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
- Marino, FR, Wu, HT, Etzkorn, L, Rooney, MR, Soliman, EZ, Deal, JA, Crainiceanu, C, Spira, AP, Wanigatunga, AA, Schrack, JA et al.. Associations of Physical Activity and Heart Rate Variability from a Two-Week ECG Monitor with Cognitive Function and Dementia: the ARIC Neurocognitive Study. medRxiv 2024; : . PubMed PMID:38496423 PubMed Central PMC10942521.
- 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. J Transp Health 2024; 34 : . PubMed PMID:38405233 PubMed Central PMC10883474.
- Spira, AP, Liu, F, Zipunnikov, V, Bilgel, M, Rabinowitz, JA, An, Y, Di, J, Bai, J, Wanigatunga, SK, Wu, MN et al.. Evaluating a Novel 24-Hour Rest/Activity Rhythm Marker of Preclinical β-Amyloid Deposition. Sleep 2024; : . PubMed PMID:38381532 .
- Sayyid, ZN, Wang, H, Cai, Y, Gross, AL, Swenor, BK, Deal, JA, Lin, FR, Wanigatunga, AA, Dougherty, RJ, Tian, Q et al.. Sensory and motor deficits as contributors to early cognitive impairment. Alzheimers Dement 2024; : . PubMed PMID:38375574 .
- Reed, NS, Gravens-Mueller, L, Huang, AR, Goman, AM, Mitchell, CM, Arnold, ML, Bolton, S, Burgard, S, Chisolm, TH, Couper, D et al.. Recruitment and baseline data of the Aging and Cognitive Health Evaluation in Elders (ACHIEVE) study: A randomized trial of a hearing loss intervention for reducing cognitive decline. Alzheimers Dement (N Y) 2024; 10 (1): e12453. PubMed PMID:38356470 PubMed Central PMC10865776.
- Davoudi, A, Urbanek, JK, Etzkorn, L, Parikh, R, Soliman, EZ, Wanigatunga, AA, Gabriel, KP, Coresh, J, Schrack, JA, Chen, LY et al.. Validation of a Zio XT Patch Accelerometer for the Objective Assessment of Physical Activity in the Atherosclerosis Risk in Communities (ARIC) Study. Sensors (Basel) 2024; 24 (3): . PubMed PMID:38339479 PubMed Central PMC10857412.
- Cai, Y, Liu, F, Wanigatunga, AA, Urbanek, JK, Simonsick, EM, Ferrucci, L, Schrack, JA. Musculoskeletal Pain Characteristics and Objectively Measured Physical Activity in Older Adults. J Gerontol A Biol Sci Med Sci 2024; 79 (4): . PubMed PMID:38310640 PubMed Central PMC10960625.
- Sanchez, VA, Arnold, ML, Betz, JF, Reed, NS, Faucette, S, Anderson, E, Burgard, S, Coresh, J, Deal, JA, Eddins, AC et al.. Description of the Baseline Audiologic Characteristics of the Participants Enrolled in the Aging and Cognitive Health Evaluation in Elders Study. Am J Audiol 2024; 33 (1): 1-17. PubMed PMID:38166200 PubMed Central PMC11001432.
- Kolberg, ER, Morales, EEG, Thallmayer, TW, Arnold, ML, Burgard, S, Chisolm, TH, Coresh, J, Couper, D, Hayden, KM, Huang, AR et al.. Hearing loss and cognition: A protocol for ensuring speech understanding before neurocognitive assessment. Alzheimers Dement 2024; 20 (3): 1671-1681. PubMed PMID:38081140 PubMed Central PMC10947954.
- Twardzik, E, Schrack, JA, Freedman, VA, Reed, NS, Ehrlich, JR, Martinez-Amezcua, P. An Incomplete Model of Disability: Discrepancies Between Performance-Based and Self-Reported Measures of Functioning. J Gerontol A Biol Sci Med Sci 2024; 79 (4): . PubMed PMID:38071606 PubMed Central PMC10959443.
