This study examines the separate and combined effects of a high-protein diet(HP) and resistance training (RT) on body composition and potential biological moderators of body weight in women and men over 50. All participants will receive guidance on dietary physical activity through our group-based weight loss program, State of Slim (SOS). The SOS program is delivered via Zoom. Participants are randomized to receive either a counseling-based high-protein diet plan or a resistance training plan. Body composition assessments at eight weeks identify responders and non-responders; the latter will be re-randomized to augment (HP: add protein supplements; RT: supervise RT) or combine (HP with protein supplements + supervised RT).

Principal Investigator: Drew Sayer, PhD

Both pain and obesity have emerged as common co-morbidities in the context of HIV. HIV-related stigma poses a significant barrier to improving health outcomes for people with HIV, with research supporting an association between internalized HIV stigma and pain. Extant research suggests obesity is also associated with pain but may interact with other variables in its association. This study aims to assess the interaction between internalized HIV stigma and BMI on the outcome of perceived acute pain. 

Principal Investigator: Kaylee Crockett, Ph.D.

Enhancements in mobile phone technology allow researchers to study the daily lives of children and adolescents like never before. Ecological momentary assessment (EMA) uses these advancements to allow in-depth measurements of links between context, behavior, and physiology in youths’ everyday lives. A large and varied body of literature now exists on the use of EMA to study mental and behavioral health among youth. Modern EMA methods are built on a rich tradition of idiographic inquiry focused on the intensive study of individuals. Studies of child and adolescent mental and behavioral health have used EMA to characterize lived experience, document naturalistic within-person processes and individual differences in these processes, measure familiar constructs in novel ways and examine temporal order and dynamics in youths’ everyday lives.

Principal Investigator: Jamie Gajos, Ph.D.

This 16-week study used an experimental approach called the Sequential Multiple Assignment Randomized Trial to determine which combination and sequence of weight loss program features are most effective in people who are at risk for type 2 diabetes. Participants in the study will be initially randomized to consume either a high or reduced carbohydrate diet. After 4 weeks, participants will be identified as Responders (greater than or equal to 2.5% weight loss) or Non-Responders (less than 2.5% weight loss). Responders will continue with their initial randomized group for the remainder of the trial. Non-responders will be re-randomized to 2nd stage interventions of either including additional exercise counseling and training or beginning a time restricted eating protocol for the remainder of the trial.

Principal Investigator: Drew Sayer, Ph.D.
Funding source: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)