Musculoskeletal model of a pregnant woman considering stretched rectus abdominis and co-contraction muscle activation

Saori Morino, Masaki Takahashi

研究成果: Conference contribution

抜粋

Weight gain and stretched and weakens abdominal muscles by an enlarging gravid uterus are remarkable features during pregnancy. These changes elicit postural and movement instability and place strain on various body segments. In general, agonist and antagonist muscles of body segments act simultaneously to increase joint stabilization during human movements. The co-contraction might be well observed in pregnant women because of their unstable body joints. Musculoskeletal models are well used to investigate muscle load. However, very few studies have been conducted on the model for pregnant women. Additionally, it is difficult to estimate the co-contraction of muscles by using musculoskeletal models. Therefore, the purpose of this study is to construct musculoskeletal model for pregnant women and estimate co-contraction of trunk muscles. At first, motion analysis of sit-to-stand for a pregnant woman was conducted to obtain the motion and force data for inputting to musculoskeletal model. Simultaneously, muscle activation of rectus abdominis and longissimus were measured by using surface electromyography. On the other hand, the size and mass of body segment of a musculoskeletal model were changed to meet pregnant women. Then, stretched abdominal muscle was modeled. At last, the co-contraction of rectus abdominis and longissimus was estimated from EMG data and joint torque that was calculated from the musculoskeletal model using genetic algorithm.

元の言語English
ホスト出版物のタイトルMFI 2017 - 2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems
出版者Institute of Electrical and Electronics Engineers Inc.
ページ452-457
ページ数6
ISBN(電子版)9781509060641
DOI
出版物ステータスPublished - 2017 12 7
イベント13th IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems, MFI 2017 - Daegu, Korea, Republic of
継続期間: 2017 11 162017 11 18

出版物シリーズ

名前IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems
2017-November

Other

Other13th IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems, MFI 2017
Korea, Republic of
Daegu
期間17/11/1617/11/18

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Computer Science Applications

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  • これを引用

    Morino, S., & Takahashi, M. (2017). Musculoskeletal model of a pregnant woman considering stretched rectus abdominis and co-contraction muscle activation. : MFI 2017 - 2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (pp. 452-457). (IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems; 巻数 2017-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MFI.2017.8170362