Department of Nutrition and Dietetics, Portsmouth Hospitals, Portsmouth, UK.
J Hum Nutr Diet. 2011 Feb;24(1):32-8. doi: 10.1111/j.1365-277X.2010.01123.x. Epub 2010 Nov 29.
Professional face-to-face contact is known to be beneficial in effective weight management, but costly, in supporting weight maintenance. Within the UK, studies have examined using the Internet to achieve weight loss; however, there is a need to evaluate the use of dietetic intervention via e-mail to support the maintenance of weight loss in a National Health Service (NHS) setting. The present study aimed to assess the effects of dietetic support through e-mail on weight loss maintenance on individuals who were successful in weight loss.
Fifty-five patients, who had lost ≥5% body weight, were assigned to either an intervention group (weekly e-mail messages and monthly personal e-mail message with reporting of weight, n = 28) or a control group (n = 27). The level of weight maintenance, plus dietary changes and the ability to maintain a level of activity, were recorded after 6 months.
At 6 months, the e-mail group maintained an average weight loss of 10%, which was significantly (P = 0.05) greater than the mean percentage weight loss maintained by the control group (7.3%). The control group regained weight at a statistically significant greater velocity (P = 0.02) than the intervention group. There were correlations between the amount of fruits and vegetables (P = 0.07) eaten and exercise episodes (P = 0.01) against weight change in maintenance.
The present study showed that dietetic support using e-mail can be used effectively in reducing weight gain velocity and assisting in the maintenance of weight loss. It is a system that can be used in the UK NHS to reach many people.
专业的面对面接触被认为在有效的体重管理中是有益的，但在支持体重维持方面成本较高。在英国，已经有研究检查了使用互联网来实现减肥的效果；然而，需要评估通过电子邮件进行饮食干预以支持在国民保健制度（NHS）环境中维持减肥的效果。本研究旨在评估通过电子邮件对减肥成功的个体进行饮食支持对维持体重的效果。
将 55 名体重减轻≥5%的患者分为干预组（每周通过电子邮件发送消息，每月通过电子邮件发送个人消息并报告体重，n=28）或对照组（n=27）。在 6 个月后记录体重维持水平，以及饮食变化和保持活动水平的能力。
在 6 个月时，电子邮件组维持了平均 10%的体重减轻，与对照组（7.3%）相比，这一数字显著（P=0.05）更大。对照组的体重恢复速度明显（P=0.02）高于干预组。在维持期间，水果和蔬菜的摄入量（P=0.07）与运动次数（P=0.01）与体重变化之间存在相关性。
本研究表明，使用电子邮件进行饮食支持可以有效地减少体重增加速度，并有助于维持体重减轻。这是一种可以在英国 NHS 中使用的系统，可以覆盖很多人。
