Study: NCT04784585

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Online Behavioral Obesity Treatment
Description: The online BOT consists of: (a) 12 weekly multimedia lessons for training in behavioral weight loss skills; (b) online tools for self-monitoring weight, diet, and physical activity; and (c) weekly automated text-based feedback on progress to date. Participants are given a goal of losing 1-2lbs per week to achieve a total weight loss of ≥10% of initial body weight. Participants are prescribed a calorie goal of 1200-1800 kcal/day tailored on initial weight. Participants are given guidelines to follow a lowfat or Mediterranean diet to meet the prescribed calorie goal. Participants are given a physical activity goal tailored on initial activity level that gradually increases to 200 min/wk of activity, emphasizing brisk walking as the primary form of activity. They also receive a primer in self-monitoring weight, diet, and physical activity. Participants are instructed to self-monitor and follow the prescribed diet for the 6-month study period.

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Online Behavioral Obesity Treatment
Description: The online BOT consists of: (a) 12 weekly multimedia lessons for training in behavioral weight loss skills; (b) online tools for self-monitoring weight, diet, and physical activity; and (c) weekly automated text-based feedback on progress to date. Participants are given a goal of losing 1-2lbs per week to achieve a total weight loss of ≥10% of initial body weight. Participants are prescribed a calorie goal of 1200-1800 kcal/day tailored on initial weight. Participants are given guidelines to follow a lowfat or Mediterranean diet to meet the prescribed calorie goal. Participants are given a physical activity goal tailored on initial activity level that gradually increases to 200 min/wk of activity, emphasizing brisk walking as the primary form of activity. They also receive a primer in self-monitoring weight, diet, and physical activity. Participants are instructed to self-monitor and follow the prescribed diet for the 6-month study period.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Online Behavioral Obesity Treatment
Description: The online BOT consists of: (a) 12 weekly multimedia lessons for training in behavioral weight loss skills; (b) online tools for self-monitoring weight, diet, and physical activity; and (c) weekly automated text-based feedback on progress to date. Participants are given a goal of losing 1-2lbs per week to achieve a total weight loss of ≥10% of initial body weight. Participants are prescribed a calorie goal of 1200-1800 kcal/day tailored on initial weight. Participants are given guidelines to follow a lowfat or Mediterranean diet to meet the prescribed calorie goal. Participants are given a physical activity goal tailored on initial activity level that gradually increases to 200 min/wk of activity, emphasizing brisk walking as the primary form of activity. They also receive a primer in self-monitoring weight, diet, and physical activity. Participants are instructed to self-monitor and follow the prescribed diet for the 6-month study period.

Intervention type: BEHAVIORAL
Group type: SHAM_COMPARATOR
Intervention: Online Behavioral Obesity Treatment
Description: The online BOT consists of: (a) 12 weekly multimedia lessons for training in behavioral weight loss skills; (b) online tools for self-monitoring weight, diet, and physical activity; and (c) weekly automated text-based feedback on progress to date. Participants are given a goal of losing 1-2lbs per week to achieve a total weight loss of ≥10% of initial body weight. Participants are prescribed a calorie goal of 1200-1800 kcal/day tailored on initial weight. Participants are given guidelines to follow a lowfat or Mediterranean diet to meet the prescribed calorie goal. Participants are given a physical activity goal tailored on initial activity level that gradually increases to 200 min/wk of activity, emphasizing brisk walking as the primary form of activity. They also receive a primer in self-monitoring weight, diet, and physical activity. Participants are instructed to self-monitor and follow the prescribed diet for the 6-month study period.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Online Behavioral Obesity Treatment
Description: The online BOT consists of: (a) 12 weekly multimedia lessons for training in behavioral weight loss skills; (b) online tools for self-monitoring weight, diet, and physical activity; and (c) weekly automated text-based feedback on progress to date. Participants are given a goal of losing 1-2lbs per week to achieve a total weight loss of ≥10% of initial body weight. Participants are prescribed a calorie goal of 1200-1800 kcal/day tailored on initial weight. Participants are given guidelines to follow a lowfat or Mediterranean diet to meet the prescribed calorie goal. Participants are given a physical activity goal tailored on initial activity level that gradually increases to 200 min/wk of activity, emphasizing brisk walking as the primary form of activity. They also receive a primer in self-monitoring weight, diet, and physical activity. Participants are instructed to self-monitor and follow the prescribed diet for the 6-month study period.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Online Behavioral Obesity Treatment
Description: The online BOT consists of: (a) 12 weekly multimedia lessons for training in behavioral weight loss skills; (b) online tools for self-monitoring weight, diet, and physical activity; and (c) weekly automated text-based feedback on progress to date. Participants are given a goal of losing 1-2lbs per week to achieve a total weight loss of ≥10% of initial body weight. Participants are prescribed a calorie goal of 1200-1800 kcal/day tailored on initial weight. Participants are given guidelines to follow a lowfat or Mediterranean diet to meet the prescribed calorie goal. Participants are given a physical activity goal tailored on initial activity level that gradually increases to 200 min/wk of activity, emphasizing brisk walking as the primary form of activity. They also receive a primer in self-monitoring weight, diet, and physical activity. Participants are instructed to self-monitor and follow the prescribed diet for the 6-month study period.