Symposium Speaker: Jennifer A. Schrack, PhD, MS

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

  1. Schrack, JA, Leroux, A, Fleg, JL, Zipunnikov, V, Simonsick, EM, Studenski, SA, Crainiceanu, C, Ferrucci, L. Using Heart Rate and Accelerometry to Define Quantity and Intensity of Daily Physical Activity in Older Adults. J. Gerontol. A Biol. Sci. Med. Sci. 2018; : . PubMed PMID:29509832 .
  2. Sun, J, Brown, TT, Samuels, DC, Hulgan, T, D'Souza, G, Jamieson, BD, Erlandson, KM, Martinson, J, Palella, FJ Jr, Margolick, JB et al.. The Role of Mitochondrial DNA Variation in Age-Related Decline in Gait Speed Among Older Men Living with HIV. Clin. Infect. Dis. 2018; : . PubMed PMID:29481608 .
  3. Gresham, G, Dy, SM, Zipunnikov, V, Browner, IS, Studenski, SA, Simonsick, EM, Ferrucci, L, Schrack, JA. Fatigability and endurance performance in cancer survivors: Analyses from the Baltimore Longitudinal Study of Aging. Cancer 2018; 124 (6): 1279-1287. PubMed PMID:29419879 .
  4. Simonsick, EM, Aronson, B, Schrack, JA, Hicks, GE, Jerome, GJ, Patel, KV, Studenski, SA, Ferrucci, L. Lumbopelvic Pain and Threats to Walking Ability in Well-Functioning Older Adults: Findings from the Baltimore Longitudinal Study of Aging. J Am Geriatr Soc 2018; : . PubMed PMID:29411349 .
  5. Wanigatunga, AA, Simonsick, EM, Zipunnikov, V, Spira, AP, Studenski, S, Ferrucci, L, Schrack, JA. Perceived fatigability and objective physical activity in mid- to late-life. J. Gerontol. A Biol. Sci. Med. Sci. 2017; : . PubMed PMID:29028920 .
  6. Bai, J, Sun, Y, Schrack, JA, Crainiceanu, CM, Wang, MC. A two-stage model for wearable device data. Biometrics 2017; : . PubMed PMID:29023644 .
  7. Nastasi, AJ, Ahuja, A, Zipunnikov, V, Simonsick, EM, Ferrucci, L, Schrack, JA. Objectively Measured Physical Activity and Falls in Well-Functioning Older Adults: Findings From the Baltimore Longitudinal Study of Aging. Am J Phys Med Rehabil 2017; : . PubMed PMID:28915202 PubMed Central PMC5851797.
  8. Gross, AL, Lu, H, Meoni, L, Gallo, JJ, Schrack, JA, Sharrett, AR. Physical Activity in Midlife is not Associated with Cognitive Health in Later Life Among Cognitively Normal Older Adults. J. Alzheimers Dis. 2017; 59 (4): 1349-1358. PubMed PMID:28759969 .
  9. Schrack, JA, Gresham, G, Wanigatunga, AA. Understanding physical activity in cancer patients and survivors: new methodology, new challenges, and new opportunities. Cold Spring Harb Mol Case Stud 2017; 3 (4): . PubMed PMID:28679694 PubMed Central PMC5495035.
  10. Coyle, PC, Schrack, JA, Hicks, GE. Pain Energy Model of Mobility Limitation in the Older Adult. Pain Med 2017; : . PubMed PMID:28531299 .
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Schrack Lab Website

Curriculum vitae