Journal article
Knee and Elbow 3D Strength Surfaces: Peak Torque–Angle–Velocity Relationships
Journal of applied biomechanics, Vol.28(6), pp.726-737
12/2012
DOI: 10.1123/jab.28.6.726
PMCID: PMC7050840
PMID: 22813601
Abstract
Recognizing the importance of both the torque-angle and torque-velocity relations, three-dimensional (3D) human strength capability, (i.e., peak torque as a function of both joint angle and movement velocity), have been increasingly reported. It is not clear, however, the degree to which these surfaces vary between joints, particularly between joints with similar biomechanical configurations. Thus, our goal was to compare 3D strength surfaces between the elbow and knee hinge joints in men and women. Peak isometric and isokinetic strength was assessed in 54 participants (30 men) using the Biodex System 3 Isokinetic Dynamometer. Normalized peak torque surfaces significantly varied between flexion and extension (within each joint) and between joints; however the normalized 3D torque surfaces did not differ between men and women. These findings suggest the underlying joint biomechanics are the primary influences on these strength surface profiles. Therefore, in applications such as digital human modeling, torque-velocity-angle relationships for each joint and torque direction must be uniquely represented to most accurately estimate human strength capability.
Details
- Title: Subtitle
- Knee and Elbow 3D Strength Surfaces: Peak Torque–Angle–Velocity Relationships
- Creators
- Laura A Frey-Law - Physical Therapy & Rehabilitation Science Graduate Program, Carver College of Medicine, The University of Iowa, Iowa City, IowaAndrea Laake - Virtual Soldier Research, Center for Computer-Aided Design, College of Engineering, The University of Iowa, Iowa City, IowaKeith G Avin - Physical Therapy & Rehabilitation Science Graduate Program, Carver College of Medicine, The University of Iowa, Iowa City, IowaJesse Heitsman - Virtual Soldier Research, Center for Computer-Aided Design, College of Engineering, The University of Iowa, Iowa City, IowaTim Marler - Virtual Soldier Research, Center for Computer-Aided Design, College of Engineering, The University of Iowa, Iowa City, IowaKarim Abdel-Malek - Virtual Soldier Research, Center for Computer-Aided Design, College of Engineering, The University of Iowa, Iowa City, Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of applied biomechanics, Vol.28(6), pp.726-737
- DOI
- 10.1123/jab.28.6.726
- PMID
- 22813601
- PMCID
- PMC7050840
- NLM abbreviation
- J Appl Biomech
- ISSN
- 1065-8483
- eISSN
- 1543-2688
- Language
- English
- Date published
- 12/2012
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Nursing; Physical Therapy and Rehabilitation Science; Mechanical Engineering
- Record Identifier
- 9984047641102771
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