Measures when you stop burning FAT during any activity through your Breath, so you only workout for the minutes that matter.
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Production Prototype
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About this project
With the band on your wrist, you use the BREATH for about 5 minutes once a month while you take a walk or perform the activity of your choice. The Breath measures your oxygen and CO2 levels during each stage to predict your 24-hour metabolism to the minute.
The FAT band tracks a user’s active minutes and intelligently guides the user to reach optimal fat burn with a 24-hour heart rate monitor and a pulsing LED light.
The app is designed to alert the user and give simple, achievable exercise recommendations. The app uses both metabolic and heart rate information to predict the intensity and exact minutes of exercise each user needs to achieve specific fitness goals. As users progress, the individualized fitness program will be customized to the user’s unique body (does it get anymore personal than that?).
So how does it work?
Replay with sound
With the VO2max data, we confirmed what we already knew---we all burn fat differently. The duration of our fat burn during exercise highly depends on the intensity and our unique aerobic capacity.
Metabolic testing is the gold standard for fitness training and conditioning, but until now, has been reserved for elite athletes. We can measure the amount of carbon dioxide breathed out and the amount of oxygen breathed in. If we take a ratio of those 2 numbers we get what’s called RER. RER can give us basically how much carbohydrates vs fats you’re burning. So if an RER for example is .7 then you gonna be burning mostly fat. If the RER is 1.0 you gonna be burning mostly carbohydrates at that point.
Not only that, but our intensity during an exercise also predicts how much fat we can burn throughout the day.
The App learns over time how your exercise routine changes your metabolism and begins customizing your exercise recommendations based on how your body responds.
The gold standard metabolic cart has a Flow Sensor, an Oxygen Sensor and a Carbon Dioxide in it. However these sensors costs a lot. An oxygen sensor that could measure Breath-by-Breath data costs upward of $600. A CO2 sensor that could measure Breath-by-Breath data costs upward of $200.
We had to build our own CO2 sensor and Flow sensor from ground up and find an O2 sensor that could fit into a tiny device and still cost a fraction of the current solutions available.
After we built the CO2 and Flow sensor, it was the oxygen that took most of our time. It is definitely a hard find. We were able to find a sensor that could cost low and still give us reliable outputs. The humidity in breath was one of the challenges we had to work with. So we introduced a micro heater in the breath device that help prevent the condensation of humidity. With that, these are the accuracy graphs.
Our Bodies Burn fat not only during the exercise but also after we eat and while we sleep. The challenge for developing The FAT Band was to determine, with only a few minutes of breath analysis, how someone’s 24-hour metabolism works.
We collected data in respiratory chambers, 10x10ft roomsused to monitor a subject’s sleep, eat and exercise routines for 24 hours. We collected 27 days of data in the respiratory chambers with 3 different subjects, regulating their diet with high-carbohydrate, high fat and miscellaneous diet, periodically.
We trained our machine learning algorithms with data from the respiratory chambers. We further tested the algorithms with VO2max data of 300 individuals.
This is how the accuracy looks like:
A shout out to all the enthusiastic students at San Francisco State University and NITIE, Mumbai to make this data collection possible.
Short Answer, No. Once a month is a calibration test, which should personalize the experience for you, which will be more accurate than all the other devices in the market. However, you may use the Breath more than once, to evolve the accuracy of the system with your metabolism.
Meet The Team.
First, The big shout out to all those who helped us get the science right. They let us in their laboratories and play around with their equipment. This wouldn't had been possible without them.
Then our amazing designers from Huge Design. With the experience of designing wearables for Nike and Google, they wanted to create a user experience which is easy to learn and easy to use.
And the rest of us
**THE FOLLOWING PRODUCT IS FOR USE BY HEALTHY ADULTS AND IS NOT INTENDED FOR THE CURE, TREATMENT, PREVENTION, MITIGATION OR DIAGNOSIS OF ANY DISEASE OR CONDITION.
Risks and challenges
In Past 2 years, we've tried our best to mitigate all the risks we could possibly encounter. However, the world is full of surprises and we're prepared to take down any challenge that may possibly arise.
1. Component Sourcing: We're introducing a new product in the market and building our own sensors from ground up. This is not a small thing. We need all our vendors to deliver all the required components on the same time for us to start our manufacturing process and assembly line. Our vendors are already gearing up and building their tooling/manufacturing facilities to meet our requirements on time.
2. Certifications/Regulations: As an electronics manufacturer, we need to comply with certain regulations, like FCC and CE. Often times, these tests may take multiple design revisions. We've accounted for the same in our timeline and this should not be a problem.
3. Testing: Introducing a new product means introducing new set of testing environments where it needs to be tested 1000s times for the regular use. We've been working very closely with our manufacturing partners to prepare for the testing facility. But there are always things that you realise after you start producing the units.
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