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Wearable Physiological Monitoring On A Mobile Phone
3/27/ :02 PM Wearable Physiological Monitoring On A Mobile Phone Nuria Oliver, PhD Researcher Microsoft Research © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
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Continuous Physiological Monitoring
New opportunities for wearable health and wellness continuous monitoring devices
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It’s a world of isolated gadgets…..
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Isolated Gadgets Zillions of gadgets to monitor various physiological and environmental signals Typically proprietary data transmission protocols Typically capture on-board and off-line processing of the data after downloading to a PC Very difficult if not impossible to combine signals from different gadgets Lack of real-time on-board processing of the information to deliver value to the user
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Opportunities For Mobile Phones
Continuous monitoring and understanding of multiple physiological and environmental signals Finding correlations between lifestyle and wellness/health Identifying trends and deviations from those trends Developing new interesting and fun applications Empowering users
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Two Exemplary Applications
Audiovox 5600 GSM mobile phone MPTrain HealthGear Blood oximeter Alivetec Alive ECG and Accelerometer sensor Automatically Monitor and Detect Sleep Apnea Events Music and Physiology-based Personal Trainer
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HealthGear: Goals And Motivation
Real-time, wearable physiological monitoring system on a mobile phone Physiological sensors wirelessly connected via Bluetooth to a mobile phone Continuous recording of blood oximetry, heart-rate and plethysmographic signal Real-time analysis and presentation of physiological data to the user Usage scenario: Sleep monitoring and automatic sleep apnea detection
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Application: Sleep Apnea
Underdiagnosed but common condition Affects children and adults 4% in men and 2% in women (higher for elderly) Untreated causes $3.4 billion of medical costs 40 million undiagnosed Americans Periods of interrupted breathing (apnea) and periods of reduced breathing (hypoapnea) Leads to Hypoxia, asphyxia and awakenings Increased heart-rate, high blood pressure Extreme fatigue, poor concentration Compromised immune system Cardio/cerebrovascular problems
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Sleep Apnea: Diagnosis
Nocturnal Polysomnography (PSG) In sleep center for 1-2 nights Continuous, simultaneous multi-channel measurements of 8 physiological signals Very expensive, cumbersome, time consuming, just one sample and subject to manual scoring and human error Pulse oximetry Useful as screening tool One simple, light-weight sensor on finger, toe or earlobe
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HealthGear’s Hardware
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Sleep Study 20 volunteers
80% male, ages 25-65 30% healthy, 70% with sleep apnea or suspected Filled out pre-sleep and post-sleep questionnaires Wore HealthGear for one or two full nights in their own homes
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No Apnea
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Mild-Severe Apnea
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Severe Apnea
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Long Term Sleep Studies
3 long-term (2-3 weeks at a time) sleep studies 1 long-term (2.5 months) study with MIT’s PlaceLab Investigated correlations between quality of sleep and lifestyle factors Alcohol and caffeine intake Diet Exercise Stress levels
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3/27/ :02 PM demo HealthGear © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
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Ongoing Work New hardware board!!
More long-term sleep studies (MIT, Univ. Virginia) Study on drivers that have apnea (Univ. Iowa) Study on aircraft pilots Summits of Canada expedition
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Two Exemplary Applications
Audiovox 5600 GSM mobile phone MPTrain HealthGear Alivetec Alive ECG and Accelerometer sensor Automatically Monitor and Detect Sleep Apnea Events Music and Physiology-based Personal Trainer
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Music And Exercise Music Provides Music Positively Impacts
Pacing Advantage Distraction Positive Mood Music Positively Impacts Endurance Performance Perception Exertion Perception
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Heart-rate And Exercise
Target HR zones recovery, weight management, aerobic, anaerobic, over-exertion Used to measure effort PHR reserve =(maxHR - restHR)*P + restHR
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MPTrain DBPM(t) Next Action Module Music Finding Module
Find the optimal slower song Find a similar song Find the optimal faster song DBPM(t) >0 <0 Slow down user Keep same speed Speed up user DBPM(t) = BPM(t) – Ideal BPM(t) BPM(t) = Current Heart rate SPM(t) = Current pace
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User Study: Exemplary Results
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Actual vs Desired Heart-rate on MPTrain mode
Actual Steps per Minute vs Tempo on MPTrain mode
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Ongoing Work Runner study with 18 runners to test a few new features of the system
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Conclusions Real-time collection and analysis of physiological and environmental signals on a mobile phone (Smartphone) Big opportunity for Constant monitoring of users Real-time feedback to users Finding correlations between lifestyle and health/wellness Identifying trends and deviations from those trends New applications and services
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Conclusions High impact on the society
Improving Quality of Life of Users Aging, chronic disease management, exercise, wellness, entertainment, affective and social computing, disease prevention, pro-active medicine, stress reduction, etc..
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Thank You!! More information nuria@microsoft.com
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3/27/ :02 PM © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION. © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
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