整合加速度计的干预措施对身体活动和体重减轻的影响：一项系统综述。
The Impact of Interventions that Integrate Accelerometers on Physical Activity and Weight Loss: A Systematic Review.
作者信息
Goode Adam P, Hall Katherine S, Batch Bryan C, Huffman Kim M, Hastings S Nicole, Allen Kelli D, Shaw Ryan J, Kanach Frances A, McDuffie Jennifer R, Kosinski Andrzej S, Williams John W, Gierisch Jennifer M
机构信息
Duke University School of Medicine, Box 104002 DUMC, Durham, NC, 27708, USA.
Durham Veterans Affairs Medical Center, Durham, NC, USA.
出版信息
Ann Behav Med. 2017 Feb;51(1):79-93. doi: 10.1007/s12160-016-9829-1.
BACKGROUND
Regular physical activity is important for improving and maintaining health, but sedentary behavior is difficult to change. Providing objective, real-time feedback on physical activity with wearable motion-sensing technologies (activity monitors) may be a promising, scalable strategy to increase physical activity or decrease weight.
PURPOSE
We synthesized the literature on the use of wearable activity monitors for improving physical activity and weight-related outcomes and evaluated moderating factors that may have an impact on effectiveness.
METHODS
We searched five databases from January 2000 to January 2015 for peer-reviewed, English-language randomized controlled trials among adults. Random-effects models were used to produce standardized mean differences (SMDs) for physical activity outcomes and mean differences (MDs) for weight outcomes. Heterogeneity was measured with I .
RESULTS
Fourteen trials (2972 total participants) met eligibility criteria; accelerometers were used in all trials. Twelve trials examined accelerometer interventions for increasing physical activity. A small significant effect was found for increasing physical activity (SMD 0.26; 95 % CI 0.04 to 0.49; I = 64.7 %). Intervention duration was the only moderator found to significantly explain high heterogeneity for physical activity. Eleven trials examined the effects of accelerometer interventions on weight. Pooled estimates showed a small significant effect for weight loss (MD -1.65 kg; 95 % CI -3.03 to -0.28; I = 81 %), and no moderators were significant.
CONCLUSIONS
Accelerometers demonstrated small positive effects on physical activity and weight loss. The small sample sizes with moderate to high heterogeneity in the current studies limit the conclusions that may be drawn. Future studies should focus on how best to integrate accelerometers with other strategies to increase physical activity and weight loss.
背景
规律的体育活动对于改善和维持健康很重要，但久坐行为难以改变。使用可穿戴运动传感技术（活动监测器）提供关于体育活动的客观、实时反馈，可能是增加体育活动或减轻体重的一种有前景、可扩展的策略。
目的
我们综合了关于使用可穿戴活动监测器改善体育活动及体重相关结果的文献，并评估了可能影响有效性的调节因素。
方法
我们检索了2000年1月至2015年1月期间的五个数据库，以查找针对成年人的经同行评审的英文随机对照试验。随机效应模型用于得出体育活动结果的标准化均数差（SMD）和体重结果的均数差（MD）。异质性用I²测量。
结果
14项试验（共2972名参与者）符合纳入标准；所有试验均使用了加速度计。12项试验研究了加速度计干预对增加体育活动的作用。发现增加体育活动有小的显著效果（SMD 0.26；95%CI 0.04至0.49；I² = 64.7%）。干预持续时间是唯一被发现能显著解释体育活动高异质性的调节因素。11项试验研究了加速度计干预对体重的影响。汇总估计显示减肥有小的显著效果（MD -1.65 kg；95%CI -3.03至-0.28；I² = 81%），且没有调节因素具有显著性。
结论
加速度计对体育活动和减肥显示出小的积极作用。当前研究中样本量小且异质性为中度到高度限制了所能得出的结论。未来研究应关注如何最好地将加速度计与其他策略相结合以增加体育活动和减肥。
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