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

Saori Morino, Masaki Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationMFI 2017 - 2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages452-457
Number of pages6
Volume2017-November
ISBN (Electronic)9781509060641
DOIs
Publication statusPublished - 2017 Dec 7
Event13th IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems, MFI 2017 - Daegu, Korea, Republic of
Duration: 2017 Nov 162017 Nov 18

Other

Other13th IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems, MFI 2017
CountryKorea, Republic of
CityDaegu
Period17/11/1617/11/18

Fingerprint

Muscle
Chemical activation
Electromyography
Torque
Stabilization
Genetic algorithms

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Computer Science Applications

Cite this

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

Musculoskeletal model of a pregnant woman considering stretched rectus abdominis and co-contraction muscle activation. / Morino, Saori; Takahashi, Masaki.

MFI 2017 - 2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems. Vol. 2017-November Institute of Electrical and Electronics Engineers Inc., 2017. p. 452-457.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Morino, S & Takahashi, M 2017, Musculoskeletal model of a pregnant woman considering stretched rectus abdominis and co-contraction muscle activation. in MFI 2017 - 2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems. vol. 2017-November, Institute of Electrical and Electronics Engineers Inc., pp. 452-457, 13th IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems, MFI 2017, Daegu, Korea, Republic of, 17/11/16. https://doi.org/10.1109/MFI.2017.8170362
Morino S, Takahashi M. Musculoskeletal model of a pregnant woman considering stretched rectus abdominis and co-contraction muscle activation. In MFI 2017 - 2017 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems. Vol. 2017-November. Institute of Electrical and Electronics Engineers Inc. 2017. p. 452-457 https://doi.org/10.1109/MFI.2017.8170362
Morino, Saori ; Takahashi, Masaki. / 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. Vol. 2017-November Institute of Electrical and Electronics Engineers Inc., 2017. pp. 452-457
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