Body stability and balanced plantar pressure distribution measurement using optical sensors

2017 ◽  
Author(s):  
Panida Povarasoontorn ◽  
C. Pintavirooj
Keyword(s):  
Pressure Distribution ◽  
Optical Sensors ◽  
Plantar Pressure ◽  
Distribution Measurement ◽  
Plantar Pressure Distribution

A portable plantar pressure system: Specifications, design, and preliminary results

2020 ◽  
Vol 28 (5) ◽  
pp. 553-560
Author(s):  
Michal Ostaszewski ◽  
Jolanta Pauk ◽  
Kacper Lesniewski
Keyword(s):  
Healthy Volunteer ◽  
Pressure Distribution ◽  
Plantar Pressure ◽  
Pressure Sensors ◽  
Pressure System ◽  
Distribution Measurement ◽  
Plantar Pressure Distribution ◽  
Portable System ◽  
Linearity Error ◽  
The Difference

BACKGROUND: In recent years, there has been an increasing interest in developing in-shoe foot plantar pressure systems. Although such devices are not novel, devising insole devices for gait analysis is still an important issue. OBJECTIVE: The goal of this study is to develop a new portable system for plantar pressure distribution measurement based on a three-axis accelerometer. METHODS: The portable system includes: PJRC Teensy 3.6 microcontroller with 32-bit ARM Cortex-M4 microprocessor with a clock speed of 180 MHz; HC-11 radio modules (transmitter and receiver); a battery; a fixing band; pressure sensors; MPU-9150 inertial navigation module; and FFC tape. The pressure insole is leather-based and consists of seven layers. It is divided into 16 areas and the outcome of the system is data concerning plantar pressure distribution under foot during gait. The system was tested on 22 healthy volunteer subjects, and the data was compared with a commercially available system: Medilogic. RESULT: The SNR value for the proposed sensor is 28.27 dB. For a range of pressure of 30–100 N, the sensitivity is 0.0066 V/N while the linearity error is 0.05. The difference in plantar pressure from both the portable plantar pressure system and Medilogic is not statistically significant. CONCLUSION: The proposed system could be recommended for research applications both inside and outside of a typical gait laboratory.

scholarly journals The Design and Simulation of a 16-Sensors Plantar Pressure Insole Layout for Different Applications: From Sports to Clinics, a Pilot Study

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1450
Author(s):  
Alfredo Ciniglio ◽  
Annamaria Guiotto ◽  
Fabiola Spolaor ◽  
Zimi Sawacha
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Center Of Pressure ◽  
Reaction Force ◽  
Weight Lifting ◽  
Lower Limbs ◽  
Plantar Pressure Distribution ◽  
Drop Landing ◽  
Mean Pressure ◽  
Footwear Design

The quantification of plantar pressure distribution is widely done in the diagnosis of lower limbs deformities, gait analysis, footwear design, and sport applications. To date, a number of pressure insole layouts have been proposed, with different configurations according to their applications. The goal of this study is to assess the validity of a 16-sensors (1.5 × 1.5 cm) pressure insole to detect plantar pressure distribution during different tasks in the clinic and sport domains. The data of 39 healthy adults, acquired with a Pedar-X® system (Novel GmbH, Munich, Germany) during walking, weight lifting, and drop landing, were used to simulate the insole. The sensors were distributed by considering the location of the peak pressure on all trials: 4 on the hindfoot, 3 on the midfoot, and 9 on the forefoot. The following variables were computed with both systems and compared by estimating the Root Mean Square Error (RMSE): Peak/Mean Pressure, Ground Reaction Force (GRF), Center of Pressure (COP), the distance between COP and the origin, the Contact Area. The lowest (0.61%) and highest (82.4%) RMSE values were detected during gait on the medial-lateral COP and the GRF, respectively. This approach could be used for testing different layouts on various applications prior to production.

The effect of shoe lacing on plantar pressure distribution and in-shoe displacement of the foot in healthy participants

2011 ◽  
Vol 33 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Karin Elisabeth Fiedler ◽  
Wijnand Jan A. Stuijfzand ◽  
Jaap Harlaar ◽  
Joost Dekker ◽  
Heleen Beckerman
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Plantar Pressure Distribution ◽  
Healthy Participants

Influence of sensory input on plantar pressure distribution

1995 ◽  
Vol 10 (5) ◽  
pp. 271-274 ◽  
Author(s):  
H Chen ◽  
BM Nigg ◽  
M Hulliger ◽  
J de Koning
Keyword(s):  
Pressure Distribution ◽  
Plantar Pressure ◽  
Sensory Input ◽  
Plantar Pressure Distribution
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