Pilot study on proximal femur strains during locomotion and fall-down scenario.
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| Title: | Pilot study on proximal femur strains during locomotion and fall-down scenario. |
|---|---|
| Authors: | Kłodowski, Adam1 adam.klodowski@lut.fi, Valkeapää, Antti1 antti.valkeapaa@lut.fi, Mikkola, Aki1 aki.mikkola@lut.fi |
| Source: | Multibody System Dynamics. Sep2012, Vol. 28 Issue 3, p239-256. 18p. |
| Subjects: | Bone fractures, Older people, Femur, Exercise, Bone injuries |
| Abstract: | The most common and severe type of fracture among the elderly is known as a proximal femur fracture. Aging-related bone loss is one of the major contributing factors to increased likelihood of bone fracture. Specific exercises can be used to strain bones and increase bone strength to counter the effects of bone loss. The flexible multibody simulation approach can be used as a non-invasive method for estimating bone strains caused by physical activity. This method was recently used to analyze the strain of locomotion in regard to human femur and tibia leg bones. The current study focuses on strain analysis of the femoral neck. The research test person was a clinically healthy 65-year old Caucasian male. The computed tomography was used to build a geometrically accurate finite element model of the femur with inhomogeneous material properties derived from the voxel data. The anthropometric data was used to model the musculoskeletal system of the test person. The multibody skeletal model was utilized to estimate loading on the femoral neck during walking, which represents a routine daily activity. The flexible multibody simulation results were compared to strains that occurred during a simulated fall onto the greater trochanter of the femur. The fall simulation was made entirely using finite element software. Results from the finite element analysis were compared with the previous study showing that the test person does not belong to the high-risk hip fracture group. Finally, the estimated strains gathered from the walking simulation were compared to the strain values from the simulated fall-down scenario. [ABSTRACT FROM AUTHOR] |
| Copyright of Multibody System Dynamics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 78030620 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Pilot study on proximal femur strains during locomotion and fall-down scenario. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kłodowski%2C+Adam%22">Kłodowski, Adam</searchLink><relatesTo>1</relatesTo><i> adam.klodowski@lut.fi</i><br /><searchLink fieldCode="AR" term="%22Valkeapää%2C+Antti%22">Valkeapää, Antti</searchLink><relatesTo>1</relatesTo><i> antti.valkeapaa@lut.fi</i><br /><searchLink fieldCode="AR" term="%22Mikkola%2C+Aki%22">Mikkola, Aki</searchLink><relatesTo>1</relatesTo><i> aki.mikkola@lut.fi</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Multibody+System+Dynamics%22">Multibody System Dynamics</searchLink>. Sep2012, Vol. 28 Issue 3, p239-256. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Bone+fractures%22">Bone fractures</searchLink><br /><searchLink fieldCode="DE" term="%22Older+people%22">Older people</searchLink><br /><searchLink fieldCode="DE" term="%22Femur%22">Femur</searchLink><br /><searchLink fieldCode="DE" term="%22Exercise%22">Exercise</searchLink><br /><searchLink fieldCode="DE" term="%22Bone+injuries%22">Bone injuries</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The most common and severe type of fracture among the elderly is known as a proximal femur fracture. Aging-related bone loss is one of the major contributing factors to increased likelihood of bone fracture. Specific exercises can be used to strain bones and increase bone strength to counter the effects of bone loss. The flexible multibody simulation approach can be used as a non-invasive method for estimating bone strains caused by physical activity. This method was recently used to analyze the strain of locomotion in regard to human femur and tibia leg bones. The current study focuses on strain analysis of the femoral neck. The research test person was a clinically healthy 65-year old Caucasian male. The computed tomography was used to build a geometrically accurate finite element model of the femur with inhomogeneous material properties derived from the voxel data. The anthropometric data was used to model the musculoskeletal system of the test person. The multibody skeletal model was utilized to estimate loading on the femoral neck during walking, which represents a routine daily activity. The flexible multibody simulation results were compared to strains that occurred during a simulated fall onto the greater trochanter of the femur. The fall simulation was made entirely using finite element software. Results from the finite element analysis were compared with the previous study showing that the test person does not belong to the high-risk hip fracture group. Finally, the estimated strains gathered from the walking simulation were compared to the strain values from the simulated fall-down scenario. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Multibody System Dynamics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11044-012-9312-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 239 Subjects: – SubjectFull: Bone fractures Type: general – SubjectFull: Older people Type: general – SubjectFull: Femur Type: general – SubjectFull: Exercise Type: general – SubjectFull: Bone injuries Type: general Titles: – TitleFull: Pilot study on proximal femur strains during locomotion and fall-down scenario. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kłodowski, Adam – PersonEntity: Name: NameFull: Valkeapää, Antti – PersonEntity: Name: NameFull: Mikkola, Aki IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 13845640 Numbering: – Type: volume Value: 28 – Type: issue Value: 3 Titles: – TitleFull: Multibody System Dynamics Type: main |
| ResultId | 1 |
