Download Fitness Respiration Monitor. Brigitte Quirk. Evaline Ju. Lily Kwan. Gabriel Mitchell . Introduction. About The Strap. Use: Smart Watch App: Results. Conclusion. Acknowledgments. References. Problem. Goal. Improper breathing when exercis
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FORM Fitness Respiration Monitor Brigitte Quirk
Introduction Improper breathing when exercising can lead to muscle and bone injuries. In extreme cases, individuals who are not obtaining enough oxygen by holding their breath for extended periods of time can faint and potentially hurt themselves and others. Injuries require lengthy rest and recovery, which slows the progression of fitness goals, and often require a visit to a doctor. Emergency room visits due to weight training from 1990-2007: 1,000,000¹
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CrossFit athletes who have sustained an injury (1990-2007): 23.5%¹
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CrossFit injuries per 1000 hours of training: 13.1¹
Evaline Ju
Lily Kwan
Gabriel Mitchell
About The Strap
Results With testing, we have shown that the stretch sensor is sensitive enough to track breathing and output measurements that can be used by the micro-controller to infer breathing patterns. The stretch sensor is located along the band of the device to measure chest expansion accurately. The following plots were constructed with MATLAB with data collected by the stretch sensor connected to the micro-controller. Stretch sensor values were recorded over two time periods of thirty seconds each, one where the individual was breathing normally, and another where the individual was breathing deeply.
LED: indicates calibration and on mode
Microcontroller: Adafruit Feather M0
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Typical Doctor’s visit cost: $100-$200²
Battery: rechargeable, lasts 5 hours
Stretch Sensor
Problem In the current market of personal fitness monitors, there is not currently an affordable and accurate device that notifies the user of dangerous breathing rates and breathing depths as they occur.
Figure 1. Diagram of electronics inside casing. All components are connected to an Adafruit Feather M0 microcontroller, and powered by a rechargeable 3.3V LiPo battery.
Use:
1
2
Adjust strap so it fits
Put strap on and hold
snugly around the
the button for 3
lower chest
seconds
4
LED on means
product is on and
If you feel slow vibrations, breathe
functioning
deeper!
3
Three slow blinks
To design a comfortable and functional breathing monitor for use during exercise. Exercise enthusiasts can wear this device and be notified in real time through vibration feedback if they are not breathing deeply enough or often enough.
user to inhale and
the user to exhale and hold for 5 seconds
hold their breath
5
If you feel fast vibrations,
Plug it into you computer or sync with a bluetooth
breathe more
device to look at your breathing habits with our
frequently!
handy dandy app.
normally
Goal
occur, telling the
Calibrate:
Five fast blinks tell
Figure 2. Stretch sensor measurements during normal and deep breathing patterns. Results show the ability of the stretch sensor to accurately track breathing.
Smart Watch App:
Conclusion
Average full breaths per workout
Final project uses a stretch sensor to measure expansion of chest and breathing rates � Microprocessor processes the data and measures instantaneous breathing rates and breathing rates over time � Vibration motor provides feedback to let the user know when he or she needs to take deeper or more frequent breaths �
Short breath
Completed full breath Calibrated full breath threshold
Responsive breathing ring which visualizes force sensor on chest
89
%
Acknowledgments This project was supported by Carnegie Mellon University’s Biomedical Engineering Department. We would like to thank our professor and department head Conrad Zapanta, as well as our TA’s Bruce Che, Angela Lai, and Lexi Shea. We would like to thank Wayne Chung for his guidance in design. Special thanks to Connor Young and Andy Chan with VIT for sponsoring our project and helping with our design.
