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Title:: Research on foot training system based on a 3-axis accelerometer for the elders

Author(s):: LI Junguo; YAN Rongguo; WANG Jiayu; QIU Xiaoye; LI Yongyang; School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093,China

Keywords:: Venous leg ulcers; Foot training; 3-Axis accelerometer; Wavelet transform; Peak detection

摘要:: 本研究设计了一种基于三轴加速度计的中老年足部训练系统，利用三轴加速度计、微处理器和无线蓝牙等器件组成数据采集平台，将采集到的足部运动加速度数据，通过无线蓝牙模块传送到智能手机上。利用智能手机平台，引导中老年进行各种下肢肌肉群的训练，用自编的App应用程序进行加速度数据的预处理、小波变换及其重构、去噪和特征提取，获取训练情况，并做出合理的评价和评估。

Abstract:: A rehabilitation training system for patients with leg ulcers based on a 3-axis accelerometer is designed. The system uses a 3-axis accelerometer, a microcontroller and a wireless bluetooth module to form the data acquisition platform to acquire acceleration of the foot motion, and send it to the smart mobile phone via the wireless bluetooth module. The system has a smart mobile phone to guide the older chronic venous leg ulcers to do all kinds of rehabilitation exercises for the lower limb muscles, uses an app to perform acceleration data preprocessing, wavelet transform and reconstruction, denoising and feature extraction, obtain the results of the rehabilitation exercises and give reasonable evaluation and judgment.