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Xiao Z, Li C, Wang X, Guo J, Tian Q. Muscle Strength Identification Based on Isokinetic Testing and Spine Musculoskeletal Modeling. CYBORG AND BIONIC SYSTEMS 2024; 5:0113. [PMID: 39040710 PMCID: PMC11261815 DOI: 10.34133/cbsystems.0113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 03/15/2024] [Indexed: 07/24/2024] Open
Abstract
Subject-specific spinal musculoskeletal modeling can help understand the spinal loading mechanism during human locomotion. However, existing literature lacks methods to identify the maximum isometric strength of individual spinal muscles. In this study, a muscle strength identification method combining isokinetic testing and musculoskeletal simulations was proposed, and the influence of muscle synergy and intra-abdominal pressure (IAP) on identified spinal muscle strength was further discussed. A multibody dynamic model of the spinal musculoskeletal system was established and controlled by a feedback controller. Muscle strength parameters were adjusted based on the measured isokinetic moments, and muscle synergy vectors and the IAP piston model were further introduced. The results of five healthy subjects showed that the proposed method successfully identified the subject-specific spinal flexor/extensor strength. Considering the synergistic activations of antagonist muscles improved the correlation between the simulated and measured spinal moments, and the introduction of IAP slightly increased the identified spinal extensor strength. The established method is beneficial for understanding spinal loading distributions for athletes and patients with sarcopenia.
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Affiliation(s)
- Zuming Xiao
- MOE Key Laboratory of Dynamics and Control of Flight Vehicle, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
| | - Chang Li
- Professional and Technical Innovation Center for Exercise Diagnosis and Evaluation, Shenyang Sport University, Shenyang, China
| | - Xin Wang
- Professional and Technical Innovation Center for Exercise Diagnosis and Evaluation, Shenyang Sport University, Shenyang, China
| | - Jianqiao Guo
- MOE Key Laboratory of Dynamics and Control of Flight Vehicle, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
| | - Qiang Tian
- MOE Key Laboratory of Dynamics and Control of Flight Vehicle, School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China
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Sequeira M, Simões F, Quental C, Ambrósio J, Fonseca P, Vilas-Boas JP, Nakashima M. Biomechanical framework for the inverse dynamic analysis of swimming using hydrodynamic forces from swumsuit. Comput Methods Biomech Biomed Engin 2023; 26:1443-1451. [PMID: 36093767 DOI: 10.1080/10255842.2022.2119384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/17/2022] [Accepted: 08/26/2022] [Indexed: 11/03/2022]
Abstract
This study aims to integrate an open-source software capable of estimating hydrodynamic forces solely from kinematic data with a full-body biomechanical model of the human body to enable inverse dynamic analyses of swimmers. To demonstrate the methodology, intersegmental forces and joint torques of the lower limbs were computed for a six-beat front crawl swimming motion, acquired at LABIOMEP-UP. The hydrodynamic forces obtained compare well with existing numerical literature. The intersegmental forces and joint torques obtained increase from distal to proximal joints. Overall, the results are consistent with the limited literature on swimming biomechanics, which provides confidence in the presented methodology.
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Affiliation(s)
- M Sequeira
- IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - F Simões
- IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - C Quental
- IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - J Ambrósio
- IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - P Fonseca
- LABIOMEP, Universidade do Porto, Porto, Portugal
| | - J P Vilas-Boas
- LABIOMEP, Universidade do Porto, Porto, Portugal
- Faculty of Sport, CIFI2D, Porto, Portugal
| | - M Nakashima
- Department of Systems and Control Engineering, Tokyo Institute of Technology, Tokyo, Japan
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Sylvester AD, Lautzenheiser SG, Kramer PA. A review of musculoskeletal modelling of human locomotion. Interface Focus 2021; 11:20200060. [PMID: 34938430 DOI: 10.1098/rsfs.2020.0060] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2021] [Indexed: 01/07/2023] Open
Abstract
Locomotion through the environment is important because movement provides access to key resources, including food, shelter and mates. Central to many locomotion-focused questions is the need to understand internal forces, particularly muscle forces and joint reactions. Musculoskeletal modelling, which typically harnesses the power of inverse dynamics, unites experimental data that are collected on living subjects with virtual models of their morphology. The inputs required for producing good musculoskeletal models include body geometry, muscle parameters, motion variables and ground reaction forces. This methodological approach is critically informed by both biological anthropology, with its focus on variation in human form and function, and mechanical engineering, with a focus on the application of Newtonian mechanics to current problems. Here, we demonstrate the application of a musculoskeletal modelling approach to human walking using the data of a single male subject. Furthermore, we discuss the decisions required to build the model, including how to customize the musculoskeletal model, and suggest cautions that both biological anthropologists and engineers who are interested in this topic should consider.
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Affiliation(s)
- Adam D Sylvester
- Center for Functional Anatomy and Evolution, The Johns Hopkins University School of Medicine, 1830 E. Monument Street, Baltimore, MD 21205, USA
| | - Steven G Lautzenheiser
- Department of Anthropology, University of Washington, Denny Hall, Seattle, WA 98195, USA.,Department of Anthropology, The University of Tennessee, Strong Hall, Knoxville, TN 37996, USA
| | - Patricia Ann Kramer
- Department of Anthropology, University of Washington, Denny Hall, Seattle, WA 98195, USA
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Sato E, Shigemitsu R, Mito T, Yoda N, Rasmussen J, Sasaki K. The effects of bone remodeling on biomechanical behavior in a patient with an implant-supported overdenture. Comput Biol Med 2020; 129:104173. [PMID: 33360261 DOI: 10.1016/j.compbiomed.2020.104173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 12/09/2020] [Accepted: 12/09/2020] [Indexed: 11/18/2022]
Abstract
This study aimed to clarify the effects of bone remodeling on biomechanical behavior in a patient with a mandibular implant-supported overdenture by comparing computed tomography-based finite element analyses (CT-FEA) with two time points of CT data. The present FEA was based on CT data collected from a 62-year-old female subject, who wore a mandibular implant overdenture supported by four dental implants with bar attachment. Two kinds of FE models were constructed from CT data taken at two time points: pre-implantation (Original-model) and 12 years post-implantation (Aged-model). FE models consisted of patient-specific model geometry and heterogeneous material properties. The deviation analysis was carried out to assess the changes in bone mass over a period of 12 years. The results show an averaging of intraosseous stress and strain energy density between the implant regions in the Aged-model. The results of the morphological assessments demonstrated that the bone mass and quality had significantly changed over 12 years. Area-specific bone resorption was also observed at the bone surrounding each implant. The combined findings indicate that the averaging of mechanical variables was due to chronological changes in bone morphology, suggesting adaptation to mechanical loads by peri-implant bone remodeling.
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Affiliation(s)
- Emika Sato
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, 980-8575, Japan
| | - Ryuji Shigemitsu
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, 980-8575, Japan; Department of Materials and Production, Aalborg University, Fibigerstrade 16, Aalborg East, DK, 9220, Denmark.
| | - Takehiko Mito
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, 980-8575, Japan
| | - Nobuhiro Yoda
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, 980-8575, Japan
| | - John Rasmussen
- Department of Materials and Production, Aalborg University, Fibigerstrade 16, Aalborg East, DK, 9220, Denmark
| | - Keiichi Sasaki
- Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, 980-8575, Japan
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Castro MN, Rahman T, Nicholson KF, Rasmussen J, Bai S, Andersen MS. A Case Study on Designing a Passive Feeding-Assistive Orthosis for Arthrogryposis. J Med Device 2020. [DOI: 10.1115/1.4047462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Abstract
Passive arm-assistive devices play an important role in the rehabilitation of patients with neuromuscular disorders or injuries by overcoming their motor deficit. Routine human activities such as feeding are not possible without the aid provided by one of these devices or by a caregiver. In this study, a body-powered assistive device was designed for feeding purposes using a compact spherical scissors mechanism and zero-free-length (ZFL) springs (rubber bands) to leverage the patient's residual biceps and healthy triceps function. This partially balanced and lightweight orthosis was also projected to accommodate the spring attachment points closer to the elbow joint center. The performance of the prototype was evaluated on a young adult with bilateral amyoplasia of the biceps due to arthrogryposis who could not initially reach the superior anterior aspect of the close-to-torso region of the reachable three-dimensional (3D) workspace (RWS). That was accomplished by measuring the anatomical RWS of the patient before and while wearing the device. The results show that the patient, with the assistance provided by the device, was able to attain positions in the frontal close-to-torso region of the body that included reaching her mouth, thus enabling independent feeding.
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Affiliation(s)
- Miguel Nobre Castro
- Department of Materials and Production, Aalborg University, Aalborg DK-9220, Denmark
| | - Tariq Rahman
- Nemours Biomedical Research, Nemours/Alfred I. duPont Hospital for Children, 1600 Rockland Road, Wilmington, DE 19803
| | - Kristen Faith Nicholson
- Nemours Biomedical Research, Nemours/Alfred I. duPont Hospital for Children, 1600 Rockland Road, Wilmington, DE 19803
| | - John Rasmussen
- Department of Materials and Production, Aalborg University, Aalborg 9220, Denmark
| | - Shaoping Bai
- Department of Materials and Production, Aalborg University, Aalborg 9220, Denmark
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