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There was a moment not that long ago when fitness trackers seemed like a niche business. Now, they’ve become ubiquitous, both in terms of smartphones having some fitness-tracking functionality and with a growing variety of wearables on the market. But there’s a lot of code behind the scenes to make your wristband, smart ring or cellphone compile information and process it — and a recent decision from Google could shake up the industry. Earlier , Google announced that “Google Fit developer services will be transitioning to become a core part of the Android Health platform…..…Story continues…
By: Tobias Carroll
Source: InsideHook
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Critics:
Google Fit is a health-tracking platform developed by Google for the Android operating system, Wear OS, and iOS. It is a single set of APIs that blends data from multiple apps and devices. Google Fit uses sensors in a user’s activity tracker or mobile device to record physical fitness activities (such as walking, cycling, etc.), which are measured against the user’s fitness goals to provide a comprehensive view of their fitness.
Google Fit was announced at the Google I/O conference on June 25, 2014. A software development kit for Google Fit was released on August 7, 2014. Fit launched to the public on October 28, 2014. In August 2018, Google announced a revamp to its Android Fit platform which adds activity goals based on activity recommendations from the American Heart Association and the World Health Organization.
The updates are meant to help Fit better provide metrics for activities other than walking and encourage users to engage in activities that will raise the heart rate without necessarily requiring a trip to the gym. In April 2019, Google announced Google Fit for iOS offering similar experience to its Android counterpart. Google Fit for iOS used Apple Health, Nike Run Club, Headspace or connected device such as Apple Watch or Wear OS smartwatch connected to user device.
In August 2019, Google announced dark theme, sleep insights and workout map feature availability. In April 2020, Google redesigned Google Fit. In November 2020, Google Fit added iOS 14 widget. In February 2021, Google announced a Pixel 5 exclusive feature for Google Fit, heart rate and respiratory measurement using Pixel 5’s camera. In June 2021, Google announced support for paced walking. In 2022, Google began to deprecate Google Fit in favor of acquiring Fitbit and the Health Connect APIs. Google stated that the Google Fit APIs will be shut down in 2025.
Google Fit provides a single set of API for apps and device manufacturers to store and access activity data from fitness apps and sensors on Android and other devices (like wearables, heart rate monitors or connected scales). Users can choose who their fitness data is shared with as well as delete this information at any time. Wearable heart rate monitors for athletes were available in 1981.
Improvements in technology in the late 20th and early 21st century made it possible to automate the recording of fitness activities, as well as to integrate monitors into more easily worn equipment. The RS-Computer shoe was released in 1986. Early examples include wristwatch-sized bicycle computers that monitored speed, duration, distance, etc., available at least by the early 1990s.
By at least the early 2000s, wearable fitness tracking devices were available as consumer-grade electronics, including wireless heart rate monitors that could be connected to commercial-grade exercise machines in gyms. Athletes are usually tracked with the levels of internal and external loads, where external loads will consist of the performance outcomes usually witnessed by coaches, and internal loads consist of factors such as heart rate, blood pressure, and blood lactate levels.
When taking into account the well-being of the subject, subjective scales are involved which measure fatigue, sleep quality, emotions, and soreness. Activity trackers later diversified to include wristbands and armbands (so-called smart bands) and smaller devices that could be clipped wherever preferred. In 2006 Apple and Nike released the Nike+iPod, a sensor-equipped shoe that worked with an iPod Nano.
By 2010, logging apps had been introduced, many of which integrated the direct sharing of data to Facebook ot Twitter. Activity trackers became appealing to consumers because of the combination of gamification, the social dimension of sharing via social media, and increased motivation due to the resulting rivalry and competition between friends. In 2016, there were several advances made regarding fitness tracking geared toward kids with a variety of options from organizations such as UNICEF and Garmin.
Most consumer activity trackers are worn on a wristband similar to a wristwatch. This type of tracker usually includes a digital display for data. Wrist-based trackers may be prone to error during exercise involving rapid arm motion. Some activity trackers take the form of a ring. Ring-based trackers have no display of their own and rely on a connection with a smartphone to display tracked data.
Another low-profile format for activity trackers places sensors inside of earphones. These trackers rely on a smartphone to display data, similar to ring-based trackers. Earphone-based activity trackers use sensors to take readings directly from the capillaries located within the ear. Due to their placement, these trackers can give more accurate results for blood pressure, electrocardiogram, and body temperature. Activity trackers placed in the ear are also well suited to the assessment of heart rate.
Many devices primarily intended as smartwatches also function as activity trackers. An early example was the Apple Watch, which has offered has offered fitness tracker functions since 2014. The standard activity-tracking smartphone or web apps present data in statistical form meant to be viewed after the activity has ended. However, research suggests that if we want a richer understanding of the data, we need intelligent computing to be included in the systems that run the apps.
Certain movements of the user can distort the results obtained from activity trackers as seen in a test conducted by Stiftung Warentest where the products were unable to accurately track a bike ride. Furthermore, the determined values for the human energy transformation were erroneous. With the heart rate large deviations have been observed at wristlet trackers, and it is recommended for this purpose to use appropriate chest straps. Wristbands can be uncomfortable to wear and inadvertently be lost. For some products, genotoxic substances were detected.
There have been some privacy issues regarding the data collection of activity-tracking apps, a user’s health can be tracked into a “digital health footprint”. There have been many concerns about privacy issues with menstruation and reproductive health-tracking apps. Many women who use these apps for menstrual and contraceptive tracking are under the impression that their data is private when there is no single body regulating the apps, making the availability and protection of the data unknown.
The apps of some activity trackers not only transmit personal data but also private address lists to servers on the Internet without notifying or asking the user. Even when anonymized, the mere presence of geolocation data may be a national security risk. However, the results of a study among semi-professional (half-) marathon participants suggest that certain users are open to sharing tracked activity data voluntarily.
In the US in 2013, BodyMedia developed a disposable activity tracker to be worn for a week, which is aimed at medical and insurance providers and employers seeking to measure employees’ fitness. In 2014, Jawbone developed a system called UP for Groups which could provide employers with aggregated data from employees’ wearable activity trackers and apps.
Research has been carried out on the gamification of health apps, where users earn incentives and rewards based on their health goals. Though this can make the app engaging, there was concern it could trivialize health apps and deter the users from their genuine health goals. There is also research problematizing tracking devices about how we inhabit, experience, and imagine our bodies and lives.
Google will add a secure “private space” for apps in Android 15 among other additions
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