University of Pittsburgh School of Nursing, Department of Health and Community Systems, Pittsburgh, Pennsylvania, USA.
Obesity (Silver Spring). 2011 Feb;19(2):338-44. doi: 10.1038/oby.2010.208. Epub 2010 Sep 16.
Technology may improve self-monitoring adherence and dietary changes in weight loss treatment. Our study aimed to investigate whether using a personal digital assistant (PDA) with dietary and exercise software, with and without a feedback message, compared to using a paper diary/record (PR), results in greater weight loss and improved self-monitoring adherence. Healthy adults (N = 210) with a mean BMI of 34.01 kg/m(2) were randomized to one of three self-monitoring approaches: PR (n = 72), PDA with self-monitoring software (n = 68), or PDA with self-monitoring software and daily feedback messages (PDA+FB, n = 70). All participants received standard behavioral treatment. Self-monitoring adherence and change in body weight, waist circumference, and diet were assessed at 6 months; retention was 91%. All participants had a significant weight loss (P < 0.01) but weight loss did not differ among groups. A higher proportion of PDA+FB participants (63%) achieved ≥ 5% weight loss in comparison to the PR group (46%) (P < 0.05) and PDA group (49%) (P = 0.09). Median percent self-monitoring adherence over the 6 months was higher in the PDA groups (PDA 80%; PDA+FB 90%) than in the PR group (55%) (P < 0.01). Waist circumference decreased more in the PDA groups than the PR group (P = 0.02). Similarly, the PDA groups reduced energy and saturated fat intake more than the PR group (P < 0.05). Self-monitoring adherence was greater in the PDA groups with the greatest weight change observed in the PDA+FB group.
技术可能会提高自我监测依从性和减肥治疗中的饮食变化。我们的研究旨在探讨与使用纸质日记/记录（PR）相比，使用带饮食和运动软件的个人数字助理（PDA），以及是否带有反馈信息，是否会导致更大的体重减轻和改善自我监测依从性。将 210 名平均 BMI 为 34.01kg/m(2)的健康成年人随机分为三种自我监测方法之一：PR（n = 72）、带自我监测软件的 PDA（n = 68）或带自我监测软件和每日反馈信息的 PDA（PDA+FB，n = 70）。所有参与者均接受标准行为治疗。在 6 个月时评估自我监测依从性和体重、腰围和饮食的变化；保留率为 91%。所有参与者体重均显著减轻（P < 0.01），但组间体重减轻无差异。与 PR 组（46%）和 PDA 组（49%）相比，PDA+FB 组（63%）有更高比例的参与者（P < 0.05）实现了 ≥ 5%的体重减轻。在 6 个月期间，PDA 组（PDA 组 80%；PDA+FB 组 90%）的自我监测依从性中位数高于 PR 组（55%）（P < 0.01）。PDA 组的腰围减少量大于 PR 组（P = 0.02）。同样，PDA 组比 PR 组减少了更多的能量和饱和脂肪摄入量（P < 0.05）。PDA 组的自我监测依从性更高，在 PDA+FB 组中观察到最大的体重变化。
