Overview
My research is focused on developing evidence-based physical activity interventions for older adults with an eye to preserving functional independence and quality of life. I am particularly interested in developing exercise programs to promote physical and psychological well-being among older veterans with posttraumatic stress disorder (PTSD).
Current Appointments & Affiliations
Professor in Medicine
·
2025 - Present
Medicine, Geriatrics and Palliative Care,
Medicine
Senior Fellow of the Center for the Study of Aging and Human Development
·
2020 - Present
Center for the Study of Aging and Human Development,
Institutes and Centers
Recent Publications
Sleep quality improvements and maintenance with exercise in older veterans with PTSD: Results from a pilot randomized trial
Journal Article Mental Health and Physical Activity · October 1, 2026 Background and aims: Identifying novel strategies to improve sleep quality among individuals with post-traumatic stress disorder (PTSD) is critically needed. The aim of the study was to evaluate the effects of exercise on sleep quality in older adults with ... Full text CiteFrailty phenotype in adults with sickle cell disease.
Journal Article J Gerontol A Biol Sci Med Sci · May 7, 2026 BACKGROUND: People with sickle cell disease (SCD) are at risk for accelerated biological aging and functional decline due to both age and SCD-related stressors. Frailty is characterized by decreased physiologic reserve and increased vulnerability to stress ... Full text Link to item CiteClinical predictors of resilience following total knee arthroplasty: the PRIME-KNEE study.
Journal Article J Gerontol A Biol Sci Med Sci · April 7, 2026 BACKGROUND: We aimed to describe recovery trajectories over 6 months in pain intensity, pain interference, lower extremity disability, and physical activity in older adults undergoing elective total knee arthroplasty (TKA), and to identify clinically feasi ... Full text Link to item CiteRecent Grants
Patterns of Biological, Cognitive, and Physical Aging in Cancer Survivors and Controls and the Role of Sleep Health: Relevance for Alzheimer's Disease and Related Dementias
ResearchCo Investigator · Awarded by University of California - Los Angeles · 2023 - 2028Duke CTSA (TL1) Year 5
Inst. Training Prgm or CMEMentor · Awarded by National Institutes of Health · 2018 - 2024Physical Resiliencies: Indicators and Mechanisms in the Elderly Collaborative (PRIME Collaborative)
ResearchCo Investigator · Awarded by National Institutes of Health · 2017 - 2024View All Grants
Education
University of Illinois, Urbana-Champaign ·
2008
Ph.D.