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As the popularity of fitness trackers has increased, so have the opportunities to use such devices to not only track fitness goals but also increase the motivation to meet those goals.Researchers in the College of Engineering and the College of Health and Human Development at Penn State have teamed up to use control systems engineering tools to tailor motivational messages sent to individual device users. The results of their study were published in Health Psychology."One of the really exciting advances of the last 15 years has been the advent of wearable and portable consumer technology that can be used to help promote physical activity," said David Conroy, professor of kinesiology and human development and family studies, and co-principal investigator on the paper.David added, "You can get real-time feedback from these devices and monitor your goals, and you can even push people messages, depending on what their goals are and what their behaviour is. We know that those messages work well for improving behaviour on average. But nobody is average, and we don't know how to make sure each individual consistently gets the greatest benefit from a limited number of messages."Conroy said that researchers have tried several strategies, including messages that are specific to certain population segments; messages based on recent behaviour -- for example, sending one of two different messages depending on if a user did or did not meet their goals the previous day; and customizing the messages by putting in a person's name or something they might like. So far, none of these approaches has proven to be consistently effective in improving the messages' effects.The new messaging approach developed by Conroy and Constantino Lagoa, co-principal investigator and professor of electrical engineering, applies tools used regularly in controlled systems engineering to behaviour science."Essentially, we're using the same mathematical tools that people in control engineering usually use to model behaviours as differential equations," Lagoa said. "We're using those models to design feedback controllers that take into account the current state of the person and together with the model decide what is the best time to send the messages."Conroy emphasized that establishing the correct dosing -- meng the type of message and its timing, frequency and context -- is a critical part of this approach."We're really prioritizing understanding the dosing so that we only send the right message at the right time and in the right context so people get the benefits that they're looking for," he said. "We don't want to disrupt them without them getting the payoff that they're looking for."The researchers refer to this individualized approach as precision behavioural medicine."This is one of the first studies that were able to leverage data collected from each individual and zoom in on his or her personal response," Lagoa said.One of the main examples of how the researchers personalized the messages was by considering the weather in the area of the user, noting that certain messages were more effective for certain individuals on rainy days, hot days and so on.The researchers acknowledged the potential concern people may have about trading privacy for personalization but said that the automation means that the data can be used and then discarded, as opposed to stored, and the location settings only need to be approximate to know the weather and customize the messaging appropriately. They also said, if their approach is commercialized, users would be able to adjust their settings to select how much information to share, and they plan on conducting more research before applying their approach to a larger population."We've established here is there's a new tool to use with an established problem," Conroy said. "Our next project will focus on establishing efficacy: Does this work better than sending messages at random or not sending messages at all? But once we establish efficacy, I would imagine that it'd be very attractive to device manufacturers to consider this kind of approach."Other authors of the paper include Sarah Hojjatinia, a former electrical engineering graduate student and currently at Advanced Safety & User Experience; Sahar Hojjatinia, an electrical engineering graduate student; and Deborah Brunke-Reese, research project manager for the Motivation Lab in the College of Health and Human Development.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Health :Researchers take steps toward more effective fitness trackers, more physical activity

As the popularity of fitness trackers has increased, so have the opportunities to use such devices to not only track fitness goals but also increase the motivation to meet those goals. ...