1. 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.

2. Continuous Physiological Monitoring
New opportunities for wearable
health and wellness continuous monitoring devices

3. It’s a world of
isolated gadgets…..

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. HealthGear’s Hardware

11. 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

12. No Apnea

13. Mild-Severe Apnea

14. Severe Apnea

15. 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

16. 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.

17. 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

18. 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

19. Music And Exercise Music Provides Music Positively Impacts
Pacing Advantage
Distraction
Positive Mood
Music Positively Impacts
Endurance
Performance Perception
Exertion Perception

20. Heart-rate And Exercise
Target HR zones
recovery, weight management, aerobic, anaerobic, over-exertion
Used to measure effort
PHR reserve =(maxHR - restHR)*P + restHR

21. 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

22. User Study: Exemplary Results

23. Actual vs Desired Heart-rate on MPTrain mode
Actual Steps per Minute vs Tempo on MPTrain mode

24. Ongoing Work
Runner study with 18 runners to test a few new features of the system

25. 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

26. 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..

27. Thank You!! More information nuria@microsoft.com

28. 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.