Passion and Addiction in Aerobic, Anaerobic, and Mixed (CrossFit) Exercises
Vol.19,No.2(2025)
This study employed exercise dependence and four-phase models to investigate the relationship between passion for exercise and the risk of exercise addiction (REA) among practitioners of aerobic, anaerobic, and CrossFit exercises. Participants (N = 424; 60.8% female; mean age = 38.29 ± 9.71 years) were recruited from fitness centers and social media in Hungary. The sample included 234 CrossFit, 126 aerobic (e.g., running, cycling, swimming), and 64 anaerobic (bodybuilding) exercisers. Data were collected online on Qualtrics, which included demographic questions, the Exercise Addiction Inventory-3, and the Passion Scale-8. CrossFit participants exhibited the highest exercise frequency and intensity, with a greater prevalence of REA (25.2%) compared to the anaerobic (15.6%) and aerobic (14.3%) groups. CrossFitters also scored higher on salience, withdrawal symptoms, and passion. However, group differences in absolute REA scores vanished after controlling for passion and exercise characteristics. Gender differences emerged, with females showing a stronger affective connection to exercise and higher withdrawal symptoms. Passion was strongly correlated with REA (r = 0.55) and accounted for 28% of the variance in it. Further research is needed to distinguish between passion-driven exercise and addiction.
exercise dependence; exercise intensity; gender; physical activity; training
Adam Bujang, M., Sa’at, N., & Tg Abu Bakar Sidik, T. M. I. (2022). Determination of minimum sample size requirement for multiple linear regression and analysis of covariance based on experimental and non-experimental studies. Epidemiology, Biostatistics, and Public Health, 14(3). https://doi.org/10.2427/12117
Adams, J., & Kirkby, R. J. (1998). Exercise dependence: A review of its manifestation, assessment, and etiology. Psychology, Health & Medicine, 7(4), 405–419. https://doi.org/10.1080/15438629809512532
Árok, P., Morvay-Sey, K., Vujić, A., & Szabo, A. (2024). Psychometric properties of the Hungarian Passion Scale-8 (PS-8-HU) in physically active and inactive adults. Perceptual and Motor Skills, 132(2), 243-26. https://doi.org/10.1177/00315125241296611
Borg, G. A. V. (1982). Psychophysical bases of perceived exertion. Medicine & Science in Sports & Exercise, 14(5), 377-381. https://doi.org/1.1249/00005768-198205000-00012
Boutcher, S. H. (2011). High-intensity intermittent exercise and fat loss. Journal of Obesity, 2011(1) Article 868305, 1–10. https://doi.org/10.1155/2011/868305
Bureau, A., Blom, L. C., Bolin, J. E., & Nagelkirk, P. R. (2019). Passion for Exercise: Passion’s Relationship to General Fitness Indicators and Exercise Addiction. International Journal of Exercise Science, 12(5), 122–135. https://doi.org/10.70252/zrwi2865
Claudino, J. G., Gabbett, T. J., Bourgeois, F., Souza, H. D. S., Miranda, R. C., Mezêncio, B., ... & Serrão, J. C. (2018). CrossFit overview: systematic review and meta-analysis. Sports medicine-open, 4, 1-14. https://doi.org/10.1186/s40798-018-0124-5.
Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). New York: Routledge. https://doi.org/10.4324/9780203771587
Dawson, M. C. (2015). CrossFit: Fitness cult or reinventive institution? International Review for the Sociology of Sport, 52(3), 361–379. https://doi.org/10.1177/1012690215591793
de la Vega, R., Almendros, L. J., Barquín, R. R., Boros, S., Demetrovics, Z., & Szabo, A. (2020). Exercise addiction during the COVID-19 pandemic: An international study confirming the need for considering passion and perfectionism. International Journal of Mental Health and Addiction, 20(2), 1159–117. https://doi.org/1.1007/s11469-020-00433-7
Di Raimondo, D., Rizzo, G., Musiari, G., Tuttolomondo, A., & Pinto, A. (2020). Role of regular physical activity in neuroprotection against acute ischemia. International Journal of Molecular Sciences, 21(23), 9086. https://doi.org/10.3390/ijms21239086
Dominski, F. H., Siqueira, T. C., Andrade, A., & Buonanno, G. (2020). Mental health benefits of CrossFit training: A systematic review. Journal of Sports Science & Medicine, 19(4), 562-570. https://doi.org/10.1007/s11332-020-00685-9.
Dominski, F. H., Tibana, R. A., & Andrade, A. (2022). “Functional Fitness Training”, CrossFit, HIMT, or HIFT: What is the preferable terminology? Frontiers in Sports and Active Living, 4, Article 882195. https://doi.org/10.3389/fspor.2022.882195
Fisker, F. Y., Kildegaard, S., Thygesen, M., Grosen, K., & Pfeiffer‐Jensen, M. (2017). Acute tendon changes in intense CrossFit workout: an observational cohort study. Scandinavian Journal of Medicine & Science in Sports, 27(11), 1258-1262. https://doi.org/10.1111/sms.12781
Freimuth, M., Moniz, S., & Kim, S. R. (2011). Clarifying exercise addiction: Differential diagnosis, co-occurring disorders, and phases of addiction. International Journal of Environmental Research and Public Health, 8(10), 4069–4081. https://doi.org/10.3390/ijerph8104069
Giannaki, C. D., Sakkas, G. K., Hadjigeorgiou, G. M., Manconi, M., & Bargiotas, P. (2024). Unfolding the role of exercise in the management of sleep disorders. European Journal of Applied Physiology, 124(9), 2547–2560. https://doi.org/10.1007/s00421-024-05556-6
Glassman, G. (2002). “Why Fitness”. CrossFit Journal, 1(3), 1–11. Retrieved March 24, 2025, from: https://media.crossfit.com/library/free/pdf/23_04_why_fitness.pdf
Goodman, A. (1990). Addiction: definition and implications. British Journal of Addiction, 85(11), 1403–1408. https://doi.org/10.1111/j.1360-0443.1990.tb01620.
Granziol, U., Griffiths, M. D., Zou, L., Yang, P., Herschel, H. K., Junker, A., Akimoto, T., Stoll, O., Alpay, M., Aydın, Z., Zandonai, T., Di Lodovico, L., Lichtenstein, M. B., Trott, M., Portman, R. M., Schipfer, M., Cook, B., Cerea, S., Egorov, A. Y., … Szabo, A. (2023). The Expanded Exercise Addiction Inventory (EAI-3): Towards reliable and international screening of exercise-related dysfunction. International Journal of Mental Health and Addiction, 22(6), 3559–3585. https://doi.org/10.1007/s11469-023-01066-2
Graves, B. S., Hall, M. E., Dias-Karch, C., Haischer, M. H., & Apter, C. (2021). Gender differences in perceived stress and coping among college students. PLOS ONE, 16(8), Article e0255634. https://doi.org/10.1371/journal.pone.0255634
Griffiths, M. (2005). A ‘components’ model of addiction within a biopsychosocial framework. Journal of Substance Use, 10(4), 191–197. https://doi.org/10.1080/14659890500114359
Guiney, H., & Machado, L. (2012). Benefits of regular aerobic exercise for executive functioning in healthy populations. Psychonomic Bulletin & Review, 20(1), 73–86. https://doi.org/10.3758/s13423-012-0345-4
Hausenblas, H. A., & Symons Downs, D. (2002). Exercise dependence: a systematic review. Psychology of Sport and Exercise, 3(2), 89–123. https://doi.org/10.1016/s1469-0292(00)00015-7
Hejtmanek, K. R. (2025). The Cult of CrossFit: Christianity and the American Exercise Phenomenon. New York: New York University Press.
IBM Corp. (2021). IBM SPSS Statistics for Windows, Version 28.0. IBM Corp.
Jazaieri, H., Goldin, P. R., Werner, K., Ziv, M., & Gross, J. J. (2012). A randomized trial of MBSR versus aerobic exercise for social anxiety disorder. Journal of Clinical Psychology, 68(7), 715-731. https://doi.org/10.1002/jclp.21863
Kovacsik, R., Griffiths, M. D., Pontes, H. M., Soós, I., de la Vega, R., Ruíz-Barquín, R., Demetrovics, Z., & Szabo, A. (2018). The role of passion in exercise addiction, exercise volume, and exercise intensity in long-term exercisers. International Journal of Mental Health and Addiction, 17(6), 1389–1400. https://doi.org/10.1007/s11469-018-9880-1
Król, T., Wojtyna, E., Hyla, M., Michalik, P., & Michalski, T. (2022). The dark side of sports training. Self-esteem, narcissism and exercise addiction in women’s CrossFit training. European Review of Applied Psychology, 72(5), 100814. https://doi.org/10.1016/j.erap.2022.100814
Laynes, I. A., Fagundes, M. G., Barbosa, G. M., de Souza, M. C., & Lombardi Júnior, I. (2022). Exercise dependence, body dysmorphia, and anxiety in CrossFit practitioners: A cross-sectional study. Journal of Bodywork and Movement Therapies, 32, 77–81. https://doi.org/10.1016/j.jbmt.2022.04.013
Lichtenstein, M. B., & Jensen, T. T. (2016). Exercise addiction in CrossFit: Prevalence and psychometric properties of the Exercise Addiction Inventory. Addictive Behaviors Reports, 3, 33–37. https://doi.org/10.1016/j.abrep.2016.02.002
Marsh, H. W., Vallerand, R. J., Lafrenière, M.-A. K., Parker, P., Morin, A. J. S., Carbonneau, N., Jowett, S., Bureau, J. S., Fernet, C., Guay, F., Salah Abduljabbar, A., & Paquet, Y. (2013). Passion: Does one scale fit all? Construct validity of two-factor passion scale and psychometric invariance over different activities and languages. Psychological Assessment, 25(3), 796–809. https://doi.org/10.1037/a0032573
Matthews, M. J., Kanungo, S., Baker, R. J., & Kenter, K. (2024). Exercise physiology: A review of established concepts and current questions. Physiologia, 4(2), 202–212. https://doi.org/10.3390/physiologia4020011
Mavrandrea, P., & Gonidakis, F. (2022). Exercise dependence and orthorexia nervosa in Crossfit: exploring the role of perfectionism. Current Psychology, 42(29), 25151–25159. https://doi.org/10.1007/s12144-022-03585-y
Moscatelli, F., Messina, G., Polito, R., Porro, C., Monda, V., Monda, M., ... & Valenzano, A. (2023). Aerobic and anaerobic effect of CrossFit training: a narrative review. Sport Mont, 21(1), 123-128. https://doi.org/10.26773/smj.230220
Norman, G. (2010). Likert scales, levels of measurement, and the “laws” of statistics. Advances in Health Sciences Education, 15(5), 625–632. https://doi.org/10.1007/s10459-010-9222-y
Olave, L., Estévez, A., Momeñe, J., Muñoz-Navarro, R., Gómez-Romero, M. J., Boticario, M. J., & Iruarrizaga, I. (2021). Exercise addiction and muscle dysmorphia: The role of emotional dependence and attachment. Frontiers in Psychology, Article 12. https://doi.org/10.3389/fpsyg.2021.681808
Patel, H., Alkhawam, H., Madanieh, R., Shah, N., Kosmas, C. E., & Vittorio, T. J. (2017). Aerobic vs anaerobic exercise training effects on the cardiovascular system. World Journal of Cardiology, 9(2), 134-138. https://doi.org/10.4330/wjc.v9.i2.134
Schellenberg, B. J. I., Verner-Filion, J., Gaudreau, P., & Mbabaali, S. (2021). The two dimensions of passion for sport: A new look using a quadripartite approach. Journal of Sport and Exercise Psychology, 43(6), 459-476. https://doi.org/10.31234/osf.io/u42yr
Sigmundsson, H., Haga, M., & Hermundsdottir, F. (2020). The passion scale: Aspects of reliability and validity of a new 8-item scale assessing passion. New Ideas in Psychology, 56, Article 100745. https://doi.org/10.1016/j.newideapsych.2019.06.001
Sigmundsson, H., & Leversen, J. S. R. (2024). Exploring gender differences in the relations between passion, grit, and flow. Acta Psychologica, 251, 104551. https://doi.org/10.1016/j.actpsy.2024.104551
Specter, S. E., & Wiss, D. A. (2014). Muscle dysmorphia: Where body image obsession, compulsive exercise, disordered eating, and substance abuse intersect in susceptible males. In Eating disorders, addictions and substance use disorders: Research, clinical and treatment perspectives (pp. 439-457). Berlin, Heidelberg: Springer Berlin Heidelberg.
Sprey, J. W., Ferreira, T., de Lima, M. V., Duarte Jr, A., Jorge, P. B., & Santili, C. (2016). An epidemiological profile of CrossFit athletes in Brazil. Orthopedic Journal of Sports Medicine, 4(8), 2325967116663706. https://doi.org/10.1177/2325967116663706.
Stea, J. N. (2020). Drug addiction vs. Drug dependence. Psychology Today. March 6, 2020. Retrieved March 24, 2025, from: https://www.psychologytoday.com/us/blog/writing-integrity/202003/drug-addiction-vs-drug-dependence
Szabo, A., Árok, P., Vujić, A., Morvay-Sey, K., & Granziol, U. (2024). Exercise Addiction Inventory-3 (EAI-3): Psychometric properties of the Hungarian version. Mentálhigiéné és Pszichoszomatika, 25(3), 203-216. https://doi.org/10.1556/0406.2024.00064
Szabo, A., & Demetrovics, Z. (2022). Passion and addiction in sports and exercise. New York: Routledge.
Szabo, A., de la Vega, R., Kovácsik, R., Jiménez Almendros, L., Ruíz-Barquín, R., Demetrovics, Z., Boros, S., & Köteles, F. (2022). Dimensions of passion and their relationship to the risk of exercise addiction: Cultural and gender differences. Addictive Behaviors Reports, 16, 100451. https://doi.org/10.1016/j.abrep.2022.100451
Szabo, A., & Kovacsik, R. (2019). When passion appears, exercise addiction disappears. Swiss Journal of Psychology. 78(3-4), 137-142. https://doi.org/10.1024/1421-0185/a000228
Tahira, S. (2023). The association between physical activity and cancer prevention, recovery, and recurrence: A narrative review. Health Nexus, 1(4), 54–66. https://doi.org/10.61838/kman.hn.1.4.7
Tabachnick, B. G., & Fidell, L. S. (2007). Experimental designs using ANOVA (Vol. 724). Belmont, CA: Thomson/Brooks/Cole.
Thomas, A. G., Dennis, A., Bandettini, P. A., & Johansen-Berg, H. (2012). The effects of aerobic activity on brain structure. Frontiers in Psychology, 3, Article 86. https://doi.org/10.3389/fpsyg.2012.00086
Till, C., & Ibrahim, J. (2024). CrossFit, community, and identity: A gemeinschaft in a liquid modern world?. Sociological Research Online, 30(1), 243-259. https://doi.org/10.1177/13607804241258626
Vallerand, R. J. (2008). On the psychology of passion: In search of what makes people’s lives most worth living. Canadian Psychology / Psychologie Canadienne, 49(1), 1–13. https://doi.org/10.1037/0708-5591.49.1.1
Westcott, W. L. (2012). Resistance training is medicine: Effects of strength training on health. Current Sports Medicine Reports, 11(4), 209–216.

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Copyright © 2025 Pálma Árok, Kata Morvay Sey, Angéla Somogyi, Celal Bulgay, Roberto Ruíz-Barquín, Ricardo De La Vega, Attila Szabo