2型糖尿病在职成年人的新冠疫情封锁限制措施与长期活动水平的关联：队列研究
The Associations of COVID-19 Lockdown Restrictions With Longer-Term Activity Levels of Working Adults With Type 2 Diabetes: Cohort Study.
作者信息
Brakenridge Christian John, Salim Agus, Healy Genevieve Nissa, Grigg Ruth, Carver Alison, Rickards Kym, Owen Neville, Dunstan David Wayne
机构信息
Baker Heart and Diabetes Institute, Melbourne, Australia.
Mary Mackillop Institute for Health Research, Australian Catholic University, Melbourne, Australia.
出版信息
JMIR Diabetes. 2022 May 18;7(2):e36181. doi: 10.2196/36181.
BACKGROUND
Lockdown restrictions reduce COVID-19 community transmission; however, they may pose challenges for noncommunicable disease management. A 112-day hard lockdown in Victoria, Australia (commencing March 23, 2020) coincided with an intervention trial of reducing and breaking up sitting time in desk workers with type 2 diabetes who were using a provided consumer-grade activity tracker (Fitbit).
OBJECTIVE
This study aims to compare continuously recorded activity levels preceding and during COVID-19 lockdown restrictions among working adults with type 2 diabetes participating in a sitting less and moving more intervention.
METHODS
A total of 11 participants (n=8 male; mean age 52.8, SD 5 years) in Melbourne, Australia had Fitbit activity tracked before (mean 122.7, SD 47.9 days) and during (mean 99.7, SD 62.5 days) citywide COVID-19 lockdown restrictions. Regression models compared device (Fitbit Inspire HR)-derived activity (steps; metabolic equivalent tasks [METs]; mean time in sedentary, lightly, fairly, and very active minutes; and usual bout durations) during restrictions to prerestrictions. Changes in activity were statistically significant when estimates (Δ%) did not intercept zero.
RESULTS
Overall, there was a decrease in mean steps (-1584 steps/day; Δ% -9%, 95% CI -11% to -7%); METs (-83 METs/day; Δ% -5%, 95% CI -6% to -5%); and lightly active (Δ% -4%, 95% CI -8% to -1%), fairly active (Δ% -8%, 95% CI -21% to -15%), and very active (Δ% -8%, 95% CI -11% to -5%) intensity minutes per day, and increases in mean sedentary minutes per day (51 mins/day; Δ% 3%, 95% CI 1%-6%). Only very active (+5.1 mins) and sedentary (+4.3 mins) bout durations changed significantly.
CONCLUSIONS
In a convenience sample of adults with type 2 diabetes, COVID-19 lockdown restrictions were associated with decreases in overall activity levels and increases in very active and sedentary bout durations. A Fitbit monitor provided meaningful continuous long-term data in this context.
TRIAL REGISTRATION
Australian New Zealand Clinical Trials Registry ACTRN12618001159246; https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12618001159246.
背景
封锁限制措施可减少新冠病毒在社区的传播；然而，这些措施可能给非传染性疾病的管理带来挑战。澳大利亚维多利亚州实施了为期112天的严格封锁（从2020年3月23日开始），与此同时，针对使用提供的消费级活动追踪器（Fitbit）的2型糖尿病办公室职员开展了一项减少久坐时间和增加活动量的干预试验。
目的
本研究旨在比较参与减少久坐和增加活动量干预的2型糖尿病在职成年人在新冠疫情封锁限制措施实施之前和期间连续记录的活动水平。
方法
澳大利亚墨尔本共有11名参与者（8名男性；平均年龄52.8岁，标准差5岁），在全市范围的新冠疫情封锁限制措施实施之前（平均122.7天，标准差47.9天）和期间（平均99.7天，标准差62.5天）对其Fitbit活动进行了追踪。回归模型比较了限制措施期间与限制措施实施之前由设备（Fitbit Inspire HR）得出的活动数据（步数；代谢当量任务[METs]；久坐、轻度、中度和剧烈活动分钟数的平均时间；以及通常的运动时长）。当估计值（Δ%）不与零相交时，活动变化具有统计学意义。
结果
总体而言，平均步数减少（-1584步/天；Δ% -9%，95%置信区间-11%至-7%）；METs减少（-83 METs/天；Δ% -5%，95%置信区间-6%至-5%）；轻度活动（Δ% -4%，95%置信区间-8%至-1%）、中度活动（Δ% -8%，95%置信区间-21%至-15%）和剧烈活动（Δ% -8%，95%置信区间-11%至-5%）强度的分钟数每天减少，而每天久坐分钟数的平均值增加（51分钟/天；Δ% 3%，95%置信区间1%至6%）。只有剧烈活动（+5.1分钟）和久坐（+4.3分钟）的运动时长有显著变化。
结论
在一个2型糖尿病成年人的便利样本中，新冠疫情封锁限制措施与总体活动水平下降以及剧烈活动和久坐运动时长增加有关。在此背景下，Fitbit监测器提供了有意义的连续长期数据。
试验注册
澳大利亚新西兰临床试验注册中心ACTRN12--618001159246；https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12618001159246 。
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