measures MANOVA was applied to test the effect of age and stair direction on the femoral neck strains. The strains at the femoral neck cross-section were greater for stair descent than ascent for both age groups (mostly P = 0.001 to 0006) but there was no difference between age groups. In this study, femoral neck strains represented bone loading environment in more direct ways than joint reaction forces/moments or joint contact forces, the risk of hip pain, falls and stress fractures might be greater during stair descent than ascent. Possible preventative methods to reduce these risks should be developed in the future studies.Chen DengJason C. GilletteTimothy R. DerrickNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chen Deng Jason C. Gillette Timothy R. Derrick Finite element analysis of femoral neck strains during stair ascent and descent
description	Abstract For older population, a better understanding of the hip joint loading environment is needed for the prevention of hip pain, and the reduction of the stress fractures and fall risks. Using the motion analysis and inverse dynamics methods, combined with musculoskeletal modelling, static optimization, and finite element (FE) femur model, the difference of femoral neck strains between stair ascent vs. descent, young vs. older populations was compared. A two-way repeated-measures MANOVA was applied to test the effect of age and stair direction on the femoral neck strains. The strains at the femoral neck cross-section were greater for stair descent than ascent for both age groups (mostly P = 0.001 to 0006) but there was no difference between age groups. In this study, femoral neck strains represented bone loading environment in more direct ways than joint reaction forces/moments or joint contact forces, the risk of hip pain, falls and stress fractures might be greater during stair descent than ascent. Possible preventative methods to reduce these risks should be developed in the future studies.
format	article
author	Chen Deng Jason C. Gillette Timothy R. Derrick
author_facet	Chen Deng Jason C. Gillette Timothy R. Derrick
author_sort	Chen Deng
title	Finite element analysis of femoral neck strains during stair ascent and descent
title_short	Finite element analysis of femoral neck strains during stair ascent and descent
title_full	Finite element analysis of femoral neck strains during stair ascent and descent
title_fullStr	Finite element analysis of femoral neck strains during stair ascent and descent
title_full_unstemmed	Finite element analysis of femoral neck strains during stair ascent and descent
title_sort	finite element analysis of femoral neck strains during stair ascent and descent
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7e8813982bce46c9b5266a8b74d31d8c
work_keys_str_mv	AT chendeng finiteelementanalysisoffemoralneckstrainsduringstairascentanddescent AT jasoncgillette finiteelementanalysisoffemoralneckstrainsduringstairascentanddescent AT timothyrderrick finiteelementanalysisoffemoralneckstrainsduringstairascentanddescent
_version_	1718379831839686656

Finite element analysis of femoral neck strains during stair ascent and descent

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