Gatzemeier Jennifer, Wilkinson Laura L, Price Menna J, Lee Michelle D
School of Psychology, Swansea University, SA2 8PPSwansea, UK.
Public Health Nutr. 2024 Mar 20;27(1):e107. doi: 10.1017/S1368980024000697.
Individuals often use self-directed strategies to manage intake of tempting foods, but what these strategies are and whether they are effective is not well understood. This study assessed the frequency of use and subjective effectiveness of self-directed strategies in relation to BMI and snack intake.
A cross-sectional and prospective study with three time points (T1: baseline, T2: 3 months and T3: 3 years). At T1, demographics, frequency of use and subjective effectiveness of forty-one identified strategies were assessed. At T2 and T3, current weight was reported, and at T2 frequency of snack intake was also recorded.
Online study in the UK.
Data from 368 participants (M = 34·41 years; M = 25·06 kg/m) were used for analysis at T1, = 170 (46·20 % of the total sample) at T2 and = 51 (13·59 %) at T3.
Two strategy factors were identified via principal axis factoring: (1) diet, exercise, reduction of temptations, and cognitive strategies, and (2) planning, preparation and eating style. For strategy 1, frequency of use, but not subjective effectiveness, was positively related to BMI at T1. Subjective effectiveness predicted an increase in BMI from T1 and T2 to T3. No relationship to snack intake was found. For strategy 2, frequency of use was negatively related to BMI at T1. Neither frequency of use nor subjective effectiveness were related to changes in BMI over time, but subjective effectiveness was negatively correlated with unhealthy snack intake.
Self-directed strategies to reduce the intake of tempting foods are not consistently related to BMI or snack intake.
个体常采用自我导向策略来控制对诱人食物的摄入量,但这些策略具体是什么以及是否有效尚不清楚。本研究评估了自我导向策略的使用频率及其与体重指数(BMI)和零食摄入量相关的主观有效性。
一项具有三个时间点(T1:基线,T2:3个月,T3:3年)的横断面和前瞻性研究。在T1时,评估人口统计学特征、41种已识别策略的使用频率和主观有效性。在T2和T3时,报告当前体重,并且在T2时还记录零食摄入频率。
英国的在线研究。
来自368名参与者的数据(M = 34.41岁;M = 25.06 kg/m²)用于T1时的分析,T2时有170名(占总样本的46.20%),T3时有51名(占13.59%)。
通过主轴因子分析确定了两个策略因素:(1)饮食、运动、减少诱惑和认知策略,以及(2)计划、准备和饮食方式。对于策略1,在T1时,使用频率而非主观有效性与BMI呈正相关。主观有效性预测了从T1到T2再到T3时BMI的增加。未发现与零食摄入量有关。对于策略2,在T1时,使用频率与BMI呈负相关。使用频率和主观有效性均与BMI随时间的变化无关,但主观有效性与不健康零食摄入量呈负相关。
减少对诱人食物摄入量的自我导向策略与BMI或零食摄入量并非始终相关。