Stiffness estimation of the medial gastrocnemius muscle in toe walking

Daichi Fukumori, Takanori Uchiyama

研究成果: Article査読

1 被引用数 (Scopus)

抄録

The purpose of this study is to estimate the stiffness of the medial gastrocnemius muscle in toe walking. Five young males participated in this experiment and walked at 3 km/h on a treadmill. Electrical stimulation was percutaneously applied to the medial gastrocnemius muscle at every second toe strike or terminal stance, and the mechanomyogram was measured. The evoked mechanomyogram was extracted by subtracting the walking vibration from the measured mechanomyogram. The evoked mechanomyogram system was identified using a singular value decomposition method, and the stiffness was calculated from the transfer function. The evoked mechanomyograms at both toe strike and terminal stance were approximated well with the third-order models. The stiffness in toe walking was larger than that in normal walking at both toe strike and terminal stance. The increase of the stiffness in toe walking might be caused by the muscle shape and muscle activity.

本文言語English
ページ(範囲)59-60
ページ数2
ジャーナルTransactions of Japanese Society for Medical and Biological Engineering
56
Proc
DOI
出版ステータスPublished - 2018 1月 1

ASJC Scopus subject areas

  • 生体医工学

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