Jan Kretzschmar, Ph.D.

Biography

Jan Kretzschmar, Ph.D., NSCA-CSCS, is an esteemed Associate Professor of Exercise Science at King’s College with over a decade of experience in kinesiology, human nutrition, and rehabilitation. He earned his Ph.D. in Kinesiology from the University of Illinois, specializing in Integrative Pathophysiology, Nutrition, and Health Promotion, following a magna cum laude Bachelor of Science in Kinesiology from Temple University.

Beyond teaching, Dr. Kretzschmar is the Program Director for Sports and Performance Science and has held leadership positions as Department Chair and CEO of the International Rugby Strength and Conditioning Association. He is also the owner of Police Jiu Jitsu™ HQ and serves as a Shelter Coordinator for Keystone Mission.

His research concentrates on exercise physiology and its effects on diverse populations, particularly African Americans, emphasizing vascular health and inflammation. Dr. Kretzschmar has published extensively in peer-reviewed journals and developed innovative exercise interventions.

A certified strength and conditioning specialist, he is dedicated to health and wellness advocacy, actively participating in community service and securing grants for health programs. In his free time, he practices Brazilian Jiu Jitsu and enjoys various sports, demonstrating his commitment to fitness. Fluent in multiple languages, he brings a global perspective to health promotion and education.

Education

• B.S., Kinesiology, Temple University
• Ph.D., Kinesiology and Nutrition, University of Illinois

Publications and Presentations

• Kretzschmar J, A Journey of Faith: The Orthodox Christian Prayer. September 2023. ISBN-13: 979-8861528931
• Grimm H, Kretzschmar J, Cook M, Brown MD. The Effects of Exercise, Aspirin, and Celecoxib in an Atherogenic Environment. Medicine & Science in Sport and Exercise. Medicine & Science in Sports & Exercise, October 2018. DOI: 10.1249/MSS.0000000000001657.
• Kretzschmar, J., Babbitt, D.M., Diaz, K.M., Feairheller, D.L., Sturgeon, K.M., Perkins, A.M., Williamson, S.T., Ling, C., Lee, H., Grimm, H., Thakkar, S.R., & Brown, M.D. Differential Response to Exercise in African Americans with High Levels of Inflammation. Ethnicity & Disease, Summer 2017. doi:10.18865/ed.27.3.233
• Babbitt, D.M., Perkins, A.M., Diaz, K.M., Feairheller, D.L., Sturgeon, K.M., Veerabhadrappa, P., Williamson, S.T., Kretzschmar, J., Ling, C., Lee, H., Grimm, H., & Brown, M.D. Adherence to Exercise Prescription and Improvements in the Clinical and Vascular Health of African Americans. Int J Exerc Sci, March 2017.
• Dorminy, M; Hoogeveen, A; Tierney, R.T.; Higgins, M.; McDevitt, J.K.; Kretzschmar, J. Effect of soccer heading ball speed on S100B, sideline concussion assessments and head impact kinematics. Brain Injury, May 2015. doi: 10.3109/02699052.2015.1035324
• Ling, C., Diaz, K.M., Kretzschmar, J., Feairheller, D.L., Sturgeon, K.M., Perkins, A.M., Veerabhadrappa, P., Williamson, Lee, H., Grimm, H., Babbitt, D.M., Brown, M.D. Chronic Aerobic Exercise Improves Blood Pressure Dipping Status In African American Non-Dippers. Blood Pressure Monitoring, December 2014. doi: 10.1097/MBP.0000000000000075.
• Babbitt, D.M., Perkins, A.M., Diaz, K.M., Feairheller, D.L., Sturgeon, K.M., Veerabhadrappa, P., Williamson, S.T., Kretzschmar, J., Ling, C., Lee, H., Grimm, H., & Brown, M.D. Adherence levels to an aerobic exercise training intervention in African Americans have no adverse impact on favorable endothelial adaptations. Journal of the American Society of Hypertension, April 2014. DOI
• Feairheller, D.L., Diaz, K.M., Kashem, M.A., Thakkar, S.R., Veerabhadrappa, P., Sturgeon, K.M., Ling, C., Williamson, S.T., Kretzschmar, J., Lee, H., Grimm, H., Babbitt, D.M., Vin, C., Fan, X., Crabbe, D.L., & Brown, M.D. Effects of Moderate Aerobic Exercise Training on Vascular Health and Blood Pressure in African Americans. Journal of Clinical Hypertension, April 2014. doi: 10.1111/jch.12328
• Kretzschmar, J., Babbitt, D.M., Diaz, K.M., Feairheller, D.L., Sturgeon, K.M., Perkins, A.M., Veerabhadrappa, P., Williamson, S.T., Ling, C., Lee, H., Grimm, H., Thakkar, S.R., Crabbe, D.L., Kashem, M.A., & Brown, M.D. A standardized exercise intervention differentially affects pre- and post-menopausal African American women. Menopause, 2014; doi:10.1097/GME.0000000000000133.
• Perkins-Ball, A., Babbitt, D., Diaz, K., Kretzschmar, J., Feairheller, D., Ling, C., Lee, H., Grimm, H., Sturgeon, K., Thakkar, S., Brown, M.D. Relationship between Exercise Adherence and Improvements in Clinical Health Outcomes among African American Adults. Medicine & Science in Sports & Exercise, 2014; doi: 10.1249/01.mss.0000496211.35088.de.
• Grimm, H., Kretzschmar, J., Thakkar, S., Ling, C., Diaz, K., Sturgeon, K., Feairheller, D., Perkins-Ball, A., Lee, H., Williamson, S., Babitt, D., Brown, M.D. Aerobic Exercise Effects on Endothelial Health Status in Pre-and Post-Menopausal African American Women. Hypertension, 2014; doi:10.1161/hyp.62.suppl_1.A302.
• Ling, C., Kretzschmar, J., Grimm, H., Brown, M.D. Racial differences of eNOS expression respond to C-reactive protein. Artery Research; doi:10.1016/j.artres.2014.09.018.
• Grimm, H., Kretzschmar, J., & Brown, M.D. Racial differences in vascular function. Artery Research, 2014; doi:10.1016/j.artres.2014.09.027
• Diaz, K.M., Veerabhadrappa, P., Kashem, M.A., Thakkar, S.R., Feairheller, D.L., Sturgeon, K.M., Ling, C., Williamson, S.T., Kretzschmar, J., Lee, H., Grimm, H., Babbitt, D.M., V

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