Donna Spruijt‐Metz
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View article: A dynamic Bayesian network approach to modeling engagement and walking behavior: insights from a yearlong micro-randomized trial ( <i>Heartsteps II</i> )
A dynamic Bayesian network approach to modeling engagement and walking behavior: insights from a yearlong micro-randomized trial ( <i>Heartsteps II</i> ) Open
The results demonstrate the benefits of DBNs to model the daily-level idiographic behavioral dynamics of engagement in digital intervention studies. This approach can be leveraged to support the refinement of dynamic theories of behavior c…
View article: Beyond the current state of just-in-time adaptive interventions in mental health: a qualitative systematic review
Beyond the current state of just-in-time adaptive interventions in mental health: a qualitative systematic review Open
Background Just-In-Time Adaptive Interventions (JITAIs) are interventions designed to deliver timely tailored support by adjusting to changes in users' internal states and external contexts. To accomplish this, JITAIs often apply complex a…
View article: Modeling engagement with a digital behavior change intervention (HeartSteps II): An exploratory system identification approach
Modeling engagement with a digital behavior change intervention (HeartSteps II): An exploratory system identification approach Open
This novel approach has significant implications for both personalized and adaptive DBCIs by identifying factors that foster or undermine engagement in an individual's respective context. Once identified, these factors can be tailored to p…
View article: The frequency of using wearable activity trackers is associated with minutes of moderate to vigorous physical activity among cancer survivors: Analysis of HINTS data
The frequency of using wearable activity trackers is associated with minutes of moderate to vigorous physical activity among cancer survivors: Analysis of HINTS data Open
According to this model, survivors who reported daily WAT use were estimated on average to have weekly MVPA minutes that meet or exceed MVPA recommendations (>= 150 min of MVPA per week) compared to survivors who reported infrequent or no …
View article: Optimization of a Transdiagnostic Mobile Emotion Regulation Intervention for University Students: Protocol for a Microrandomized Trial
Optimization of a Transdiagnostic Mobile Emotion Regulation Intervention for University Students: Protocol for a Microrandomized Trial Open
Background Many university students experience mental health problems such as anxiety and depression. To support their mental health, a transdiagnostic mobile app intervention has been developed. The intervention provides short exercises r…
View article: Within-person relationships of sleep duration with next-day stress and affect in the daily life of adults with Type-1 diabetes
Within-person relationships of sleep duration with next-day stress and affect in the daily life of adults with Type-1 diabetes Open
Findings from this study suggest optimizing sleep duration as an important interventional target for better managing general stress and improving daily emotional wellbeing of individuals with T1D.
View article: Validity and Reliability of the Occupational Balance Questionnaire (OBQ11) in a U.S. Sample of Adults With Type 1 Diabetes
Validity and Reliability of the Occupational Balance Questionnaire (OBQ11) in a U.S. Sample of Adults With Type 1 Diabetes Open
Importance: Although occupational balance (OB) is a construct of importance to occupational therapy, existing OB assessments have not been validated in clinical populations. Objective: To examine the validity and reliability of the 11-item…
View article: Individual, Social and Environmental Influences on Sleep in Latino Pre-Adolescents: A Qualitative Analysis
Individual, Social and Environmental Influences on Sleep in Latino Pre-Adolescents: A Qualitative Analysis Open
A community-based qualitative study identified multilevel influences on sleep duration, quality, and timing in 10 to 12-year-old Latino pre-adolescents via 11 focus groups with 46 children and 15 interviews with parents. An iterative conte…
View article: Reliability and Validity of Noncognitive Ecological Momentary Assessment Survey Response Times as an Indicator of Cognitive Processing Speed in People’s Natural Environment: Intensive Longitudinal Study
Reliability and Validity of Noncognitive Ecological Momentary Assessment Survey Response Times as an Indicator of Cognitive Processing Speed in People’s Natural Environment: Intensive Longitudinal Study Open
Background Various populations with chronic conditions are at risk for decreased cognitive performance, making assessment of their cognition important. Formal mobile cognitive assessments measure cognitive performance with greater ecologic…
View article: Glycemic Risk Index Profiles and Predictors Among Diverse Adults With Type 1 Diabetes
Glycemic Risk Index Profiles and Predictors Among Diverse Adults With Type 1 Diabetes Open
Background: The Glycemia Risk Index (GRI) was introduced as a single value derived from the ambulatory glucose profile that identifies patients who need attention. This study describes participants in each of the five GRI zones and examine…
View article: Movement matters: short-term impacts of physical activity on mood and well-being
Movement matters: short-term impacts of physical activity on mood and well-being Open
Few studies have investigated the short-term, momentary relationships between physical activity (PA) and well-being. This study focuses on investigating the dynamic relationships between PA and affective well-being among adults with type 1…
View article: Impact of Overnight Glucose on Next-Day Functioning in Adults With Type 1 Diabetes: An Exploratory Intensive Longitudinal Study
Impact of Overnight Glucose on Next-Day Functioning in Adults With Type 1 Diabetes: An Exploratory Intensive Longitudinal Study Open
OBJECTIVE While there is evidence that functioning, or ability to perform daily life activities, can be adversely influenced by type 1 diabetes, the impact of acute fluctuations in glucose levels on functioning is poorly understood. RESEAR…
View article: Impact of overnight glucose on next-day functioning in adults with type 1 diabetes: An exploratory intensive longitudinal study
Impact of overnight glucose on next-day functioning in adults with type 1 diabetes: An exploratory intensive longitudinal study Open
Objective: While there is evidence that functioning, or ability to perform daily life activities, can be adversely influenced by type 1 diabetes, the impact of acute fluctuations in glucose levels on functioning is poorly understood. Re…
View article: Impact of overnight glucose on next-day functioning in adults with type 1 diabetes: An exploratory intensive longitudinal study
Impact of overnight glucose on next-day functioning in adults with type 1 diabetes: An exploratory intensive longitudinal study Open
Objective: While there is evidence that functioning, or ability to perform daily life activities, can be adversely influenced by type 1 diabetes, the impact of acute fluctuations in glucose levels on functioning is poorly understood. Re…
View article: Optimization of a Transdiagnostic Mobile Emotion Regulation Intervention for University Students: Protocol for a Microrandomized Trial (Preprint)
Optimization of a Transdiagnostic Mobile Emotion Regulation Intervention for University Students: Protocol for a Microrandomized Trial (Preprint) Open
BACKGROUND Many university students experience mental health problems such as anxiety and depression. To support their mental health, a transdiagnostic mobile app intervention has been developed. The intervention provides short exercises …
View article: Optimization of a Transdiagnostic Mobile Emotion Regulation Intervention for University Students: Protocol for a Micro Randomized Trial
Optimization of a Transdiagnostic Mobile Emotion Regulation Intervention for University Students: Protocol for a Micro Randomized Trial Open
This protocol details the evaluation of a transdiagnostic mobile app intervention targeting emotion regulation (ER) skills developed to support university students’ mental health. The study utilizes a sequential mixed-method design combini…
View article: Within-person Relationships of Sleep Duration with Next-Day Stress and Affect in the Daily Life of Adults with Type-1 Diabetes
Within-person Relationships of Sleep Duration with Next-Day Stress and Affect in the Daily Life of Adults with Type-1 Diabetes Open
Objective The objective of this study is to examine the within-person relationships between sleep duration and next-day stress and affect in the daily life of individuals with T1D. Methods Study participants were recruited in the Function …
View article: Reliability and Validity of Noncognitive Ecological Momentary Assessment Survey Response Times as an Indicator of Cognitive Processing Speed in People’s Natural Environment: Intensive Longitudinal Study (Preprint)
Reliability and Validity of Noncognitive Ecological Momentary Assessment Survey Response Times as an Indicator of Cognitive Processing Speed in People’s Natural Environment: Intensive Longitudinal Study (Preprint) Open
BACKGROUND Various populations with chronic conditions are at risk for decreased cognitive performance, making assessment of their cognition important. Formal mobile cognitive assessments measure cognitive performance with greater ecologi…
View article: The ILHBN: challenges, opportunities, and solutions from harmonizing data under heterogeneous study designs, target populations, and measurement protocols
The ILHBN: challenges, opportunities, and solutions from harmonizing data under heterogeneous study designs, target populations, and measurement protocols Open
The ILHBN is funded by the National Institutes of Health to collaboratively study the interactive dynamics of behavior, health, and the environment using Intensive Longitudinal Data (ILD) to (a) understand and intervene on behavior and hea…
View article: BayesLDM: A Domain-specific Modeling Language for Probabilistic Modeling of Longitudinal Data.
BayesLDM: A Domain-specific Modeling Language for Probabilistic Modeling of Longitudinal Data. Open
In this paper we present BayesLDM, a library for Bayesian longitudinal data modeling consisting of a high-level modeling language with specific features for modeling complex multivariate time series data coupled with a compiler that can pr…
View article: BayesLDM: A Domain-Specific Language for Probabilistic Modeling of Longitudinal Data
BayesLDM: A Domain-Specific Language for Probabilistic Modeling of Longitudinal Data Open
In this paper we present BayesLDM, a system for Bayesian longitudinal data modeling consisting of a high-level modeling language with specific features for modeling complex multivariate time series data coupled with a compiler that can pro…
View article: Effects of Group-delivered Stress-reduction Guided Imagery on Salivary Cortisol, Salivary Amylase, and Stress Mood in Urban, Predominantly Latino Adolescents
Effects of Group-delivered Stress-reduction Guided Imagery on Salivary Cortisol, Salivary Amylase, and Stress Mood in Urban, Predominantly Latino Adolescents Open
Objectives To determine acute effects of stress-reduction guided imagery delivered in group format on stress biomarkers salivary cortisol and salivary amylase, and on self-reported stress mood, in healthy, predominantly Latino adolescents.…
View article: Advancing Behavioral Intervention and Theory Development for Mobile Health: The HeartSteps II Protocol
Advancing Behavioral Intervention and Theory Development for Mobile Health: The HeartSteps II Protocol Open
Background: Recent advances in mobile and wearable technologies have led to new forms of interventions, called “Just-in-Time Adaptive Interventions” (JITAI). JITAIs interact with the individual at the most appropriate time and provide the …
View article: Validity and Feasibility of the Monitoring and Modeling Family Eating Dynamics System to Automatically Detect In-field Family Eating Behavior: Observational Study
Validity and Feasibility of the Monitoring and Modeling Family Eating Dynamics System to Automatically Detect In-field Family Eating Behavior: Observational Study Open
Background The field of dietary assessment has a long history, marked by both controversies and advances. Emerging technologies may be a potential solution to address the limitations of self-report dietary assessment methods. The Monitorin…
View article: The Acute Relationship between Affective States and Stress Biomarkers in Ethnic Minority Youths
The Acute Relationship between Affective States and Stress Biomarkers in Ethnic Minority Youths Open
Background: Whether affective states acutely predict the hypothalamic–pituitary–adrenal (HPA) axis activities and whether energy balance-related behaviors moderate the affect–HPA axis relationship in obese youths are not well-understood. M…
View article: Understanding Worker Well-Being Relative to High-Workload and Recovery Activities across a Whole Day: Pilot Testing an Ecological Momentary Assessment Technique
Understanding Worker Well-Being Relative to High-Workload and Recovery Activities across a Whole Day: Pilot Testing an Ecological Momentary Assessment Technique Open
Occupational health and safety is experiencing a paradigm shift from focusing only on health at the workplace toward a holistic approach and worker well-being framework that considers both work and non-work factors. Aligned with this shift…
View article: Function and Emotion in Everyday Life With Type 1 Diabetes (FEEL-T1D): Protocol for a Fully Remote Intensive Longitudinal Study
Function and Emotion in Everyday Life With Type 1 Diabetes (FEEL-T1D): Protocol for a Fully Remote Intensive Longitudinal Study Open
Background Although short-term blood glucose levels and variability are thought to underlie diminished function and emotional well-being in people with type 1 diabetes (T1D), these relationships are poorly understood. The Function and Emot…
View article: Smartphone-Based Interventions for Physical Activity Promotion: Scoping Review of the Evidence Over the Last 10 Years
Smartphone-Based Interventions for Physical Activity Promotion: Scoping Review of the Evidence Over the Last 10 Years Open
Background Several reviews of mobile health (mHealth) physical activity (PA) interventions suggest their beneficial effects on behavior change in adolescents and adults. Owing to the ubiquitous presence of smartphones, their use in mHealth…