An M-Health Intervention to Increase Activity Levels in Rural Veterans
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 139
- 试验地点
- 2
- 主要终点
- Self-Reported Ability to Participate
研究概览
简要总结
MapTrek is a mobile-phone-based web app that allows participants to take a virtual walk in interesting locations around the world while tracking their progress against the progress of other veterans on an interactive map. Steps are counted using a commercially available triaxial accelerometer (e.g. Fitbit), and users see their own updated progress overlaid on Google Maps, with Google Maps features (e.g. zooming, street view, etc.) available. The objective is to report activity levels in the virtual environment to veterans, thereby encouraging them first, to walk more every day, and second, to maintain these new increased levels of physical activity.
详细描述
All consented participants will be provided with a Fitbit and instructed to wear it all day for the next 9 weeks. This process should take approximately 15 to 45 minutes, depending on group assignment.
This, plus an exit survey and 3-month follow-up survey(given via text message or phone call, whichever the participant prefers), will be the extent of the participation in the control group.
Members of the intervention group will be instructed on how to use MapTrek, the virtual walking race. Data collected during the first week from the Fitbit will be used to compute baseline activity level. This baseline data will be used to place participants into an appropriate initial race group. Participants are placed into race groups with other individuals who are active at a similar level, so that groups will be competitive.
Each virtual walking race will begin on Monday and end on Sunday. Depending on each veteran's performance each week, group assignment may change. Participants will compete in 8 week-long races over the course of the study.
For each race, the participants will receive 2-4 text messages each day including a daily status report and a link to the current race. The participants will also periodically receive challenge text messages. If participants accept a challenge and meet it, they will be awarded bonus steps to help move them along the route in the race.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 100 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •At least 18 years old
- •Be comfortable speaking and reading in English
- •Have a BMI of at least 25
- •Have a smartphone with texting and internet capabilities
- •Be willing to download the Fitbit app onto their phone
- •Must be a VA patient
排除标准
- •Pregnancy
- •Active mental health conditions that prevent them from providing own consent
研究组 & 干预措施
MapTrek
Veterans in the intervention group receive a Fitbit and MapTrek, an interactive text-messaging platform. The only equipment needed is a Fitbit (we provide) and a smartphone (required prior to enrollment). Each week, veterans are assigned to a virtual walking route. Each day, they receive a text message with a link to the current route. The link will take them to a map where they can see their progress and the progress of others. A leaderboard provides information on how many steps each participant has taken. MapTrek also supports Street View on Google Maps, so veterans can explore what they would see if they were in that location. Throughout each race, patients will randomly receive challenge text messages. Completing a challenge awards bonus steps to propel their character along the map.
干预措施: MapTrek (Behavioral)
Fitbit Only
Veterans randomized to the control group will receive a Fitbit only. This will allow us to determine if changes in physical activity are due to MapTrek or simply by giving the veterans a Fitbit.
干预措施: Fitbit (Behavioral)
结局指标
主要结局
Self-Reported Ability to Participate
时间窗: 9 weeks
Ability (smartphone ownership, texting skill) to participate will be assessed via self-report from the participant.
Fitbit Usage
时间窗: 9 weeks
Amount of time (number of days, hours per day) spent wearing the Fitbit will be assessed.
Challenge Usage
时间窗: 9 weeks
Number of challenges participated in will be assessed.
次要结局
- Total Number of Steps per Day(9 weeks)
研究者
Philip Polgreen
Professor of Medicine
University of Iowa