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Investigating the Magnitude and Persistence of COVID-19–Related Impacts on Affect and GPS-Derived Daily Mobility Patterns in Adolescence and Emerging Adulthood: Insights From a Smartphone-Based Intensive Longitudinal Study of Colorado-Based Youths From June 2016 to April 2022

Investigating the Magnitude and Persistence of COVID-19–Related Impacts on Affect and GPS-Derived Daily Mobility Patterns in Adolescence and Emerging Adulthood: Insights From a Smartphone-Based Intensive Longitudinal Study of Colorado-Based Youths From June 2016 to April 2022

This study investigated the magnitude and persistence of changes in youth affect and daily mobility patterns following the COVID-19 pandemic, using GPS mobility data and biweekly affect surveys collected for up to 70 months between June 2016 and April 2022 from a sample of Colorado-based adolescent and young adult twins.

Jordan D Alexander, Kelly A Duffy, Samantha M Freis, Sy-Miin Chow, Naomi P Friedman, Scott I Vrieze

J Med Internet Res 2025;27:e64965

The Perceptions of Potential Prerequisites for Artificial Intelligence in Danish General Practice: Vignette-Based Interview Study Among General Practitioners

The Perceptions of Potential Prerequisites for Artificial Intelligence in Danish General Practice: Vignette-Based Interview Study Among General Practitioners

Contradictorily, the involvement of general practitioners (GPs) in developing concrete AI tools for general practice is limited [13,14]. In addition, limited research has been conducted to clarify the qualitative perspectives of GPs and other stakeholders regarding AI in general practice [15-20]. A closer examination of the same research reveals that only 3 studies have exclusively addressed the perspectives of GPs [18-20].

Natasha Lee Jørgensen, Camilla Hoffmann Merrild, Martin Bach Jensen, Thomas B Moeslund, Kristian Kidholm, Janus Laust Thomsen

JMIR Med Inform 2025;13:e63895

Combining Ecological Momentary Assessment and Social Network Analysis to Study Youth Physical Activity and Environmental Influences: Protocol for a Mixed Methods Feasibility Study

Combining Ecological Momentary Assessment and Social Network Analysis to Study Youth Physical Activity and Environmental Influences: Protocol for a Mixed Methods Feasibility Study

For example, EMA data may show a youth’s PA spikes when they are with a specific friend, but only if they are within a half-mile radius of a park, as indicated by GPS data. SNA reveals this friend is not particularly active themselves, but rather may be influential in triggering PA in groups, potentially exposing the youth to varied activity opportunities.

Tyler Prochnow, Genevieve F Dunton, Kayla de la Haye, Keshia M Pollack Porter, Chanam Lee

JMIR Res Protoc 2025;14:e68667

Dynamic Bidirectional Associations Between Global Positioning System Mobility and Ecological Momentary Assessment of Mood Symptoms in Mood Disorders: Prospective Cohort Study

Dynamic Bidirectional Associations Between Global Positioning System Mobility and Ecological Momentary Assessment of Mood Symptoms in Mood Disorders: Prospective Cohort Study

The aims of this study are to (1) perform the GPS feature selection by integrating EMA data across all participants and (2) explore the temporal bidirectional relationship between GPS features and EMA data over 6 months in individuals with mood disorders, with a particular emphasis on time lag effects. We conducted a prospective study to continuously collect passive smartphone GPS data and daily EMA data on mood-related symptoms over a 6-month period.

Ting-Yi Lee, Ching-Hsuan Chen, I-Ming Chen, Hsi-Chung Chen, Chih-Min Liu, Shu-I Wu, Chuhsing Kate Hsiao, Po-Hsiu Kuo

J Med Internet Res 2024;26:e55635

The Relation Between Passively Collected GPS Mobility Metrics and Depressive Symptoms: Systematic Review and Meta-Analysis

The Relation Between Passively Collected GPS Mobility Metrics and Depressive Symptoms: Systematic Review and Meta-Analysis

To be eligible, the following inclusion criteria had to be met: (1) any kind of GPS sensor data collection, (2) the data were collected by a wearable device such as smartphone or smartwatch, (3) an assessment of depressive symptoms was conducted either by self-report or by clinical diagnostic scales, and (4) reported outcomes included correlations between the collected GPS sensor data and depressive symptoms.

Yannik Terhorst, Johannes Knauer, Paula Philippi, Harald Baumeister

J Med Internet Res 2024;26:e51875

Assessing a GPS-Based 6-Minute Walk Test for People With Persistent Pain: Validation Study

Assessing a GPS-Based 6-Minute Walk Test for People With Persistent Pain: Validation Study

A potential solution to these issues could be to use GPS to measure the walking distance [39]. Modern smartphones include GPS receivers, and GPS-based walk tests can be conducted during an outdoor walk over level terrain (given this walk is free from the obstructions of tall buildings and does not involve many sharp turns).

Joshua Simmich, Nicole Emma Andrews, Andrew Claus, Megan Murdoch, Trevor Glen Russell

JMIR Form Res 2024;8:e46820

Comparing Self-Reported Running Distance and Pace With a Commercial Fitness Watch Data: Reliability Study

Comparing Self-Reported Running Distance and Pace With a Commercial Fitness Watch Data: Reliability Study

Runners opt for wearable GPS watches to track running training [19], with up to 90% of regular runners using some form of GPS monitoring when running [18]. GPS wearable technology quantifies running workload and speed [20]. A systematic review determined that there is excellent reliability for step counting and moderate validity for energy expenditure and distance run [21].

Garrett Bullock, Joanne Stocks, Benjamin Feakins, Zahra Alizadeh, Amelia Arundale, Stefan Kluzek

JMIR Form Res 2024;8:e39211

Using Smartphone Survey and GPS Data to Inform Smoking Cessation Intervention Delivery: Case Study

Using Smartphone Survey and GPS Data to Inform Smoking Cessation Intervention Delivery: Case Study

As a result, GPS-enabled smartphones allow researchers to study the behaviors, mobility, and activity spaces of individuals and deliver mobile health (m Health) interventions that were previously not feasible for potential consumers to access [6]. However, the efficacy of m Health is understudied in many areas of public health, including smoking cessation. Few interventions with location information (eg, GPS) include formal spatial science components that may improve intervention delivery.

Amanda Luken, Michael R Desjardins, Meghan B Moran, Tamar Mendelson, Vadim Zipunnikov, Thomas R Kirchner, Felix Naughton, Carl Latkin, Johannes Thrul

JMIR Mhealth Uhealth 2023;11:e43990

Tracking Changes in Mobility Before and After the First SARS-CoV-2 Vaccination Using Global Positioning System Data in England and Wales (Virus Watch): Prospective Observational Community Cohort Study

Tracking Changes in Mobility Before and After the First SARS-CoV-2 Vaccination Using Global Positioning System Data in England and Wales (Virus Watch): Prospective Observational Community Cohort Study

GPS technology, on the other hand, uses satellites to allow users to passively submit longitude and latitude data globally, both indoors and outdoors [17]. In this analysis, we aimed to quantify the effect that the first SARS-Co V-2 vaccination had on travelling behavior, using mobile phone GPS data collected from study participants who consented and voluntarily downloaded the Arc GIS Tracker app onto their mobile phones.

Vincent Nguyen, Yunzhe Liu, Richard Mumford, Benjamin Flanagan, Parth Patel, Isobel Braithwaite, Madhumita Shrotri, Thomas Byrne, Sarah Beale, Anna Aryee, Wing Lam Erica Fong, Ellen Fragaszy, Cyril Geismar, Annalan M D Navaratnam, Pia Hardelid, Jana Kovar, Addy Pope, Tao Cheng, Andrew Hayward, Robert Aldridge, Virus Watch Collaborative

JMIR Public Health Surveill 2023;9:e38072

The Impact of the COVID-19 Pandemic on eHealth Use in the Daily Practice and Life of Dutch-Speaking General Practitioners in Belgium: Qualitative Study With Semistructured Interviews

The Impact of the COVID-19 Pandemic on eHealth Use in the Daily Practice and Life of Dutch-Speaking General Practitioners in Belgium: Qualitative Study With Semistructured Interviews

Although other studies have previously shown that the COVID-19 pandemic significantly impacted GPs’ use of e Health, little is known about the impact of the COVID-19 crisis on the daily use of e Health technologies among GPs in the Flemish region of Belgium. In our study, we investigated the following research questions: What has changed in the mind and practice of GPs toward the use of e Health as a result of the COVID-19 crisis? What other changes were experienced by GPs during this period, why, and how?

Jan Ismail Yagiz, Geert Goderis

JMIR Form Res 2022;6(11):e41847