Daily Self-weighing and Holiday-associated Weight Gain in Adults

Not Applicable

Completed

• Conditions: Obesity
• Interventions: Device: Daily self-weighing (DSW)

• Registration Number: NCT03718000
• Lead Sponsor: University of Georgia

Brief Summary

Background: Previous studies report 0.4-1.5kg of weight gain during the holiday season, which may contribute to annual weight gain.

Purpose: To test whether daily self-weighing (DSW) can prevent holiday weight gain.

Hypothesis: We hypothesized that daily self-weighing would effectively prevent weight and fat gain, and that individuals with overweight and obesity would respond most favorably to DSW.

Detailed Description

A single-blinded randomized control trial:

Adults (age 18-75y, BMI ≥ 18.5kg/m2) were randomized to either a control or daily self-weighing (DSW) group. There were 3 testing visits: pre-holiday (v1: within 7d before Thanksgiving), post-holiday (v2: within 7d after New Year's Day), and a follow-up (v3: 14 weeks after v2). The DSW group were given Wi-Fi scales that provide graphical feedback of daily weight. They were instructed to perform DSW during the holidays and to try not to gain weight above baseline weights. Anthropometrics were measured at each visit.

Study Timeline

• Study Start: 2017-11-01
• Primary Completion: 2018-01-30
• Study Completion: 2018-04-30
• Study First Submitted: 2018-10-17
• Study First Submitted QC: 2018-10-22
• Study First Posted: 2018-10-24
• Results First Submitted: 2019-04-23
• Results First Submitted QC: 2019-05-21
• Status Verified: 2019-06
• Results First Posted: 2019-06-13
• Last Update Submitted: 2022-05-28
• Last Update Posted: 2022-06-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 111

Inclusion Criteria

• BMI of at least 18.5 kg/m2
• Recognizing or celebrating at least two holidays between November and January
• Access to WiFi

Exclusion Criteria

• Current eating disorder, history of an eating disorder
• Involvement in a current weight loss and/or exercise program
• Pregnancy or nursing
• Any medications or chronic diseases affecting metabolism or body weight

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Daily Self-Weighing (DSW)	Daily self-weighing (DSW)	Participants in this group performed daily self-weighing using digital WiFi scales during the holiday season

Primary Outcome Measures

Name	Time	Method
Change in Body Weight (kg) From Pre- to Post-holiday and 14-week Follow-up Post-holiday	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Mechanical Beam Scale (Model 402KL, Health o Meter professional scales, McCook, IL, USA); Capacity: 390 lbs / 180 kg; Readability: 1/4 lb / 100 g.

Secondary Outcome Measures

Name	Time	Method
Body Mass Index (BMI) (kg/m^2)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	weight and height will be combined to report BMI in kg/m\^2
Body Fat (%)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Dual Energy X-Ray Absorptiometry
Waist Circumference (cm)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Measuring tape
Hip Circumference (cm)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Measuring tape
Concentration of Blood Triglyceride (mg/dL)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Fasting blood draw
Concentration of Blood High-density Lipoprotein (HDL) (mg/dL)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Fasting blood draw
Concentration of Blood Low-density Lipoprotein (LDL) (mg/dL)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Fasting blood draw
Concentration of Blood Total Cholesterol (TC) (mg/dL)	Measured at 3 testing visits: Visit 1 (pre-holiday visit) occurred within 7 days before Thanksgiving, visit 2 (post-holiday visit) occurred within 7 days after New Year's Day, and visit 3 (follow-up visit) occurred 14 weeks after visit 2.	Fasting blood draw

Trial Locations

Locations (1)

University of Georgia - Department of Foods and Nutrition; 🇺🇸 Athens, Georgia, United States