Francis Shelby L, Simmering Jacob E, Polgreen Linnea A, Evans Nicholas J, Hosteng Katie R, Carr Lucas J, Cremer James F, Coe Sarah, Cavanaugh Joe E, Segre Alberto M, Polgreen Philip M
Departments of Internal Medicine and Health and Human Physiology, University of Iowa, Iowa City, IA, USA.
Department of Internal Medicine, University of Iowa, Iowa City, IA, USA.
Prev Med Rep. 2021 May 30;23:101426. doi: 10.1016/j.pmedr.2021.101426. eCollection 2021 Sep.
Physical activity is important for preventing obesity and diabetes, but most obese and pre-diabetic patients are not physically active. We developed a Fitbit-based game called MapTrek that promotes walking. We recruited obese and pre-diabetic patients. Half were randomly assigned to the control group and given a Fitbit alone. The others were given a Fitbit plus MapTrek. The MapTrek group participated in 6 months of weekly virtual races. Each week, participants were placed in a race with 9 others who achieved a similar number of steps in the previous week's race. Participants moved along the virtual route by the steps recorded on their Fitbit and received daily walking challenges via text message. Text messages also had links to the race map and leaderboard. We used a Bayesian mixed effects model to analyze the number of steps taken during the intervention. A total of 192 (89%) participants in the control group and 196 (91%) in the MapTrek group were included in the analyses. MapTrek significantly increased step counts when it began: MapTrek participants walked almost 1,700 steps more than the control group on the first day of the intervention. We estimate that there is a 97% probability that the effect of MapTrek is at least 1,000 additional steps per day throughout the course of the 6-month intervention and that MapTrek participants would have walked an additional 81 miles, on average, before the effect ended. Our MapTrek intervention led to significant extra walking by the MapTrek participants.
体育活动对于预防肥胖和糖尿病很重要，但大多数肥胖和糖尿病前期患者都缺乏体育锻炼。我们开发了一款名为MapTrek的基于Fitbit的游戏来促进步行。我们招募了肥胖和糖尿病前期患者。其中一半被随机分配到对照组，只给予一个Fitbit。其余的人则得到一个Fitbit加MapTrek。MapTrek组参加了为期6个月的每周虚拟比赛。每周，参与者会与其他9名在前一周比赛中步数相近的人进行一场比赛。参与者根据他们Fitbit上记录的步数沿着虚拟路线移动，并通过短信接收每日步行挑战。短信中还有比赛地图和排行榜的链接。我们使用贝叶斯混合效应模型来分析干预期间的步数。对照组共有192名（89%）参与者，MapTrek组有196名（91%）参与者被纳入分析。MapTrek开始时显著增加了步数：在干预的第一天，MapTrek组的参与者比对照组多走了近1700步。我们估计，在为期6个月的干预过程中，MapTrek的效果有97%的概率是每天至少额外增加1000步，并且在效果结束前，MapTrek组的参与者平均会多走81英里。我们的MapTrek干预使MapTrek组的参与者显著增加了步行量。
