B-MOBILE--a smartphone-based intervention to reduce sedentary time in overweight/obese individuals: a within-subjects experimental trial.
B-MOBILE--a smartphone-based intervention to reduce sedentary time in overweight/obese individuals: a within-subjects experimental trial.
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B-Mobile-一项基于智能手机的干预措施，以减少超重/肥胖个体的久坐时间：受试者内试验。
DOI：
10.1371/journal.pone.0100821
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Wing RR
中科院分区：
文献类型：
--
作者：
Bond DS;Thomas JG;Raynor HA;Moon J;Sieling J;Trautvetter J;Leblond T;Wing RR
久坐时间过长（SED）与肥胖和其他不良健康结果有关。然而，很少有减少久坐的干预措施存在，没有人利用智能手机来自动化行为策略来减少SED。我们测试了一种基于智能手机的干预措施，以监测和减少超重/肥胖个体的SED，并比较了3种促进体力活动（PA）休息和提供SED反馈的方法。参与者[N = 30;年龄= 47.5（13.5）岁; 83%为女性;体重指数（BMI）= 36.2（7.5）kg/m2]佩戴SenseWear迷你臂带（SWA），以客观测量基线时的SED 7天。 然后，以平衡顺序向参与者提供3种基于智能手机的PA中断条件：（1）30分钟SED后中断3分钟;（2）60分钟SED后中断6分钟;（3）120分钟SED后中断12分钟。参与者遵循每种条件7天，并始终佩戴SWA。所有PA中断条件均导致SED显著降低，光照（LPA）和中度至剧烈PA（MVPA）显著增加（p<0.005）。在3、6和12 min条件下，基线时的平均% SED（72.2%）分别降低了5.9%、5.6%和3.3% [即平均值（95% CI）为−47.2（−66.3，−28.2）、−44.5（−65.2，−23.8）和−26.2（−40.7，−11.6）min/d]。相反，% LPA从22.8%增加至26.7%、26.7%和24.7% [即增加31.0（15.8、46.2）、31.0（13.6、48.4）和15.3（3.9，26.8）min/d]，% MVPA从5.0%增加到7.0%、6.7%和6.3%（即在3-、6-和12-min条件下分别增加16.2（8.5，24.0）、13.5（6.3，20.6）和10.8（4.2，17.5）min/d]。计划的成对比较显示，3分钟条件在降低SED和增加LPA方面上级12分钟条件（p<0.05）。基于智能手机的干预显著降低了SED。减少频繁的短暂活动休息可能是减少超重/肥胖个体的SED和增加PA的最有效方法。未来的调查应确定这些SED减少是否可以长期保持。 ClinicalTrials.gov www.example.com
Excessive sedentary time (SED) has been linked to obesity and other adverse health outcomes. However, few sedentary-reducing interventions exist and none have utilized smartphones to automate behavioral strategies to decrease SED. We tested a smartphone-based intervention to monitor and decrease SED in overweight/obese individuals, and compared 3 approaches to prompting physical activity (PA) breaks and delivering feedback on SED. Participants [N = 30; Age = 47.5(13.5) years; 83% female; Body Mass Index (BMI) = 36.2(7.5) kg/m2] wore the SenseWear Mini Armband (SWA) to objectively measure SED for 7 days at baseline. Participants were then presented with 3 smartphone-based PA break conditions in counterbalanced order: (1) 3-min break after 30 SED min; (2) 6-min break after 60 SED min; and (3) 12-min break after 120 SED min. Participants followed each condition for 7 days and wore the SWA throughout. All PA break conditions yielded significant decreases in SED and increases in light (LPA) and moderate-to-vigorous PA (MVPA) (p<0.005). Average % SED at baseline (72.2%) decreased by 5.9%, 5.6%, and 3.3% [i.e. by mean (95% CI) −47.2(−66.3, −28.2), −44.5(−65.2, −23.8), and −26.2(−40.7, −11.6) min/d] in the 3-, 6-, and 12-min conditions, respectively. Conversely, % LPA increased from 22.8% to 26.7%, 26.7%, and 24.7% [i.e. by 31.0(15.8, 46.2), 31.0(13.6, 48.4), and 15.3(3.9, 26.8) min/d], and % MVPA increased from 5.0% to 7.0%, 6.7%, and 6.3% (i.e. by 16.2(8.5, 24.0), 13.5(6.3, 20.6), and 10.8(4.2, 17.5) min/d] in the 3-, 6-, and 12-min conditions, respectively. Planned pairwise comparisons revealed the 3-min condition was superior to the 12-min condition in decreasing SED and increasing LPA (p<0.05). The smartphone-based intervention significantly reduced SED. Prompting frequent short activity breaks may be the most effective way to decrease SED and increase PA in overweight/obese individuals. Future investigations should determine whether these SED reductions can be maintained long-term. ClinicalTrials.gov NCT01688804
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影响因子：
2.9
作者：
Carr, Lucas J.;Karvinen, Kristina;Cangelosi, Kayla
通讯作者：
Cangelosi, Kayla
影响因子：
16.2
作者：
Dunstan DW;Kingwell BA;Larsen R;Healy GN;Cerin E;Hamilton MT;Shaw JE;Bertovic DA;Zimmet PZ;Salmon J;Owen N
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Owen N
影响因子：
7.1
作者：
Matthews, Charles E.;George, Stephanie M.;Schatzkin, Arthur
通讯作者：
Schatzkin, Arthur
影响因子：
5.5
作者：
Burke, Lora E.;Styn, Mindi A.;Ewing, Linda J.
通讯作者：
Ewing, Linda J.
影响因子：
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作者：
Otten, Jennifer J.;Jones, Katherine E.;Harvey-Berino, Jean
通讯作者：
Harvey-Berino, Jean