UMass Chan PRC 生活方式改变实施研究网络 (LCIRN)

Participants randomized to the digital LCI arm will participate in a 4-month digital lifestyle intervention consisting of content modules about physical activity, nutrition, and GLP-1 support, nutrition and physical activity tracking, goal-setting, access to a health coach. They will receive a Fitbit and the same resources as the Standard of Care arm.

Participants will be enrolled for a 4-month program, in which they will use the Noom app to self-monitor their dietary intake/physical activity, be provided with coaching feedback throughout, and access educational module. Modules include behavior change specific to GLP-1, i.e. higher protein intake than what is prescribed in Noom Weight, Common challenges while taking GLP-1 medications, and weight loss medications and what to expect while taking them. They will also have access to the Muscle Defense program, which provides education on resistance training exercises to prevent muscle loss.

Participants in the standard of care arm will receive physical activity and nutrition resources, including those endorsed by the CDC and local resources within UMass Memorial Health and the surrounding communities, as well as Fitbit device. Upon completion of the 8-month study measures, participants will have the opportunity to participate in the 4-month digital LCI program, free of cost.

Minutes of moderate/vigorous PA per day (over 7 days) assessed via Fitbits on days the participant has sufficient wear time, defined as >10 hours of heart rate data (accumulated of 60-second bouts).

Healthy Eating Index will be assessed via two 24-hour dietary recalls at each timepoint. The Healthy Eating Index is scored on a scale 0-100, with higher scores indicating better diet quality and alignment with the Dietary Guidelines for Americans.

Objective metrics of mean step counts (steps/day), light physical activity (minutes/day), sedentary time (hours/day) over 7 days assessed via Fitbit Inspire using Fitbit algorithms and obtained through Fitabase.

Proportion of daily intake values for each category will be assessed using two 24-hour dietary recalls.

Lean body mass will be assessed using a seca mBCA 554 bioelectrical impedance scale. The scale will obtain the results of the patient's body composition (% muscle mass, % water, % body fat, including areas of distribution).

Body weight will be assessed via a seca mBCA 554 bioelectrical impedance scale.

Three blood pressure readings will be taken 2 minutes apart after 5 minutes of rest using an automatic oscillometric device, Omron HEM-907. The average of the three readings will be recorded.

Obtained via two height measurements using a stadiometer and one weight measurement using a Seca scale, using the standard equation (Weight (lbs) x 703) / height (in)2

Assessed via self-report using the Muscle Strengthening Exercise Questionnaire Short Form, a scale assessing key dimensions of muscle-strengthening exercise, including frequency, session duration, intensity, exercise type, and muscle groups targeted

A self-report assessment using the Self-efficacy for Physical Activity Scale, a 5-question scale assessing how confident a person is that they could be physically active in certain situations

A self-report assessment using the 1 question Readiness to Change for Physical Activity, which assess a person's current physical activity habits and readiness to change.

A self-report assessment using the Eating and Weight Self-efficacy Scale, a 7-question scale assessing a person's confidence to eat healthy in certain situations

A self-report assessment using the 1 question Readiness to Change for Healthy Eating, which assess a person's current eating habits and readiness to change

Physical health will be assessed using the PROMIS Global Physical Health, consisting of 4 questions asking about overall health, physical function, pain, and fatigue using Likert scale responses

The Theoretical Framework of Acceptability (TFA) is an 8-item questionnaire that can be adapted to an intervention to assess the acceptability of healthcare interventions using a Likert scale of 1 to 5 (higher scores indicating greater acceptability).