Pretreatment and During-Treatment Weight Trajectories in Black and White Women.

INTRODUCTION: Black participants often lose less weight than White participants in response to behavioral weight-loss interventions. Many participants experience significant pretreatment weight fluctuations (between baseline measurement and treatment initiation), which have been associated with treatment outcomes. Pretreatment weight gain has been shown to be more prevalent among Black participants and may contribute to racial differences in treatment responses. The purpose of this study was to (1) examine the associations between pretreatment weight change and treatment outcomes and (2) examine racial differences in pretreatment weight change and weight loss among Black and White participants. METHODS: Participants were Black and White women (n=153, 60% Black) enrolled in a 4-month weight loss program. Weight changes occurring during the pretreatment period (41 ± 14 days) were categorized as weight stable (±1.15% of baseline weight), weight gain (≥+1.15%), or weight loss (≤-1.15%). Recruitment and data collection occurred from 2011 to 2015; statistical analyses were performed in 2021. RESULTS: During the pretreatment period, most participants (56%) remained weight stable. Pretreatment weight trajectories did not differ by race (p=0.481). At 4-months, those who lost weight before treatment experienced 2.63% greater weight loss than those who were weight stable (p<0.005), whereas those who gained weight before treatment experienced 1.91% less weight loss (p<0.01). CONCLUSIONS: Pretreatment weight changes can impact weight outcomes after initial treatment, although no differences between Black and White participants were observed. Future studies should consider the influence of pretreatment weight change on long-term outcomes (e.g., weight loss maintenance) along with potential racial differences in these associations. This study is registered (retrospectively registered) at ClinicalTrials.gov (NCT02487121) on June 26, 2015.

Correlates of psychological distress among adults with obesity during the COVID-19 pandemic.

OBJECTIVE: The present study evaluated changes in stress and loneliness among participants with obesity engaged in weight loss self-management in the United States (US) during COVID-19, and identified factors that may increase risk or protect against psychosocial distress during this time. DESIGN: Participants who were enrolled in a weight self-management program prior to the COVID-19 pandemic (N = 55, 91% female, 36% Caucasian, mean age = 49.8 years) completed an online survey about social, economic and health behaviour changes during COVID-19 and their relationship to changes in perceived stress and loneliness. MAIN OUTCOME MEASURES: Perceived Stress (PSS-4), Loneliness (PROMIS loneliness and social isolation questionnaire). RESULTS: Compared to pre-COVID assessments, stress and loneliness increased 40% two months into the COVID-19 pandemic-related shutdown. Higher body mass index (BMI) and social distancing were associated with increases in both loneliness and stress. Alcohol intake was associated with increased stress, and working from home was associated with increased loneliness. CONCLUSION: Individuals with obesity endorsed increased stress and loneliness during COVID-19, which may be exacerbated among those with a higher BMI and greater adherence to social distancing guidelines. Ongoing attention to psychosocial well-being among individuals with obesity will remain imperative both during the ongoing pandemic and beyond.

The COVID-19 pandemic and weight management: Effective behaviors and pandemic-specific risk factors.

BACKGROUND: Obesity and comorbid conditions are associated with worse outcomes related to COVID-19. Moreover, social distancing adherence during the COVID-19 pandemic may predict weight gain due to decreased physical activity, increased emotional eating, and social isolation. While early studies suggest that many individuals struggled with weight management during the pandemic, less is known about healthy eating and weight control behaviors among those enrolled in weight loss programs. METHODS: The present study evaluated weight management efforts among weight loss program participants during the COVID-19 pandemic. Participants' (N = 55, 90.9% female, 36% white, Mage = 49.8) demographics and body mass index were collected two months prior to the COVID-19 statewide shutdown. During the lockdown, an online survey assessed health behaviors, coping, COVID-19 experiences (e.g., social distancing, loneliness), and weight gain. Logistic regressions examined demographics, health behaviors, and COVID-19 factors as predictors of weight gain. RESULTS: Most participants (58%) reported gaining weight during COVID-19. Weight gain was predicted by challenges with the following health behaviors: physical activity, monitoring food intake, choosing healthy foods, and emotional eating. Loneliness and working remotely significantly related to emotional eating, physical activity, and choosing healthy foods. CONCLUSIONS: Loneliness and working remotely increased the difficulty of weight management behaviors during COVID-19 among weight loss program participants. However, staying active, planning and tracking food consumption, choosing healthy foods, and reducing emotional eating protected against weight gain. Thus, these factors may be key areas for weight management efforts during the pandemic.