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Jones, Margaret

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Dr. Margaret T. Jones
(she/her/hers)
PhD, University of Georgia
Professor
Center for Sport Management
Sport and Recreation Studies
Sport Management

Contact Information

Send email to Dr. Jones

Phone: (703) 993-3247
Fax: (703) 993-2025
Email: mjones15 (@gmu.edu)

George Mason University
Fairfax Campus
Krug Hall 211F
4400 University Dr.
MS 4D2
Fairfax, VA 22030

Profile

Dr. Jones earned a BA from the University of Tennessee (English), an MEd from the University of Houston (Exercise Science), a PhD from the University of Georgia (Exercise Physiology), and completed an NIH Postdoctoral Fellow at Cornell University (Physiology). She holds Fellow status in the American College of Sports Medicine and the National Strength and Conditioning Association (NSCA), and is an NSCA-Certified Strength and Conditioning Specialist. She served on the NSCA Board of Directors from 2017-2020, and was honored as the 2008 NSCA Educator of the Year. In 2014, Dr. Jones was awarded a George Mason University OSCAR Mentoring Excellence Award. The 2023 William J. Kraemer Outstanding Sports Scientist, she has authored many publications in the area of human performance and athlete health in peer-reviewed academic journals, and has presented regionally, nationally, and internationally. Dr. Jones participates in editorial and review activities for several journals, including Associate Editor-in-Chief, Strength and Conditioning Journal, and Senior Associate Editor, Journal of Strength and Conditioning Research. She was awarded the Journal of Strength and Conditioning Research Editorial Excellence Award in 2022. A Beck Foundation Faculty Fellow, Dr. Jones serves as the Director of the Patriot Performance Laboratory of the Frank Pettrone Center for Sports Performance at George Mason University.

Research Interests

Human Performance and Athlete Health

  • Athlete Load Monitoring
  • Musculoskeletal Strength and Power
  • Nutrition Practices and Dietary Habits
Recent Publications

Peer-reviewed Published Articles (2019-present):

  1. Brown, F.S.A., Fields, J.B., Jagim, A.R., King, E.L., Baker, R.E., Miller, A., and Jones, M.T. (2024) Relationship of individual athlete external load, session rating of perceived exertion, and athlete playing status across a collegiate women’s basketball season. Sports 12, 340. https://doi.org/10.3390/sports12120340
  2. ​Fields, J.B., Askow, A.T., Jones, M.T. and Jagim, A.R. (2024) Differences in body fat in athletes categorized by resting metabolic rate.  Applied Sciences  14, 9949. https://doi.org/10.3390/app14219949
  3. Kuhlman, N.M. Jones, M.T., Jagim, A.R., Magee, M.K., Wilcox, L., and Fields, J.B. (2024) Dietary intake, energy availability, and power in men collegiate gymnasts. Frontiers in Sports and Active Living Section: Sport and Exercise Nutrition DOI: 10.3389/fspor.2024.1448197 PMID: 39359485
  4. Jagim, A.R., Harty, P.S., Jones, M.T., Fields, J.B., Magee, M., Smith-Ryan, A.E., Luedke, J., and Kerksick, C.M. (2024) Fat-free mass index in sport: Normative profiles and applications for collegiate athletes. Journal of Strength and Conditioning Research 38(9): 1687-1693. PMID: 39074219
  5. King, E.L., Patwardhan, S., Bashatah, A., Magee, M., Jones, M.T., Qi Wei, Q., Sikdar, S., and Chitnis, P.V. (2024) Distributed wearable ultrasound sensors predict isometric ground reaction force. Sensors 24: 5023. PMID: 26417382
  6. Jagim, A.R., Luedke, J., Erickson, J.L., Fields, J.B., and Jones, M.T. (2024) Validation of bioelectrical impedance devices for the determination of body fat percentage in firefighters. Journal of Strength and Conditioning Research 38(8): e448-e453. PMID: 39072665
  7. Floersch, S., Vidden, C., Askow, A.T., Jones, M.T., Fields, J.B., Murphy, J., and Jagim, A.R. (2024) Seasonal changes in match demands and workload distribution in collegiate soccer following disruption from COVID-19 across two seasons. Journal of Strength and Conditioning Research 38(8): 1440-1446. PMID: 39072657
  8. Marqués-Jiménez, D., Calleja-González, J., Arratibel-Imaz, I, Jones, M.T., and Terrados, N. (2024) Effect of acute and residual match-induced fatigue on repeated sprint ability in soccer players. Science et Sports 39(1): 96-104. doi.org/10.1016/j.scispo.2023.01.007
  9. Merfeld, B., Rowley, M., Almonroeder, T., Luedke, J., Erickson, J.L., Jones, M.T., Fields, J.B., Jagim, A.R., and Szymanski, E. (2024) Examining changes in shoulder strength, lower body power, and body composition among collegiate baseball players after completion of a summer baseball league season. Journal of Functional Morphology and Kinesiology 9, 98. PMID: 38921634
  10. Fields, J.B., Jones, M.T., Kuhlman, N.M., Magee, M.K., Feit, A., and Jagim, A.R. (2024) Fat-free mass index in a large sample of collegiate American football athletes. International Journal of Exercise Science 17(4): 129-139. PMID: 38665859
  11. Brown, F.S.A., Fields, J.B., Jagim, A.R., Baker, R.E., and Jones, M.T. (2024) Analysis of in-season external load and sport performance in women’s collegiate basketball. Journal of Strength and Conditioning Research 38(2): 318-324. PMID: 37820260
  12. Magee, M.K., Fields, J.B., Jagim, A.R. and Jones, M.T. (2024) Fat-free mass index in a large sample of National Collegiate Athletic Association men and women athletes from a variety of sports. Journal of Strength and Conditioning Research 38(2): 311-317. PMID: 37815277
  13. Jagim, A.R., Tinsley, G., Opplinger, B., Horswill, C., Dobbs, W.C., Fields, J.B., and Jones, M.T. (2024) Collegiate women’s wrestling body fat percentage and minimum wrestling weight values: time for revisiting minimal body fat percent? Journal of the International Society of Sports Nutrition 21(1): 2304561. PMID: 38226601
  14. Fields, J.B., Kuhlman, N.M., Jagim, A.R., Dulak-sigler, C., and Jones, M.T. (2023) Analysis of accumulated workloads and performance testing across a collegiate women’s lacrosse season. Journal of Strength and Conditioning Research 37(11): 2213-2221. PMID: 37639657
  15. Askow, A.A., Jennings, W., Jagim, A.R., Fields, J.B., Beaudoin, R.G., Sanchez, G.M., Weeks, J.E, Oliver, J.M., and Jones, M.T. (2023) Athlete external load measures across a competitive season in high school basketball. Journal of Strength and Conditioning Research 37(11): 2206-2212. PMID: 37639668
  16. Fields, J.B., Magee, M.K., Jones, M.T., Askow, A.T., Camic, C.L, Luedke, J., and Jagim, A.R. (2023) The accuracy of nine resting metabolic rate prediction equations in men and women collegiate athletes. European Journal of Sport Science 10: 1973-1982. PMID: 36168819
  17. Jagim, A.R., Jones, M.T., Askow, A.T., Luedke, J., Erickson, J.L., Fields, J.B., and Kerksick, C.M. (2023) Sex differences in resting metabolic rate among athletes and association with body composition parameters: A follow-up investigation. Journal of Functional Morphology and Kinesiology 8(3),109. PMID: 37606404
  18.  Aziz, R., Jones, M.T., Jagim, A.R., Feit, M.K., Kuhlman, N., Crabill, T. and Fields, J.B. (2023) In-season match demands of men’s collegiate soccer: A comparison by half, position, match outcome, match location, and competition phase. International Journal of Strength and Conditioning 3(1). doi.org/10.47206/ijsc.v3i1.154
  19. Fields, J.B., Jagim, A.R., Kuhlman, N.M., Feit, M.K., and Jones, M.T. (2023) Comparison of match external loads across a men’s and women’s lacrosse season. Journal of Functional Morphology and Kinesiology 8, (1), 119. PMID: 37606414
  20. Magee, M.K., Jones, M.T., Fields, J.B., Kresta, J., Khurelbaatar, C., Dodge, C., Merfeld, B., Ambrosius, A., Carpenter, M., and Jagim, A.R. (2023) Body composition, energy availability, risk of eating disorder, and sport nutrition knowledge in young athletes. Nutrients 15, (6): 1502. PMID: 36986231
  21. Guthrie, B.M., King, E., Patwardhan, S., Wei, Q., Sikdar, S., Chitnis, P.V., and Jones, M.T. (2023) Relationships between surrogate measures of mechanical and psychophysiological load, patellar tendon adaptations, and neuromuscular performance in NCAA Division I men’s volleyball athletes. Frontiers in Sport and Active Living Section: Elite Sports and Performance Enhancement PMID: 36909358
  22. Lu, T., Jones, M.T., Yom, J. Ai Ishida, A., and White, J.B. (2023) Physiological and biomechanical responses to exercise on two different types of rowing ergometers in NCAA Division I oarswomen. European Journal of Applied Physiology 123(7), 1529-1541. PMID: 36929015
  23. Lust, C.A.C., Burns, J., Jones, M.T., Smith, S.B., Choi, S.H., Kirk, M., Gable, D.A., Oliver, J.M. and Ma, D.W.L. (2023) The dose response effect of docosahexaenoic acid in American football athletes. Medicine and Science in Sports and Exercise 55(5): 865-872. PMID: 36728325
  24. Kuhlman, N.K., Jones, M.T., Jagim, A.R., Feit, M.K., Aziz, R., Crabill, T., and Fields, J.B. (2023) Relationship between external loads, sRPE-Load, and self-reported soreness across a men’s collegiate soccer season. Biology of Sport 40(4), 1141-1150. PMID: 37867741
  25. Fields, J.B., Jones, M.T., Feit, M.K., and Jagim, A.R. (2023) External loads across a collegiate men’s lacrosse season. Journal of Strength and Conditioning Research 37(8): e455-e461. PMID: 36727683
  26. Burke, A.A., Guthrie, B.M., Magee, M., Miller, A.D., and Jones, M.T. (2023) Revisiting the assessment of strength, power and change of direction in collegiate American football athletes. Journal of Strength and Conditioning Research 37(8): 1623-1627. PMID: 36752757
  27. Jagim, A.R., Luedke, J.A., Dobbs, W., Almonroeder, T., Markert, A., Zapp, A., Askow, A.T., Kesler, R.M., Fields, J.B., Jones, M.T., and Erickson, J.L. (2023) Physiological demands of a self-paced firefighter air-management course and determination of work efficiency Journal of Functional Morphology and Kinesiology 8(1), 21. PMID: 36810505
  28. Calleja-Gonzalez, J., Mallo, J., Sampaio, J.E., Jones, M.T., Marques-Jimenez, D., Mielgo-Ayuso, J., Freitas, T.T., Alcaraz, P.E., Vilamitjana, J., Ibanez, S.J., Cuzzolin, F., Terrados, N., Bird, S., Zubillaga, A., Huyghe, T., Jukic, I., Calvo, A.L., Loturco, I., Delextrat, A., Schelling, X., Gomez-Ruano, M.A., Lopez-Laval, I., Cos, F., Vazquez-Guerrero, J., Conte, D., Velarde, A., Bores, A., Ferioli, D., Garcia, F., Peirau, X., Martin-Acero, R., Lago-Penas, C. (2023) A commentary of factors related to player availability and its influence on performance in elite team sports. Frontiers in Sports and Active Living: Elite Sports and Performance Enhancement PMID: 36726395
  29. McKay, A., Jones, M.T., and Gallo, S. (2023) Differences in cardiometabolic biomarkers between elementary school-age Latinx children with obesity vs. healthy weight. Southern Medical Journal 116(2), 188-194. DOI 10.14423/SMJ.0000000000001506
  30. Guthrie, B., Jagim, A.R., and Jones, M.T. (2023) Ready or not, here I come: A scoping review of methods used to assess player readiness via indicators neuromuscular function in football code athletes. Strength and Conditioning Journal 45(1), 93-110.
  31. Jagim, A.R., Tinsley, G.M., Merfeld, B.R., Ambrosius, A., Khurelbaatar, C., Dodge, C., Carpenter, M., Luedke, J., Erickson, J., Fields, J.B., and Jones, M.T. (2022) Validation of skinfold equations and alternative methods for the determination of fat-free mass in young athletes. Frontiers in Sport and Active Living Section: Elite Sports and Performance Enhancement. PMID: 37637224
  32. Merrigan, J.J., Jones, M.T., Malecek, J., Padecky, J., Omcirk, D., Xu, N., Peñailillo, L., and Tufano, J.J. (2022) Comparison of traditional and rest-redistribution sets on indirect markers of muscle damage following eccentric exercise. Journal of Strength and Conditioning Research 36(7), 1810-1818. PMID: 33021579
  33. Merrigan, J.J., Borth, J., Taber, C.B., Suchomel, T.J., and Jones, M.T. (2022) Application of accentuated eccentric loading to elicit acute and chronic velocity and power improvements: A narrative review. International Journal of Strength and Conditioning 2(1). doi.org/10.47206/ijsc.v2i1.80
  34. Merrigan, J.J., O’Toole, K.B., Wutzke, C.J., and Jones, M.T. (2022) A kinetic and kinematic analysis of various drop jump performances in Army Reserve Officer Training Corps Cadets. Journal of Strength and Conditioning Research 36(3), 738-746. PMID: 34132221
  35. Jagim, A.R., Fields, J., Magee, M.K., Kerksick, C.M., and Jones, M.T. (2022) Contributing factors to low energy availability in female athletes: A narrative review of energy availability, training demands, nutrition barriers, body image, and disordered eating. Nutrients 14(5), 986. PMID: 35267961
  36. Fields, J.B., Merrigan, J.J., Feit, M.K., and Jones, M.T. (2021) Practice versus game external load measures in starters and non-starters of a men’s collegiate soccer team. International Journal of Strength and Conditioning 1(1). doi.org/10.47206/ijsc.v1i1.76
  37. Jagim, A.R., Wright, G.A., Camic, C.L., Kisiolek, J.N., Luedke, J., Oliver, J.M., Fischer, K.M. and Jones, M.T. (2021) Relationship between training load and recovery in collegiate American football players during pre-season training. Journal of Science and Medicine in Football 5(4), 330-338. PMID: 35077303
  38. Dabbs, N.C., Espericueta, S., Bonilla, S., and Jones, M.T. (2021) The effects of whole-body vibration on fatigue in vertical jump performance and isometric mid-thigh pull measures. Vibration 4(4), 759-767.
  39. Fields, J.B., Merrigan, J.J., Gallo, S., White, J.B., and Jones, M.T. (2021) External and internal load measures during pre-season training in men collegiate soccer athletes. Journal of Strength and Conditioning Research 35(9), 2572-2578. PMID: 34431484
  40. Guthrie, B., Fields, J.B., Thompson, B., and Jones, M.T. (2021) Physical performance assessments of strength and power in women collegiate athletes. International Journal of Exercise Science 14(6), 984-993. PMID: 34567381
  41. Jagim, A.R., Fields, J.B., Magee, M., Kerksick, C., Luedke, J., Erickson, J., and Jones, M.T. (2021) The influence of sport nutrition knowledge on body composition and perceptions of dietary requirements in collegiate athletes. Nutrients 13(7), 2239. PMID: 34209814
  42. Fields, J.B., Lockard, B.L., Magee, M.K., and Jones, M.T. (2021) Morning versus evening short-term whey protein supplementation in collegiate athletes. Journal of Exercise and Nutrition 4(3), 13.
  43. Magee, M.K., White, J.B., Merrigan, J.J., and Jones, M.T. (2021) Does the multistage 20-m shuttle run test accurately predict VO2max in NCAA Division I women collegiate field hockey athletes? Sports 9(6), 75. PMID: 34073418
  44. Luk, H.Y., Jones, M.T., and Vingren, J.L. (2021) Effect of rest period configurations on systemic inflammatory response in resistance-trained women. Journal of Sports Sciences 39(13), 1504-1511. PMID: 33634732
  45. Merrigan, J.J., Tufano, J., and Jones, M.T. (2021) Potentiating effects of accentuated eccentric loading are dependent upon relative strength. Journal of Strength and Conditioning Research 35(5), 1208-1216. PMID: 33651736
  46. Fields, J.B., Lameira, D.M., Short, J.L., Merrigan, J.J., Gallo, S., White, J.B., and Jones, M.T. (2021) Relationship between external load and self-reported wellness measures across a men’s collegiate soccer pre-season. Journal of Strength and Conditioning Research 35(5), 1182-1186. PMID: 33677459
  47. Merrigan, J.J. and Jones, M.T. (2021) Acute inflammatory, cortisol, and soreness responses to supramaximal accentuated eccentric loading. Journal of Strength and Conditioning Research 35, (2S), S107-S113. PMID: 33666595
  48. Merrigan, J.J., Volgenau, K.M., McKay, A., Mehlenbeck, R., Jones, M.T., and Gallo, S. (2021) Bidirectional associations between physical activity and sleep in early-elementary age Latino children with obesity. Sports 9, (26), 1-6. PMID:33670086
  49. Merrigan, J.J., Tufano, J.J., Falzone, M., and Jones, M.T. (2021) Effectiveness of accentuated eccentric loading: Contingent on concentric load. International Journal of Sports Physiology and Performance 16 (1), 66-72. PMID: 33186894
  50. Magee, M.K., Lockard, B.L., Zabriskie, H.A., Schaefer, A.Q., Luedke, J.A., Erickson, J.L., Jones, M.T., and Jagim, A.J. (2020) Prevalence of low energy availability in collegiate women soccer athletes. Journal of Functional Morphology and Kinesiology 5 (96), 1-9. PMID: 33467311
  51. Merrigan, J.J., Jones, M.T., Padecky, J., Malecek, J., Omcirk, D., and Scott, B.R., and Tufano, J.J. (2020) Impact of rest-redistribution on fatigue during maximal eccentric knee extensions. Journal of Human Kinetics 74, 205-214. PMID: 33312288
  52. Merrigan, J.J., Dabbs, N.C., and Jones, M.T. (2020) Isometric mid-thigh pull kinetics: Sex differences and response to whole-body vibration. Journal of Strength and Conditioning Research 34(9), 2407-2411. PMID: 32865941
  53. Merrigan, J.J., Tufano, J.J., Fields, J.B., Oliver, J.M., and Jones, M.T. (2020) Rest redistribution does not alter hormone responses in resistance-trained women. Journal of Strength and Conditioning Research 34(7), 1867-1874. PMID: 32598121.
  54. Jagim, AR., Murphy, J., Shafer, A.Q., Askow, A.T., Luedke, J.A., Erickson, J.L., and Jones, M.T. (2020) Match demands of women’s collegiate soccer. Sports 8(6), 1-11. PMID: 32545603
  55. Fields, J.B., Esco, M.R., Merrigan, J.J., White, J.B., and Jones, M.T. (2020) Internal training load measures during a competitive season in collegiate women lacrosse athletes. International Journal of Exercise Science 13(4), 778-788. PMID: 32509129
  56. Fields, J.B., Gallo, S., Worswick, J.M., Busteed, D.R., and Jones, M.T. (2020) 25-Hydroxyvitamin D, vitamin D binding protein, bioavailable 25-Hydroxyvitamin D, and body composition in a diverse sample of women collegiate indoor athletes. Journal of Functional Morphology and Kinesiology 5(32), 1-9. PMID: 33467248
  57. Merrigan, J.J., Tufano, J.J., Oliver, J.M., White, J.B., Fields, J.B., and Jones, M.T. (2020) Reducing the loss of velocity and power in women athletes via rest redistribution. International Journal of Sports Physiology and Performance 15(2), 255-261. PMID: 31188704
  58. Calleja-Gonzalez, J., Marques-Jimenez, D., Jones, M.T., Huyghe, D.T., Navarro, F., Delextrat, A., Jukic, I., Ostojic, S., Sampaio, J., Schelling, X., Alcaraz, P., Sanchez-Bañuelos, F., Leibar, X., Mielgo-Ayuso, J., Terrados, N. (2020) What are we doing wrong when athletes report higher levels of fatigue from traveling than from training or competition? Frontiers in Psychology 11, 194. PMID: 32153454
  59. Merrigan, J.J., Gallo, S., Fields, J.B., Mehlenbeck, R., and Jones, M.T. (2020) Relationships among metabolic-risk, body fatness, and muscular fitness in young obese Latino children. International Journal of Exercise Science 13(3), 488-500. PMID: 32509118
  60. Sekel, N., Gallo, S., Fields, J., Jagim, A.R., Wagner, T., and Jones, M.T. (2020) The effects of cholecalciferol supplementation on vitamin D status among a diverse population of collegiate basketball athletes: A quasi-experimental trial. Nutrients 12(370), 1-13. PMID: 32023809
  61. Gallo, S., Jones, M.T., Doig, A.C., Kogan, K., Fields, J., Wonderlich, J., Hansen, A., Lacharite, K., and Mehlenbeck, R. (2020) Feasibility of a multidisciplinary and culturally adapted pediatric weight management program for Latino families: Results from the Vidas Activas y Familias Saludables Pilot Study. Journal of Nutrition Education and Behavior 52(1), 55-63. PMID: 31706793
  62. Fields, J.B., Payne, D.C., Gallo, S., Busteed, D., and Jones, M.T. (2019) Vitamin D status differs by sex, sport-season, and skin pigmentation among elite collegiate basketball players. Sports 7(239), 1-9. PMID: 31752086
  63. Jagim, A.R., Camic, C.L., Askow, A., Luedke, J., Erickson, J., Kerksick, C., Jones, M.T., and Oliver, J.M. (2019) Sex differences in resting metabolic rate among athletes. Journal of Strength and Conditioning Research 33(11), 3008-3014. PMID: 30199450
  64. Stone, J.D., Kreutzer, A., Mata, J.D., Nystrom, M.G., Jagim, A.R., Jones, M.T., and Oliver, J.M. (2019) Changes in creatine kinase and hormones over the course of an American football season. Journal of Strength and Conditioning Research 33(9), 2481-2487. PMID: 28394834
  65. Merrigan, J.J., Jones, M.T., and White, J.B. (2019) A comparison of compound set and traditional set resistance training in women: Changes in muscle strength, endurance, quantity, and architecture. Journal of Science in Sport and Exercise 1(3), 264-272. doi.org/10.1007/s42978-019-00030-8
  66. Calleja-González, J., Mielgo-Ayuso, J., Ostojic, S.M., Jones, M.T., Caparros, T., and Terrados, N. (2019) Evidence-based post-exercise recovery strategies in rugby: a narrative review. The Physician and Sportsmedicine 47(2), 137-147. PMID: 30369286
  67. Stone, J.D., King, A.C., Mata, J.D., Goto, S., Hannon, J., Garrison, J.C., Bothwell, J., Jagim, A.R., Jones, M.T., and Oliver, J.M. (2019) Joint-level analyses of the back squat with and without intra-set rest. International Journal of Sports Physiology and Performance 14(5), 583-589. PMID: 30427251
  68. Jones, M.T., Oliver, J.M., Delgado, J.C., Merrigan, J.J., Jagim, A.R., and Robison, C.E. (2019) Effect of acute complex training on upper body force and power in collegiate wrestlers. Journal of Strength and Conditioning Research 33(4), 902-909. PMID: 29470365
  69. Askow, A.T., Merrigan, J.J., Neddo, J.M., Oliver, J.M., Stone, J.D., Jagim, A.R, and Jones, M.T. (2019) Effect of strength on velocity and power during back squat exercise in resistance-trained men and women. Journal of Strength and Conditioning Research 33(1), 1-7. PMID: 30431534
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Other Courses Taught