Dietary adherence to long-term controlled feeding in a calorie-restriction study in overweight men and women.
Dietary adherence to long-term controlled feeding in a calorie-restriction study in overweight men and women.
复制标题
DOI：
10.1177/0884533611405992
复制
发表时间：
2011-06
期刊：
影响因子：
--
通讯作者：
Ravussin E
中科院分区：
文献类型：
--
作者：
Moreira EA;Most M;Howard J;Ravussin E
临床饮食干预的成功取决于研究参与者坚持规定或提供的饮食的动机和意愿。这项研究的目的是评估参与者在6个月的减少能量摄入长期影响综合评估（CALERIE）期间对他们提供的饮食的依从性。研究人员评估了完成CALERIE试验第一阶段的46名男性和女性的饮食依从性。志愿者被随机分配到4个饮食干预组中的一组：对照组、热量限制组、热量限制伴运动组和低热量饮食组。参与者在基线的2周内以及在干预的前12周和最后2周作为门诊患者提供食物，他们完成了每日自我报告表以评估饮食依从性。数据表示为平均值±标准差或平均值的标准误差。确定皮尔森相关系数以检查指定能量水平与总能量摄入之间的关系。报告的偏离是吃非研究食物以及不吃研究食物。几乎没有偏差，并且当转换为每日平均卡路里时，这些不影响总能量（第-3至2周= 10.25 ± 4.82，第1-4周= 9.93 ± 12.52，第5-11周= 8.38 ± 7.42，第22-23周= 0.53 ± 3.97 kcal/d）。所有组（P = 0.001）、第-3至2周（r = 0.999）、第1-4周（r = 0.998）、第5-11周（r = 0.999）和第22-23周（r = 0.998）的指定能量水平与实际摄入量之间的关联性都很高。数据提供的证据表明，当所有的食物都提供时，当参与者积极性很高时，饮食依从性很好。
The success of clinical dietary interventions depends on the motivation and willingness of study participants to adhere to the prescribed or provided diet. The aim of this study was to assess participants’ adherence to their provided diet over the 6-month duration of the Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE). Investigators assessed the dietary adherence of 46 men and women who completed the first phase of the CALERIE trial. Volunteers were randomized to 1 of 4 dietary intervention groups: control, calorie restriction, calorie restriction with exercise, and low-calorie diet. Participants were provided with foods during 2 weeks of baseline and during the first 12 weeks and the last 2 weeks of the intervention as outpatients, and they completed a daily self-report form to assess diet adherence. The data are expressed as mean ± standard deviation or standard error of the mean. Pearson’s correlation coefficient was determined to examine the relationship between assigned energy levels and total energy intake. Deviations reported were for eating nonstudy foods as well as not eating study foods. There were few deviations, and when converted to mean calories per day these did not affect total energy (weeks −3 to 2 = 10.25 ± 4.82, weeks 1–4 = 9.93 ± 12.52, weeks 5–11 = 8.38 ± 7.42, weeks 22–23 = 0.53 ± 3.97 kcal/d). The associations between assigned energy level and actual intake were high for all groups (P = .001), weeks −3 to −2 (r = 0.999), weeks 1–4 (r = 0.998), weeks 5–11 (r = 0.999), and weeks 22–23 (r = 0.998). The data provide evidence that dietary adherence is good when all foods are provided and when participants are highly motivated.