2023-Walk-a-Lot

h1. 2 Estado da Arte

h2. 2.1 Apps in Healthcare

As of 2022, there were around 6.4 billion of smartphone mobile network subscriptions (https://www.statista.com/statistics/330695/number-of-smartphone-users-worldwide/), which is equivalent to around 79% of the population of the world. Besides that, the average number of hours spent on mobile phones ranges from 3-4 hours a day (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8685243/) up to even 5-7 hours (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9368281/). These habits are becoming detrimental to the well-being of people all around the globe, as it is shown in various studies (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9368281/; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10491487/). Since this problem is here to stay, at least from now, we can use this problem to our advantage, namely in health care.

In the past several years, health care professionals have begun using mobile devices, transforming many aspects of clinical practice and allowing the rapid emerge of medical software applications (apps).(https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029126/) They help professionals with many important tasks, such as: patient management and monitoring; information and time management; communications and consulting; reference and information gathering; clinical decision-making; medical education and training; and even time management.

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With that in mind, it is important to develop new apps for many devices and clinical problems, such as the app we developed for step counting and health monitoring, using the Vital Jacket (https://ieeexplore.ieee.org/document/5482268)

h2. 2.2 Vital Jacket

h2. 2.3 3-axis accelerometer and step counting

h2. 2.4 Step Counter as health indicator

h2. 2.5 Similar Apps