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About us

Jay Dawes, PhD, CSCS, *D, NSCA-CPT, TSAC-F, FNSCA, is an associate professor of applied exercise science in the School of Kinesiology, Applied Health and Recreation at OSU. Dr. Dawes has worked as a university athletic performance coordinator, strength/performance coach, personal trainer and educator for over 20 years. His primary research interests is focused on improving the health, fitness and human performance for the tactical athletes and first responders. He is the co-founder and co-director of the OSU Tactical Fitness and Nutrition Lab and a member of the OSU Fire Council.


Jill Joyce, PhD, RD, is a Registered Dietitian, assistant professor of public health nutrition in the Department of Nutritional Sciences and co-founder of the OSU Tactical Fitness and Nutrition Lab. She has been a RD for almost 10 years, spent nine years as an active duty Army spouse and has numerous family members and friends who are firefighters, soldiers and law enforcement officers. At OSU, Jill is excited and honored to be able to serve those who serve us by creating and testing public health nutrition programs to improve the health, fitness and performance of tactical athletes.


Jay Dawes and Jill Joyce



  • Collaborators
    • OSU OKC Fire Academy
    • OSU CHS Armor and Shield
    • OSU Air Force and Army ROTC
    • Bond Tactical Research Unit
    • University of Rome Tor Vergata
    • California State University Fullerton-Tactical Research Unit
  • Affiliates
    • 10th Group SOCOM
    • Warrior’s Rest Foundation
  • Publications
    • Lockie, R.G, MacLean, N.*, Orr, R., Dawes, J., Holmes, R., Kornhauser, C. & Pope. R. (Accepted). The impact of formal physical conditioning on the fitness of new police recruits: A retrospective cohort study. International Journal of Exercise Science. 
    • Mackey, C.S.*, Johnson Q.*, Dawes, J.J., & Defreitas, J.M. (Accepted). Impact of summer break on anthropometrics and physical performance among Air Force Reserve Officers’ Training Corps cadets. Aerospace Medicine and Human Performance.  
    • Lockie, R.G., Moreno, M.*, & Dawes J.J. (Accepted). Research note on relationships between the standing broad jump and vertical jump in law enforcement recruits: Implications for lower-body power testing. Journal of Strength and Conditioning Research. 
    • Lockie, R.G., Moreno, M.R.*, Cesario, K.A.*, Balfany, K.*, Dulla J.M., Orr, R.M., & Dawes, J.J. (Accepted). With great power comes great ability: Extending research on fitness characteristics that influence work sample test battery performance in law enforcement recruits. Work. 
    • Lockie, R.G., Dulla, J.M., Orr, R.M., & Dawes, J.J. (Accepted). Physical fitness changes from initial hiring to academy in law enforcement recruits who graduate or separate from academy. Work 
    • Orr, R.M., Kukić, F., Čvorović, A., Koropanovski, N., Janković, R., Dawes, J.J., & Lockie, R. (Accepted) Associations between fitness measures and change of direction speed with and without occupational loads in female police officers. Occupational Safety and Health. 
    • Lockie, R.G., Fazilat, B.*, Dulla, J.M., Stierli, M., Orr, R.M., Dawes, J.J., & Pakdamanian, K.* (Accepted). Physical fitness characteristics of different custody assistant classes prior to academy training. Journal of Australian Strength and Conditioning. 
    • Lockie, R.G., Dulla, J.M., Stierli, M., Cesario, K.A.*, Moreno, M.R.*, Bloodgood, A.M.*, Orr, R.M., & Dawes, J.J. (Accepted) Associations between body mass and physical fitness assessments in male custody assistants from a law enforcement agency. Journal of Australian Strength and Conditioning. 
    • Lockie, R.G., Pope, R., Saarooni, O.*, Dulla, J., Dawes, J.J., & Orr, R.M. (2020). Job-specific physical fitness changes measured by the Work Sample Test Battery within deputy sheriffs between training academy and their first patrol assignment. International Journal of Exercise Science. 13(4): 1262-1274 
    • Johnson, Q.R.*, Joyce, J.M., Kukić, F. Lockie, R.G, Kornhauser, C.L., Orr, R.M., & Dawes, J.J. (2020). Accuracy of body mass index based on self-report data among police cadets. Journal of Criminalistics and Law.  
    • Stone, B.L., Alvar, B.A., Orr, R.M., Lockie R.G., Johnson, Q* Goatcher, J*, & Dawes J.J. (2020). Impact of an 11-week strength and conditioning program on firefighter trainee fitness. Sustainability. 12, 6541; doi:10.3390/su12166541 
    • Wiley, A.*, Joseph, A.*, Orr, R., Schram, B., Kornhauser, C.L., Holmes, R.J., & Dawes, J.J. (2020). The impact of external loads carried by police officers on vertical jump performance. International Journal of Exercise Science. 13(6):1179-1189 
    • Dawes, J.J., Stahl, C.A.*, Lockie, R.G., Redmond, J.E., Kornhauser, C.L., Holmes, R.J., & Orr, R.M. (2020). Associations between two measures of trunk muscular endurance among male law enforcement officers. Journal of Science in Sport and Exercise.  
    • Lockie, R.G., Dulla J. Orr, R., & Dawes, J.J. (2020). Importance of ability based training for law enforcement recruits. Strength and Conditioning Journal. July 22, 2020 - Publish Ahead of Print - doi: 10.1519/SSC.0000000000000583 
    • Orr, R.M., Ferguson, D.*, Schram, B.B., Dawes, J.J., Lockie, R.G., & Pope, R. (2020). The relationship between aerobic test performance and injury in police recruits. International Journal of Exercise Science. 13(4): 1052-1062 
    • Lockie, R.G., Dawes, J.J., Orr, R.M., Dulla, J.M., Beitzel, M.*, & Hernandez, J.*  (2020). Between-sex differences in the work sample test battery performed by law enforcement recruits: Implications for training and potential job performance. Journal of Strength and Conditioning Research. XX(X): 000–000 
    • Lockie, R.G., Bloodgood, A*, Moreno, M*. McGuire, M.*, Balfany, K.*, & Dawes, J.J. (2020). Training load demands measured by surface electromyography wearable technology when law enforcement-specific body drags. Physical Education and Sport. 18 (1): 1-12 
    • Lockie, R. G., Ruvalcaba, T. R.*, Stierli, M., Dulla, J. M., Dawes, J. J., & Orr, R. M. (2020). Waist circumference and waist-to-hip ratio in law enforcement agency recruits: Relationship to performance in physical fitness tests. Journal of Strength and Conditioning Research, 34(6), 1666-1675  
    • Kukić, F., Todorović, N., Čvorović, A., Johnson, Q.* & Dawes, J.J. (2020). Association of improvements in squat jump with improvements in countermovement jump without and with arm swing 
      Serbian Journal of Sports Science. 11(1): 29-32
    • Canetti, E.F.D., Dawes, J., Drysdale, P.H.*, Lockie, R.G., Kornhauser, C., Holmes, R., Schram, B., & Orr, R.M. (2020). The use of metabolic fitness measures as indicators of police occupational task performance. Journal of Science in Sport and Exercise. ttps:// 
    • Koropanovski, N., Kukic, F., Janković, R., Dimitrijević, R., Dawes, J.J., Lockie, R., & Dopsaj, M.   (2020). Impact of physical fitness on recruitment and its association to study outcomes in police students. South African Journal for Research in Sport, Physical Education and Recreation. 42(1): 23 – 34. 
    • Kukic, F., Koropanovski, N., Radivoje, J., Cvorovi, A., Dawes, J.J., Lockie, R.G., Orr, R.M., & Dopsaj, M. (2020) Association of sex-related differences in body composition to change of direction speed in police officers while carrying load. International Journal of Morphology, 3(38), 731-736 
    • Čvorović, A., Kukić, F., Orr, R.M., & Dawes, J.J. (2020). Effectiveness of a short-term conditioning program to prepare firefighters for an occupationally specific competition- Pilot Study. Journal of Australian Strength and Conditioning. 28(2): 19-26 
    • Lockie, R.G., Beljic, A.*, Ducheny, S.C.*, Kammerer, J.D.*, & Dawes, J.J. (2020). Relationships between playing time and selected NBA combine test performance in Division I mid-major basketball players. International Journal of Exercise Science, 13(4), 583-596.  
    • Lockie, R.G., Dawes, J.J., Orr, R.M. & Dulla, J.M. (2020). Recruit fitness standards from a large law enforcement agency: Between-class comparisons, percentile rankings, and implications for physical training. Journal of Strength and Conditioning Research, 34, 934-941. 
    • Lockie, R.G., Hernandez, J.A.*, Moreno, M.R.*, Dulla, J.M., Dawes, J.J. & Orr, R.M. (2020). 2.4-km run and 20-m multistage fitness test relationships in law enforcement recruits after academy training. Journal of Strength and Conditioning Research, 34, 942-945. 
    • Johnson, Q.R.*, Goatcher, J.*, Diehl, C.*, Alvar, B., Lockie, R.G., Smith, D.B., Orr, R.M., & Dawes, J.J. (2020). Heart rate responsesduring simulated fire ground scenarios among full-time firefighters. International Journal of Exercise Science, 13(2), 374-382. 
    • Marins, E.F., Cabistany, L., Farias, C.B., Dawes, J.J., & Del Vecchio, F.B. (2020). Effects of personal protective equipment on the performance of federal highway policemen in physical fitness test. Journal of Strength and Conditioning Research, 34(1), 11-19.  
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