Table 1.

Comparison between FSR, Piezoelectric and Velostat sensor with commercial system.

	Force Sensitive Resistor	Piezoelectric Sensor	Velostat	F-Scan System
Solution Purpose	Research	Research	Research	Commercial
Number of Sensing Units per Insole	16	16	1	960
Modularity	Highly Modular	Highly Modular	Low Modularity, requires to cut into pieces to achieve some modularity	Not Applicable
Cross-talk	Minimum Cross-talk due to having independent units	Minimum Cross-talk due to having independent units	Higher Cross-Talk in the Velostat sheet [41]	Minimum Cross-talk due to having independent units
Dynamic Response	Can provide dynamic, real-time data	Can provide dynamic, real-time data	Velostats are slower [20]	Can provide dynamic, real-time data
Hysteresis	Low hysteresis	Low hysteresis	High hysteresis [20], less suitable for dynamic gait cycle	Low hysteresis
Recording Complete Gait Cycle	Can produce full Gait Cycle in real-time	Can identify only heel strike and toe off [20]	Not dynamic enough to plot fast changing gait cycle in real-time	Can produce full Gait Cycle in real-time
Pressure Map Generation	Able to generate static to highly dynamic pressure maps	Cannot produce pressure map due to no static response	Able to generate static and less dynamic pressure maps [41]	Able to generate static to highly dynamic pressure maps
Comparative Cost (USD)	~170	~30	~10	20,000+