Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Cancer Epidemiol Biomarkers Prev. 2020 Apr;29(4):761-768. doi: 10.1158/1055-9965.EPI-19-0906. Epub 2020 Feb 17.
Regular physical activity (PA) is associated with a lower risk of several types of cancers. However, two-thirds of overweight/obese adults are not sufficiently active; this, in combination with the unfavorable effect of excess body weight, puts them at a greater risk for cancer. One reason that these individuals do not engage in enough PA may be their lack of motivation to change their current behavior due to the perception of putting in effort for possible future gain without obvious short-term benefits. There is a need for innovative ways to help individuals recognize the immediate health benefits of PA and thus increase their motivation.
This pilot intervention tested a PA education module that included a one-on-one counseling session highlighting the acute effects of PA on glucose patterns, followed by a 10-day self-monitoring period with a continuous glucose monitor (CGM) and a Fitbit tracker. Participants rated the acceptability of the education module on a 5-point Likert scale and completed surveys assessing stages of change for motivational readiness.
Nineteen overweight/obese adults (84% female) completed the study. Participants gave high ratings to the counseling session for improving their PA-related knowledge (mean = 4.22), increasing motivation (mean = 4.29), and providing personally relevant information (mean = 4.35). The summary acceptability scores for the self-monitoring period were 4.46 for CGM and 4.51 for Fitbit. Participants reported a significant decrease in the precontemplation stage and an increase in the action stage ( < 0.05).
CGM is a feasible tool for PA interventions.
Information from CGM could be used as biological-based feedback to motivate PA.
有规律的身体活动（PA）与降低多种癌症风险相关。然而，三分之二的超重/肥胖成年人活动量不足；这与超重对身体的不良影响相结合，使他们面临更大的癌症风险。这些人没有进行足够的身体活动的一个原因可能是，由于没有明显的短期益处，他们认为投入精力可能获得未来的收益，但目前却没有动力去改变他们的现状。需要创新的方法来帮助个人认识到 PA 的即时健康益处，从而提高他们的积极性。
该试点干预试验测试了一个 PA 教育模块，包括一次一对一的咨询会议，强调 PA 对葡萄糖模式的急性影响，随后是 10 天的自我监测期，使用连续血糖监测仪（CGM）和 Fitbit 跟踪器。参与者对教育模块的可接受性进行了 5 分制的李克特量表评分，并完成了评估动机准备阶段变化的调查。
19 名超重/肥胖成年人（84%为女性）完成了研究。参与者对咨询会议在提高 PA 相关知识（平均得分为 4.22）、提高动力（平均得分为 4.29）和提供个人相关信息（平均得分为 4.35）方面给予了高度评价。CGM 的自我监测期的综合可接受性评分为 4.46，Fitbit 的评分为 4.51。参与者报告说，前沉思阶段显著下降，行动阶段显著增加（<0.05）。
CGM 是 PA 干预的一种可行工具。
CGM 的信息可作为生物反馈来激励 PA。
