Dr. Jennifer Schrack is Assistant Professor of Epidemiology at Johns Hopkins Bloomberg School of Public Health (JHSPH). Dr. Schrack holds a joint position with the Krieger School of Arts and Sciences, and she is affiliated with several Centers including the Center for AIDS Research, the Johns Hopkins Center on Aging and Health, the Multicenter AIDS Cohort Study, and the Welch Center for Prevention, Epidemiology and Clinical Research.
Dr. Schrack's primary area of research is the epidemiological assessment of physical activity and its associations with health and longevity in older populations. In collaboration with the SMART group from the JHSPH Department of Biostatistics, Dr. Schrack is working to establish methods to analyze and translate heart rate and accelerometry data into accurate and reliable measures of physical activity in older populations. In recognition of these efforts, Dr. Schrack was recently awarded a 2017 Johns Hopkins University Catalyst Award and a U01 from the National Institute on Aging.
Recent Publications
- Yesantharao, L, Cai, Y, Schrack, JA, Gross, AL, Wang, H, Bilgel, M, Dougherty, R, Simonsick, EM, Ferrucci, L, Resnick, SM et al.. Sensory impairment and beta-amyloid deposition in the Baltimore longitudinal study of aging. Alzheimers Dement (Amst) 2023; 15 (2): e12407. PubMed PMID:37139098 PubMed Central PMC10150164.
- Cai, Y, Schrack, JA, Gross, AL, Armstrong, NM, Swenor, BK, Deal, JA, Lin, FR, Wang, H, Tian, Q, An, Y et al.. Sensory impairment and algorithmic classification of early cognitive impairment. Alzheimers Dement (Amst) 2023; 15 (2): e12400. PubMed PMID:37063388 PubMed Central PMC10103182.
- Twardzik, E, Schrack, JA, Pollack Porter, KM, Coleman, T, Washington, K, Swenor, BK. TRansit ACessibility Tool (TRACT): Developing a novel scoring system for public transportation system accessibility. medRxiv 2023; : . PubMed PMID:36945392 PubMed Central PMC10029027.
- Kuo, PL, Schrack, JA, Levine, ME, Shardell, MD, Simonsick, EM, Chia, CW, Moore, AZ, Tanaka, T, An, Y, Karikkineth, A et al.. Longitudinal phenotypic aging metrics in the Baltimore Longitudinal Study of Aging. Nat Aging 2022; 2 (7): 635-643. PubMed PMID:36910594 PubMed Central PMC9997119.
- Schrack, JA, Cai, Y, Urbanek, JK, Wanigatunga, AA, Mitchell, CM, Miller, ER 3rd, Guralnik, JM, Juraschek, SP, Michos, ED, Roth, DL et al.. The association of vitamin D supplementation and serum vitamin D levels with physical activity in older adults: Results from a randomized trial. J Am Geriatr Soc 2023; : . PubMed PMID:36821761 .
- Cai, Y, Schrack, JA, Agrawal, Y, Armstrong, NM, Wanigatunga, A, Kitner-Triolo, M, Moghekar, A, Ferrucci, L, Simonsick, EM, Resnick, SM et al.. Application and validation of an algorithmic classification of early impairment in cognitive performance. medRxiv 2023; : . PubMed PMID:36798178 PubMed Central PMC9934722.
- Schrack, JA, Corkum, AE, Freedman, VA. COVID-19 pandemic experiences of older adults with dementia in community and residential care settings: Results from a US national survey. Alzheimers Dement (Amst) 2022; 14 (1): e12382. PubMed PMID:36582364 PubMed Central PMC9791074.
- Kuo, PL, An, Y, Gross, AL, Tian, Q, Zipunnikov, V, Spira, AP, Wanigatunga, AA, Simonsick, EM, Ferrucci, L, Resnick, SM et al.. Association between walking energy utilisation and longitudinal cognitive performance in older adults. Age Ageing 2022; 51 (12): . PubMed PMID:36571773 PubMed Central PMC9792087.
- Jiang, K, Armstrong, NM, Agrawal, Y, Gross, AL, Schrack, JA, Lin, FR, Ferrucci, L, Resnick, SM, Deal, JA, Powell, DS et al.. Associations of audiometric hearing and speech-in-noise performance with cognitive decline among older adults: The Baltimore Longitudinal Study of Aging (BLSA). Front Neurol 2022; 13 : 1029851. PubMed PMID:36570462 PubMed Central PMC9784219.
- Gonçalves, TR, Cunha, DB, Mediano, MFF, Wanigatunga, AA, Simonsick, EM, Schrack, JA. Association of non-chronic low back pain with physical function, endurance, fatigability, and quality of life in middle- and older-aged adults: Findings from Baltimore Longitudinal Study of Aging. PLoS One 2022; 17 (11): e0277083. PubMed PMID:36355756 PubMed Central PMC9648728.
