Design of a low-cost force insoles to estimate ground reaction forces during human gait

被引:0
作者
Guevara, Nelson E. [1 ,2 ,3 ]
Rengifo, Carlos F. [1 ,2 ]
Bolanos, Yamir H. [3 ]
Fernandez, Daniel A. [1 ,2 ,3 ]
Sierra, Wilson A. [4 ]
Rodriguez, Luis E. [4 ]
机构
[1] Univ Cauca, Res Grp Automat, Popayan, Colombia
[2] Univ Cauca, Dept Elect Instrumentat & Control, Popayan, Colombia
[3] Corp Univ Autonoma Cauca, Fac Engn & Nat Sci, Popayan, Colombia
[4] Escuela Colombiana Ingn Julio Garavito, Fac Biomed Engn, Bogota, Colombia
来源
HARDWAREX | 2024年 / 20卷
关键词
Ground reaction forces; Force insoles; Piezo-resistive sensors; ESP32; microcontrollers; Low-cost; 3D printing; PRESSURE;
D O I
10.1016/j.ohx.2024.e00589
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper proposes a low-cost electronic system for estimating ground reaction forces (GRF) during human gait. The device consists of one master node and two slave nodes. The master node sends instructions to slave nodes that sample and store data from two force insoles located at the participant's feet. These insoles are equipped with 14 piezo-resistive FlexiForce A301 sensors (FSR). The slave nodes are attached to the ankles and feet of each participant. Subsequently, the start command is transmitted through the master node, which is connected to the USB port of a personal computer (PC). Once the walking session is completed, the information obtained by the slave nodes can be downloaded by accessing the access point generated by these devices through Wi-Fi communication. The GRF estimation system was validated with force platforms (BTS Bioengineering P6000, Italy), giving on average a fit measure equal to 68.71%+/- 4.80% in dynamic situations. Future versions of this device are expected to increase this fit by using machine learning models.
引用
收藏
页数:21
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