Based on force sensing resistor(FSR) sensor, we designed insoles for pressure measurement, which were stable and reliable with a simple structure, and easy to wear and to do outdoor experiments with. So the insoles could be used for gait detection system. The hardware includes plantar pressure sensor array, signal conditioning unit and main circuit unit. The software has the function of data acquisition, signal processing, feature extraction and classification function. We collected 27 groups of gait data of a healthy person based on this system to analyze the data and study pressure distribution under various gait features, i.e. walking on the flat ground, uphill, downhill, up the stairs, and down the stairs. These five gait patterns for pattern recognition and classification by K-nearest neighbors (KNN) recognition algorithm reached up to 90% accuracy. This preliminarily verified the usefulness of the system.
Citation：
FANGZheng, ZHANGXingliang, WANGChao, GUXin, MAShenglin, WANGLei, CHENSiyuan. Experimental Gait Study Based on the Plantar Pressure Test for the Young People. Journal of Biomedical Engineering, 2014, 31(6): 1278-1282,1293. doi: 10.7507/1001-5515.20140242
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Copyright © the editorial department of Journal of Biomedical Engineering of West China Medical Publisher. All rights reserved
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- 1. 薛召军,靳静娜,明东,等. 步态识别研究现状与进展[J].生物医学工程学杂志,2008,25(5):1217-1221.
- 2. CHIRAZ B A. Gait as biometric for person identification in video sequences[J/OL]. Advanced Materials Research, 2001,20(8):2324-2328[2013-09-04]. http://citeseer.nj.nec.com/cs.
- 3. HUANG P S, HARRIS C J, NIXON M S. Comparing different template features for recognizing people by their gait[J/OL]. BMVC, 1998, 20(12):639-648[2013-09-04]. http://citeseer.nj.nec.com/cs.
- 4. 刘芳,张臻.基于脑电信号识别采集的假肢控制系统[J].现代生物医学进展,2006,6(12):143-145.
- 5. 张瑞红,王人成,金德闻,等.人体下肢表面肌电信号的检测与分析[J].,清华大学学报(自然科学版),2000,40(8):73-76.
- 6. MORENO J C, DE LIMA E R, RUIZ A F, et al. Design and implementation of an inertial measurement unit for control of artificial limbs:Application on leg orthoses[J]. Sensors and Actuators B:Chemical, 2006,118(2):333-337.
- 7. 韦启航.人体足底压力分布测量[J].北京生物医学工程,1991,10(4):246-254.
- 8. 陈雁西, 俞光荣. F-Scan足底压力步态分析仪临床应用现状[J]. 国外医学-骨科学分册, 2005,26(3):187-189.
- 9. 李伟,邱宏,徐江.人体足底压力分布测量系统[J/OL].人机在线,2010,30(1):19-23[2013-09-04].http://www.ergocn.com/wenzhai43.html.
- 10. 麻静媛. 对Novel Pedal足底压力分布测量系统应用技术的初步开发[J].中国体育科技, 2002, 38(7):23-25.
- 11. 李建设,王立平. 足底压力测量技术在生物力学研究中的应用与进展[J].北京体育大学学报,2005,28(2):191-193.
