Estimation of Hip Joint Moment by an Inertial Measurement Unit
This research is to estimate the hip joint moment without using a force plate that disturbs the gate. The purpose of this research is to show that with a single leg supporting period, the system is statically fixed, making it possible to derive the hip joint moment from the balance of inertial force and gravity without a force plate. Therefore, in this research, a wearable inertial measurement unit was used to measure the acceleration and angle of five body parts, and the hip joint moment was estimated. The proposed method, which estimated the hip joint moment using the inertial measurement unit, and the conventional method which estimated the hip joint moment using the information of the force plate showed similar results. Thus, the validity of the proposed method was obtained.
KeywordsGait analysis Estimation Inertial force
This work was supported by JSPS KAKENHI Grant Number JP1811106.
- 1.Rose, J., Gamble, J.G. (eds.) Human Walking, Medical and Tooth drug publishing Co., Ltd, pp. 51–76 (2009)Google Scholar
- 2.Inoue, Y., Tao, L., Kyoko, S., Nobutaka, T.: Development of a mobile force plate system -flexible and wearable ground reaction force sensor. J. Biol. Res. 36, 241–243 (2012). (in Japanese)Google Scholar
- 4.Kotani, H., Yoshio, I., Kyoko, S., Motomichi, S.: Estimation of a hip joint moment by inertial force, The Japan Society of Mechanical Engineers Chugoku-Shikoku Bracch, The 48th Student Graduation Research Presentation Lecture 2018 (2018). (in Japanese)Google Scholar
- 5.Michiyoshi, A., Tang, H., Yokoi, T.: Estimation of inertia properties of the body segments in Japanese athletes. Soc. Biomech. Jpn. 11, 22–33 (1992). (in Japanese)Google Scholar