PDF(Pubmed)
Abstract：
UNASSIGNED: Self-monitoring, one of the most important behaviors for successful weight loss, can be facilitated through mobile health applications (mHealth apps). Therefore, it is of interest to determine whether consistent users of these apps succeed in achieving their weight goals. This study used data from an mHealth app that enabled tracking of caloric intake, body weight, and physical activity and provided a caloric budget depending on weight goal. The primary objective was to evaluate adherence to caloric budget and body weight change among the most consistent (i.e., daily) trackers of caloric intake over a calendar year (n = 9372, 50% male).
UNASSIGNED: Gender-stratified linear mixed models were conducted to examine the effects of quarter of year (Q1-Q4 as season proxies) and body mass index (BMI) group (normal weight, overweight, obesity) on adherence to a caloric budget (kcal/day). Change in body weight was analyzed using a subset of users (n = 5808) who entered their weight in the app at least once per week, once per month, or once in Q1 and Q4. Physical activity entries were evaluated in exploratory analyses.
UNASSIGNED: Only users with obesity met their caloric budget in Q1. Deviation from budget increased for all groups from Q1 to Q2 (mean change[±standard error of the mean]: +23.7[±1.8] and +39.7[±2.2] kcal/day for female and male users, p < 0.001), was stable between Q2 and Q3, and fluctuated thereafter depending on gender and BMI, with greater deviation among males with overweight. Users with obesity with weight entries at least once per month lost the most weight (-6.1[±0.3] and -4.5[±0.3] kg for females and males, p < 0.001). Physical activity was highest in the summer months.
UNASSIGNED: Among consistent calorie trackers, adherence to a caloric budget and body weight vary by season, gender, and BMI. Self-monitoring of body weight in addition to calorie tracking may lead to improved weight loss outcomes.
UNASSIGNED: Gender-stratified linear mixed models were conducted to examine the effects of quarter of year (Q1-Q4 as season proxies) and body mass index (BMI) group (normal weight, overweight, obesity) on adherence to a caloric budget (kcal/day). Change in body weight was analyzed using a subset of users (n = 5808) who entered their weight in the app at least once per week, once per month, or once in Q1 and Q4. Physical activity entries were evaluated in exploratory analyses.
UNASSIGNED: Only users with obesity met their caloric budget in Q1. Deviation from budget increased for all groups from Q1 to Q2 (mean change[±standard error of the mean]: +23.7[±1.8] and +39.7[±2.2] kcal/day for female and male users, p < 0.001), was stable between Q2 and Q3, and fluctuated thereafter depending on gender and BMI, with greater deviation among males with overweight. Users with obesity with weight entries at least once per month lost the most weight (-6.1[±0.3] and -4.5[±0.3] kg for females and males, p < 0.001). Physical activity was highest in the summer months.
UNASSIGNED: Among consistent calorie trackers, adherence to a caloric budget and body weight vary by season, gender, and BMI. Self-monitoring of body weight in addition to calorie tracking may lead to improved weight loss outcomes.
摘要：
未经评估：自我监测，成功减肥最重要的行为之一，可以通过移动健康应用程序（mHealth应用程序）来促进。因此,我们感兴趣的是确定这些应用程序的一致用户是否成功实现了他们的体重目标。这项研究使用了mHealth应用程序的数据，该应用程序可以跟踪卡路里摄入量，体重,和体力活动，并根据体重目标提供热量预算。主要目标是评估最一致的热量预算和体重变化的依从性(即，每日）追踪一个日历年的热量摄入（n=9372，男性占50％）。
UNASSIGNED：进行了性别分层线性混合模型，以检查季度（Q1-Q4作为季节指标）和体重指数（BMI）组（正常体重，超重,肥胖)坚持卡路里预算(千卡/天)。使用至少每周一次在应用程序中输入体重的用户子集（n=5808）分析体重变化，每月一次,或在第一季度和第四季度一次。在探索性分析中评估了身体活动条目。
未经评估：只有肥胖的用户在第一季度达到了他们的热量预算。从第一季度到第二季度，所有组的预算偏差都增加了（平均变化[±平均值的标准误差]：女性和男性用户的+23.7[±1.8]和+39.7[±2.2]kcal/天，p<0.001)，在Q2和Q3之间稳定，此后根据性别和BMI波动，超重男性的偏差更大。每月至少有一次体重输入的肥胖使用者体重减轻最多（女性和男性为-6.1[±0.3]和-4.5[±0.3]kg，p<0.001)。夏季的体力活动最高。
未经评估：在一致的卡路里跟踪器中，坚持热量预算和体重因季节而异，性别,BMI。除了热量跟踪之外,体重的自我监测可以导致改善的体重减轻结果。
UNASSIGNED：进行了性别分层线性混合模型，以检查季度（Q1-Q4作为季节指标）和体重指数（BMI）组（正常体重，超重,肥胖)坚持卡路里预算(千卡/天)。使用至少每周一次在应用程序中输入体重的用户子集（n=5808）分析体重变化，每月一次,或在第一季度和第四季度一次。在探索性分析中评估了身体活动条目。
未经评估：只有肥胖的用户在第一季度达到了他们的热量预算。从第一季度到第二季度，所有组的预算偏差都增加了（平均变化[±平均值的标准误差]：女性和男性用户的+23.7[±1.8]和+39.7[±2.2]kcal/天，p<0.001)，在Q2和Q3之间稳定，此后根据性别和BMI波动，超重男性的偏差更大。每月至少有一次体重输入的肥胖使用者体重减轻最多（女性和男性为-6.1[±0.3]和-4.5[±0.3]kg，p<0.001)。夏季的体力活动最高。
未经评估：在一致的卡路里跟踪器中，坚持热量预算和体重因季节而异，性别,BMI。除了热量跟踪之外,体重的自我监测可以导致改善的体重减轻结果。
