Larsen Lisbeth Hoejkjaer, Lauritzen Maja Hedegaard, Sinkjaer Mikkel, Kjaer Troels W
Department of Neurology, Zealand University Hospital, Roskilde, Denmark.
Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
JMIR Cardio. 2022 Mar 15;6(1):e31501. doi: 10.2196/31501.
Modern lifestyle is associated with a high prevalence of physical inactivity.
This study aims to investigate the effect of a wearable tracking device on cardiorespiratory fitness among inactive adults and to explore if personal characteristics and health outcomes can predict adoption of the device.
In total, 62 inactive adults were recruited for this study. A control period (4 weeks) was followed by an intervention period (8 weeks) where participants were instructed to register and follow their physical activity (PA) behavior on a wrist-worn tracking device. Data collected included estimated cardiorespiratory fitness, body composition, blood pressure, perceived stress levels, and self-reported adoption of using the tracking device.
In total, 50 participants completed the study (mean age 48, SD 13 years, 84% women). Relative to the control period, participants increased cardiorespiratory fitness by 1.52 mL/kg/minute (95% CI 0.82-2.22; P<.001), self-reported PA by 140 minutes per week (95% CI 93.3-187.1; P<.001), daily step count by 982 (95% CI 492-1471; P<.001), and participants' fat percentage decreased by 0.48% (95% CI -0.84 to -0.13; P=.009). No difference was observed in blood pressure (systolic: 95% CI -2.16 to 3.57, P=.63; diastolic: 95% CI -0.70 to 2.55; P=.27) or perceived stress (95% CI -0.86 to 1.78; P=.49). No associations were found between adoption of the wearable tracking device and age, gender, personality, or education. However, participants with a low perceived stress at baseline were more likely to rate the use of a wearable tracking device highly motivating.
Tracking health behavior using a wearable tracking device increases PA resulting in an improved cardiorespiratory fitness among inactive adults.
现代生活方式与身体活动不足的高患病率相关。
本研究旨在调查可穿戴追踪设备对缺乏运动的成年人心肺适能的影响，并探讨个人特征和健康结果是否能够预测该设备的采用情况。
本研究共招募了62名缺乏运动的成年人。先有一个为期4周的对照期，之后是为期8周的干预期，在此期间，参与者被要求在腕戴式追踪设备上记录并跟踪自己的身体活动（PA）行为。收集的数据包括估计的心肺适能、身体成分、血压、感知压力水平以及自我报告的追踪设备使用情况。
共有50名参与者完成了研究（平均年龄48岁，标准差13岁，84%为女性）。与对照期相比，参与者的心肺适能提高了1.52毫升/千克/分钟（95%置信区间0.82 - 2.22；P <.001），自我报告的每周身体活动增加了140分钟（95%置信区间93.3 - 187.1；P <.001），每日步数增加了982步（95%置信区间492 - 1471；P <.001），参与者的体脂百分比下降了0.48%（95%置信区间 - 0.84至 - 0.13；P =.009）。血压（收缩压：95%置信区间 - 2.16至3.57，P =.63；舒张压：95%置信区间 - 0.70至2.55；P =.27）或感知压力（95%置信区间 - 0.86至1.78；P =.49）未观察到差异。在可穿戴追踪设备的采用与年龄、性别、性格或教育程度之间未发现关联。然而，基线时感知压力较低的参与者更有可能认为使用可穿戴追踪设备具有高度激励性。
使用可穿戴追踪设备追踪健康行为可增加身体活动，从而改善缺乏运动的成年人的心肺适能。
