Comparison of Gender Specific and Anthropometrically Scaled Musculoskeletal Model Predictions Using the Sorensen Test

Whitley, Phillip E.; Roos, Paulien E.; Zhou, Xianlian

doi:10.1007/978-3-319-60591-3_42

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The numerical simulation of human-robot interaction aims to: 1) validate the feasibility of reducing the L5/S1 compression and shear force on a generic model of the human body; 2) evaluate the effect of our back exoskeleton. A highly detailed lumbar musculoskeletal model developed by Christopher et al [32] was integrated with a generic full body model [33] and used for this study. The human body model as shown in Fig.…”

Section: B Numerical Musculoskeletal Simulation Of Human-robot Intermentioning

confidence: 99%

Spine-Inspired Continuum Soft Exoskeleton for Stoop Lifting Assistance

Yang

Huang

et al. 2019

IEEE Robot. Autom. Lett.

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Back injuries are the most prevalent work-related musculoskeletal disorders and represent a major cause of disability. Although innovations in wearable robots aim to alleviate this hazard, the majority of existing exoskeletons are obtrusive because the rigid linkage design limits natural movement, thus causing ergonomic risk. Moreover, these existing systems are typically only suitable for one type of movement assistance, not ubiquitous for a wide variety of activities. To fill in this gap, this paper presents a new wearable robot design approach continuum soft exoskeleton. This spineinspired wearable robot is unobtrusive and assists both squat and stoops while not impeding walking motion. To tackle the challenge of the unique anatomy of spine that is inappropriate to be simplified as a single degree of freedom joint, our robot is conformal to human anatomy and it can reduce multiple types of forces along the human spine such as the spinae muscle force, shear, and compression force of the lumbar vertebrae. We derived kinematics and kinetics models of this mechanism and established an analytical biomechanics model of human-robot interaction. Quantitative analysis of disc compression force, disc shear force and muscle force was performed in simulation. We further developed a virtual impedance control strategy to deliver force control and compensate hysteresis of Bowden cable transmission. The feasibility of the prototype was experimentally tested on three healthy subjects. The root mean square error of force tracking is 6. 63 N (3.3 % of the 200N peak force) and it demonstrated that it can actively control the stiffness to the desired value. This continuum soft exoskeleton represents a feasible solution with the potential to reduce back pain for multiple activities and multiple forces along the human spine.

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Section: B Numerical Musculoskeletal Simulation Of Human-robot Intermentioning

confidence: 99%

Spine-Inspired Continuum Soft Exoskeleton for Stoop Lifting Assistance

Yang

Huang

et al. 2019

IEEE Robot. Autom. Lett.

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“…The resultant models are reasonably accurate in terms of both musculoskeletal geometry and strength, which proves the effectiveness of the developed methodology. We also applied the same methodology for anthropometric scaling of other musculoskeletal models such as upper extremity models and lumbar spine models for different applications [43]. Our method provides the capability to interactively generate accurate human musculoskeletal models with anthropometric scaling and a fast and convenient way to produce custom models for dynamic musculoskeletal simulations and analyses.…”

Section: Discussionmentioning

confidence: 99%

Neck musculoskeletal model generation through anthropometric scaling

et al. 2020

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A new methodology was developed to quickly generate whole body models with detailed neck musculoskeletal architecture that are properly scaled in terms of anthropometry and muscle strength. This method was implemented in an anthropometric model generation software that allows users to interactively generate any new male or female musculoskeletal models with adjustment of anthropometric parameters (such as height, weight, neck circumference, and neck length) without the need of subject-specific motion capture or medical images. 50 th percentile male and female models were developed based on the 2012 US Army Anthropometric Survey (ANSUR II) database and optimized with a novel bilevel optimization method to have strengths comparable to experimentally measured values in the literature. Other percentile models (ranging from the 1 st to 99 th percentile) were generated based on anthropometric scaling of the 50 th percentile models and compared. The resultant models are reasonably accurate in terms of both musculoskeletal geometry and neck strength, demonstrating the effectiveness of the developed methodology for interactive neck model generation with anthropometric scaling.

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“…56 The use of CoBi-Dyn for simulations is well accepted in the biomechanics literature. 45,[57][58][59] The simulations were aimed at estimating the intervertebral joint forces during normal walking, walking with the medium-sized ACH, and while riding a fast boat.…”

Section: Cyclic Loading Input For the Damage Modelmentioning

confidence: 99%

A non-linear multiaxial fatigue damage model for the cervical intervertebral disc annulus

Motiwale

Subramani

Kraft

et al. 2018

Advances in Mechanical Engineering

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A significant portion of the military population develops severe neck pain in the course of their duties. It has been hypothesized that neck pain is a consequence of accelerated degeneration of the intervertebral discs in the cervical spine, but more occupational and mechanistic-based tools and research are needed to positively confirm the link between neck pain and accelerated disc degeneration. Heavy head-supported mass including helmets and accessories worn by military personnel may subject the intervertebral discs of the cervical spine to complex cyclic loading profiles. In addition, some military operational travel which includes riding on high speed planing boats has also been reported to result in high magnitude cyclic loading on cervical spine discs. In this article, we present a methodology to computationally predict fatigue damage to cervical intervertebral discs over extended periods of time, by integrating kinematicsbased biomechanical models with a continuum damage mechanics-based theory of disc degeneration. Through this computational approach, we can gain insights into the relationship between these military activities and possible accelerated fatigue degeneration of cervical intervertebral discs and provide a quantitative prediction tool for decade-long time ranges. The four significant improvements this computational framework adds to the area of modeling intervertebral disc degeneration are the following: (a) it addresses the non-linear nature of fatigue damage evolution, (b) it includes the effect of aging and damage recovery to accurately simulate biological phenomena, (c) it computes fatigue damage taking into account the multiaxial stress state in the disc, and (d) it correlates the computational damage parameter with established clinical grading systems for disc degeneration.

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Comparison of Gender Specific and Anthropometrically Scaled Musculoskeletal Model Predictions Using the Sorensen Test

Cited by 5 publications

References 18 publications

Spine-Inspired Continuum Soft Exoskeleton for Stoop Lifting Assistance

Spine-Inspired Continuum Soft Exoskeleton for Stoop Lifting Assistance

Neck musculoskeletal model generation through anthropometric scaling

A non-linear multiaxial fatigue damage model for the cervical intervertebral disc annulus

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