Effect of considering stability requirements on antagonistic muscle activities using a musculoskeletal model of the human lumbar spine

The recruitment pattern of trunk muscles is determined using a three-dimensional model of the spine with two joints and six symmetric pairs of muscles in which both equilibrium and stability requirements are satisfied. Model predictions are verified using Anybody Modeling System (AMS) and Abaqus. The model is used to test the hypothesis that antagonistic muscle activities are necessary for the spinal stability. The model with stability constraints predicts muscle activities greater than those predicted without stability consideration. In agreement with experimental data, the stability-based model predicts antagonistic muscle activities. It is shown that spinal stability increases with trunk flexion and further improves at heavier tasks.

Effect of considering stability requirements on antagonistic muscle activities using a musculoskeletal model of the human lumbar spine Keywords:

Lumbar spine , Musculoskeletal modeling , Muscle recruitment , stability

Effect of considering stability requirements on antagonistic muscle activities using a musculoskeletal model of the human lumbar spine authors

Majid Hajihoseinali

Department of Mechanical Engineering Sharif University of Technology Tehran, Iran

Navid Arjmand

Department of Mechanical Engineering Sharif University of Technology Tehran, Iran

Hasan Nickpour

Department of Mechanical Engineering Sharif University of Technology Tehran, Iran

Farzam Farahmand

Department of Mechanical Engineering Sharif University of Technology Tehran, Iran

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https://civilica.com/doc/340118

Document National Code:

ICBME20_103

Index date: 14 April 2015

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Hajihoseinali, Majid and Arjmand, Navid and Nickpour, Hasan and Farahmand, Farzam,1392,Effect of considering stability requirements on antagonistic muscle activities using a musculoskeletal model of the human lumbar spine,20th Iranian Conference on Biomedical Engineering(ICBME2013),Tehran,https://civilica.com/doc/340118

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Type of center: دانشگاه دولتی

Paper count: 17,719

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