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====== Mind Your Step (MYST) ====== | ====== Mind Your Step (MYST) ====== | ||
- | Mind Your Step is the name of an [[start|additional assessment]]\\ | + | Mind Your Step is one of [[start|Lifelines]]' [[additional assessments]].\\ |
- | PROTOCOL\\ | + | This assessment was a collaboration between Lifelines and the [[https://www.hanze.nl/eng|Hanze University of Applied sciences]], Research group [[https://www.hanze.nl/eng/research/strategic-themes/healthy-ageing|Healthy Ageing]].\\ |
- | PERIOD | + | The first goal of the assessment was to gain insight in determinants related to the adoption of two [[https://en.wikipedia.org/wiki/Quantified_self|quantified self]]-devices: a digital weight scale and an activity tracker which could also measure sleeping behavior.\\ |
+ | The second goal was to assess to what extent a change in self-regulation capabilities can explain weight loss after 4 and 12 months of self-tracking.\\ | ||
+ | |||
+ | ===== Protocol ===== | ||
+ | |||
+ | The project took place between April 2016 and April 2017.\\ | ||
+ | Participants (>25 years old) were invited to use a digital weight scale and an activity tracker. | ||
+ | The devices were connected to a smartphone application, in which the user could see his or her own data and changes in these data over time.\\ | ||
+ | All of the participants participated in the study for one year. They filled out a digital questionnaire at the beginning of the study, after 4 months, and after 12 months. One questionnaire included possible determinants for adoption and effect of self-tracking devices (like personal variables, self-regulation for health, and motivation towards self-tracking). \\ | ||
+ | In addition, participants were asked to fill out an evaluation questionnaire about the usage, effect, and experience with the devices. | ||
+ | |||
+ | There was a restriction on number of participants because there were 100 activity trackers available. | ||
===== Subcohort ===== | ===== Subcohort ===== | ||
- | MYST was performed in [...] [[cohort|participants]]. | + | 700 participants between 25 and 65 years old were invited to be screened for participation. |
- | The selection criteria were the following: | + | 95 participants were included in the final study.\\ |
+ | |||
+ | The response rate: | ||
+ | * 85% (n=80) filled out the baseline questionnaire and installed both devices | ||
+ | * 77% (n=73) completed T1 questionnaire (after 4 months) | ||
+ | * 62% (n=46) completed T2 evaluation questionnaire (after 12 months) | ||
===== Variables ===== | ===== Variables ===== | ||
- | The following variables were collected: | + | The questionnaires included questions about intention to start with self-tracking, and intention to change weight, sleeping behavior and physical activity behavior. In addition, attitude, self-efficacy and social norm towards self-tracking, [[self-regulation]] for health and [[subjective health (general)|perceived health]] were measured.\\ |
+ | Weight and self-weighing frequency were calculated using the weight self-measurements the participants conducted.\\ | ||
+ | After 4 and 12 months of self-tracking, the participants filled out an evaluation questionnaire in which they could indicate their experiences with the devices, and whether they had changed their physical activity behavior and eating habits.\\ | ||
+ | |||
+ | ===== Findings ===== | ||
+ | |||
+ | Most participants were satisfied with the self-tracking devices, although the usage of the devices declined over time. Usage of the weight scale stabilized after 3 months of self-tracking.\\ | ||
+ | The Pulse activity tracker gave some technical problems, like a short battery life, and was therefore replaced until 6 months after the start of the study in at least 30 participants. Thereafter, no replacement was possible due to a restricted availability of the tracker.\\ | ||
+ | About 40% of the participants indicated to have changed their eating habits, and 60% indicated to have increased their physical activity behavior.\\ | ||
+ | On average, the participants lost 2 kg after 4 months, which was remained after 12 months. An increase in self-regulation capabilities (goal-orientation after 4 months and decision-making after 12 months) explained this weight loss, next to intention to change weight and self-weighing frequency.\\ | ||
+ | |||
+ | ===== Publications using MYST data ===== | ||
+ | * Kooijman, TJM et al. (2020) The role of self-regulation in the effect of self-tracking of physical activity and weight on BMI. Journal of Technology in Behavioral Science (in press). | ||