FOOTWEAR & SENSING Projects RUNSAFER & WIISEL Juan V. Durá juan.dura@ibv.upv.es RUNSAFER
Sensors on footwear Insole systems for gait analysis and gait monitoring have been developed and commercialized. Most they current systems commercialized are restricted to laboratory environments; connect the in-shoe system (plantar sensors) with the data acquisition / battery / inertial sensors through wires making the system more bulky to wear. In other cases, cumbersome electronic boxes have to be attached to the ankles, the back of the shoe or at the waist of the subject which reduces the usability of the system 2
From lab to real world Reduce power consumption Wireless communication Comfort & Fashionable design People do not pay extra price without added value. Focus on specific applications that offer added value? Projects RUNSAFER & WIISEL are examples of specific applications 3
WIISEL Wireless Insole for Independent and Safe Elderly Living
Consortium I Fundació Privada CETEMMSA (CETEMMSA), Spain - the Coordinator - Universitat Autònoma de Barcelona (UAB), Spain Istituto Nazionale di Riposo e Cura per Anziani INRCA (INRCA), Italy The Foundation for Medical Research Infrastructural Development and Health Services next to the Medical Center TEL AVIV (TASMC), Israel Spring Techno GMBH & CO. KG (SPRING TECHNO), Germany Tejidos Indesmallables GEISA, S.L. (GEISA), Spain National University of Ireland, GALWAY (NUI Galway), Ireland ACREO AB, Sweden Instituto de Biomecánica de Valencia (IBV) Technical Research Centre for Dependency Care and Autonomous Living (CetPD-UPC) Centro Nacional de Microelectrónica (IMB CNM, CSIC). 5
Concept Main goal: To develop a flexible research tool to collect and analyse gait data from real users and correlate parameters related with the risk of falls Twofold approach: Continuous monitoring of the gait (not only restricted to clinical environments). Fall risk assessment through data analysis and and and pattern recognition. 6
Concept: Overview of System 7
Technical issues solved Insole Substrate Pressure Sensors Electronics & Signal Conditioning Short Range Comms Antenna Battery Induction Charging 8
Technical Issues: Smart Phone System Communication Protocol Compatibility Devices Data Security External Server Access Interfaces 9
Technical Issues: Long Range Communications Network Protocols Reliability Security Data Compatibility 10
Technical Issues: Data Analysis and Algorithms Fall Detection Algorithm Fall Prediction Algorithm Data Feedback Warning Systems 11
The solution 14 pressure sensors/insole 1 accelerometer/insole 1 gyroscope/insole Battery with inductive charger/insole. Smartphone Charging station 12
The solution: Algorithms The fall risk index based on gait pattern of fallers and non fallers. Depending on how much the current gait parameter of subjects fit to these patterns, an index is calculated with a range from 0 to 100, where 0 means no fall risk and 100 means high fall risk. The risk index is divided in 3 parts. Part 1 ranges from 0 to 30, indicating low or no fall risk. Part 2 ranges from 30 to 70, indicating medium fall risk. Part 3 ranges from 70 to 100, indicating fall risk. 13
RUNSAFER RUNSAFER Development of a new running shoe with embedded electronics providing real time biomechanical feedback to reduce injury risk and enhance motivation, and a web portal allowing real training management
PROJECT OVERVIEW. Concept, Goals and Expected results CONTENT Introduction RUNSAFER Concept Differentiation from competitors Technical Objectives
PROJECT OVERVIEW. Concept, Goals and Expected results CONTENT Introduction RUNSAFER Concept Differentiation from competitors Technical Objectives
Consortium I 17
Introduction IIII There are a lot of studies have shown the health benefits of running. Running has a positive impact on: o Physical fitness, muscular strength, depression, osteoporosis, blood pressure, obesity, and a variety of other measures of health. Running has become one of the most popular sports in the last years. o More and more runners are taking up this sport. o Only in Europe, approximately 36% of adults practice running. o There are over 80 million of European runners. 18
Introduction III However, many people start practicing running and then stop. o One of the most important reasons not to run is running injuries: o Injuries are the main reason not to run for approximately the 60% of European runners. o 38% of the European runners have, or have suffered a running injury. o Moreover, 20-70% of injuries are likely to re-occur. The main causes of running injuries are, among others, training errors, incorrect running pattern or technique, footwear, surface and warm-up. 19
Introduction II Running injuries could be avoided through measuring the biomechanical pattern and giving a feedback to the runner (while running, in real time) in order to correct them when necessary. Moreover, such running injuries could be prevented through of personalized training programs for the runner developed by experts in the field, and based on runner biomechanical parameters. 20
Introduction I The RUNSAFER Project is founded by the European Commission through the VII Framework Programme with the aim of developing a new system composed of: o o o A new running shoe + sensor system. A mobile phone application (APP). A web portal. 21
PROJECT OVERVIEW. Concept, Goals and Expected results CONTENT Introduction RUNSAFER Concept Differentiation from competitors Technical Objectives
RUNSAFER concept I 23
RUNSAFER concept IIIII 1 The RUNSAFER system will consist in a sensor system embedded on the running shoe, able to gather and transmit the main biomechanical parameters during running. 24
RUNSAFER concept IIII 2 The information will be wireless transmitted to the mobile phone of the runner while running, where a mobile phone application will inform in real time the runner about the planned activity, suggesting modifications on the activity to change the running pattern in order to avoid running injuries. 25
RUNSAFER concept III 2 The mobile phone application will have the possibility to integrate additional useful information as heart rate. 26
RUNSAFER concept II 3 After the running activity, the runner will be able to download all the generated running information in a web portal. 27
RUNSAFER concept I 3 This web portal will allow: Generation of training plans. Recommendations and the follow up of the training improvements. Web 2.0. functionalities, allowing the user to be in contact with other runners worldwide. Built and share contents as running routes, footwear info, etc. 28
PROJECT OVERVIEW. Concept, Goals and Expected results CONTENT Introduction RUNSAFER Concept Differentiation from competitors Technical Objectives
RUNSAFER differentiation from competitors II There are currently in the market monitoring running systems with a similar concept. Some examples are: ADIDAS MyCoach (Measuring device: pedometer + heart rate monitor) NIKE + (Measuring device: pedometer) The variables measured are mainly spatio-temporal parameters: Number or steps (pedometer) Position (GPS) Speed (GPS / pedometer) Distance (GPS / pedometer) Time Pace (GPS / pedometer) Burnt calories Heart rate (Chest band/wristwatch heart monitor) 30
RUNSAFER differentiation from competitors I However, these existing systems are unable to measure the main running biomechanical variables that lead the training process and could play an important role in injury prevention. The main differences of RUNSAFER system from competitors are: Measuring not only spatio-temporal data, but also include biomechanical parameters, allowing the characterization of the running pattern or technique. Mobile phone application synchronized with the sensor system, which provides real-time feedback about suggestions to avoid injuries and to improve performance. Web portal with personalized training programs based on biomechanical analysis of the running pattern and performance. 31
PROJECT OVERVIEW. Concept, Goals and Expected results CONTENT Introduction RUNSAFER Concept Differentiation from competitors Technical Objectives
Project Technical objectives IIIIII TO1: Measurement system embedded in the running shoe To develop a sensor system to be embedded in the running shoe - to measure and gather biomechanical parameters and variables characterizing runners running pattern. Some of the requirements are: - Robustness of the sensors - High autonomy (appropriate batteries life) - Low weight - Feasible and realistic retail price - Accurate - Small size 33
Project Technical objectives IIIII TO2: Wireless Transmission system To send the data measured in the shoe to the Micro-SD card inserted in the mobile phone. This system will be compatible with other sport measuring devices like heart rate bands, so the mobile application can integrate information from different sources. (i.e. Ant + protocol). Capable to make a first parameterization of selected biomechanical variables. both SHOES MOBILE PHONE MicroSD card VISUAL & AUDITIVE TRAINING RECOMMENDATIONS: REAL TIME FEEDBACK BIOMECHANICAL PATTERN DATA WEB PORTAL removable MEASUREMENT SYSTEM www 34
Project Technical objectives TO3: Running shoe With optimum biomechanical properties for running: IIII SHOES built with the best quality materials and their design is based on biomechanical, anthropometric and physiological criteria. 35
Project Technical objectives TO3: Running shoe With optimum biomechanical properties for running: IIII The MEASURING SYSTEM, able to gather biomechanical information. This embedded technology is autonomous, lightweight and robust. 36
Project Technical objectives III TO4: Base Mobile program to control communications protocol with the measuring system To receive the data from the shoe and transfer it to the mobile phone application. both SHOES MOBILE PHONE MicroSD card VISUAL & AUDITIVE TRAINING RECOMMENDATIONS: REAL TIME FEEDBACK BIOMECHANICAL PATTERN DATA WEB PORTAL 37
Project Technical objectives TO5: Mobile phone application MOBILE PHONE APPLICATION, able to receive and analyse the data sent by the running shoe, presenting results in real time and giving feedback to the runner. The mobile application can integrate information from different sport measuring devices, as GPS or heart rate bands II 38
Project Technical objectives I TO6: Web portal and user network The portal provides: Communication with mobile phone application to get the measured biomechanical data. Show the user all the results in a clear, easy and specific way. Personalized training program development, based on the user s registered information and biomechanical pattern. 39
RUNSAFER Juan V. Durá juan.dura@ibv.upv.es