2020
DOI: 10.3390/ijerph17249350
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Self-Quantification Systems to Support Physical Activity: From Theory to Implementation Principles

Abstract: Since the emergence of the quantified self movement, users aim at health behavior change, but only those who are sufficiently motivated and competent with the tools will succeed. Our literature review shows that theoretical models for quantified self exist but they are too abstract to guide the design of effective user support systems. Here, we propose principles linking theory and implementation to arrive at a hierarchical model for an adaptable and personalized self-quantification system for physical activit… Show more

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Cited by 9 publications
(4 citation statements)
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“…155 With the advent of the quantified self, an exponential growth in the amount of quantified, longitudinal physical activity data opens opportunities to resolve several unanswered questions. 156 A central question revolves around 24-hour patterns of physical activity (eg, sleep, sedentary behavior) and how they may modify the association of physical activity with CVD. Separately, what role do genetic variants play in determining an individual’s ideal amount and intensity of physical activity?Finally, the pivotal role of individual choice cannot be understated.…”
Section: Discussionmentioning
confidence: 99%
“…155 With the advent of the quantified self, an exponential growth in the amount of quantified, longitudinal physical activity data opens opportunities to resolve several unanswered questions. 156 A central question revolves around 24-hour patterns of physical activity (eg, sleep, sedentary behavior) and how they may modify the association of physical activity with CVD. Separately, what role do genetic variants play in determining an individual’s ideal amount and intensity of physical activity?Finally, the pivotal role of individual choice cannot be understated.…”
Section: Discussionmentioning
confidence: 99%
“…In this study, the second research question is the length of time students listen This is in line with the previous studies that the length of use of podcasts has significantly impacted EFL listening comprehension (Şendağ et al, 2018). Related to the factors involved in using podcasts, several factors influence the adoption of new technology (Dulaud et al, 2020;Ifedayo et al, 2021;Martins et al,2020). These previous studies found that podcasts for teaching and learning increase context to the materials, students' motivation in learning language, mainly English, weekly activities for students, and personality acceptance and awareness on a hierarchy of time scales (hour, day, week), and also podcasts used by students due to interpersonal pressure and performance expectations.…”
Section: Mobility Factormentioning
confidence: 99%
“…This QS community is heterogeneous. While some QS-oriented people collect more or less all kinds of data (Ajana, 2017), and some have more specific goals, such as monitoring sports performance over years, to help reflect on their practice or tune it (Dulaud et al, 2020;Heyen, 2020), others carry out more deliberate experiments, usually to understand a possible correlation. That is: a formal protocol is developed; it is executed over a specific time; the data is gathered; and then analyzed toward a conclusion (Choe et al, 2015a).…”
Section: Insourcing To Outsourcing Lens Of Interactive Health Techmentioning
confidence: 99%