Abstract
Measuring the foot plantar pressure has the potential to be an important tool in many areas such as enhancing sports performance, diagnosing diseases, and rehabilitation. In general, the plantar pressure sensor should have robustness, durability, and high repeatability, as it should measure the pressure due to body weight. Here, we present a novel insole foot plantar pressure sensor using a highly sensitive crack-based strain sensor. The sensor is made of elastomer, stainless steel, a crack-based sensor, and a 3D-printed frame. Insoles are made of elastomer with Shore A 40, which is used as part of the sensor, to distribute the load to the sensor. The 3D-printed frame and stainless steel prevent breakage of the crack-based sensor and enable elastic behavior. The sensor response is highly repeatable and shows excellent durability even after 20,000 cycles. We show that the insole pressure sensor can be used as a real-time monitoring system using the pressure visualization program.
Highlights
Measurement systems for foot plantar pressure are gaining attention in biomedical and sports-related research fields, such as ergonomic footwear design [1], sports performance analysis [2]and injury prevention, improvement in balance control [3], physical therapy, rehabilitation training systems [4,5,6], and disease diagnosis [7]
The pressure sensor consists of stainless steel, a crack-based sensor, a frame, and the elastomer (Figure 1b)
The crack-based crack-based sensor shows shows resistance resistance variation variation according according to to the strain applied to the metal layer
Summary
Measurement systems for foot plantar pressure are gaining attention in biomedical and sports-related research fields, such as ergonomic footwear design [1], sports performance analysis [2]and injury prevention, improvement in balance control [3], physical therapy, rehabilitation training systems [4,5,6], and disease diagnosis [7]. Monitoring foot plantar pressure distribution during daily activities provides a lot of useful biometric information related to human health condition. Analysis of this information helps us to develop personal-optimized footwear, enhance sports performance, monitor the rehabilitation state of a patient, and even detect diabetic foot ulceration early. To obtain the information effectively and accurately, a variety of plantar pressure measurement systems have been reported They can be classified into two types, platform systems [8,9,10,11] and in-shoe systems, which have advantages of long-term usage and mobility, respectively [12,13,14,15,16,17,18,19,20,21,22,23,24,25]. In-shoe systems are receiving more attention than platform systems these days due to their extensive utility
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
