{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T23:14:28Z","timestamp":1785885268517,"version":"3.56.0"},"reference-count":49,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,3,22]],"date-time":"2025-03-22T00:00:00Z","timestamp":1742601600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JFMK"],"abstract":"<jats:p>Brazilian jiu-jitsu engagement has been found to positively impact psychological variables in children, adolescents, and adult athletes. Psychological variabilities have previously been shown among belt ranks in Brazilian jiu-jitsu athletes. Background\/Objectives: This study aimed to explore the differences in mental strength, resilience, grit, self-efficacy, self-control, aggression, life satisfaction, and mental health disorders among the Brazilian jiu-jitsu belt ranks. Methods: A sample of 420 Brazilian jiu-jitsu athletes (78.8% male), including 121 white belts, 118 blue belts, 78 purple belts, 46 brown belts, and 57 black belts, between 18 and 60 years of age, completed the Mental Strength Scale, Brief Resilience Scale, Grit Scale, General Self-Efficacy Scale, Brief Self-Control Scale, Brief Aggression Questionnaire, Satisfaction with Life Scale, and Mental Health Disorders Screening Instrument for Athletes. Results: Results showed that Brazilian jiu-jitsu black belts presented significantly higher mental strength, resilience, self-efficacy, self-control, life satisfaction, and lower mental health disorders than white belts. No significant differences were found between white and black belts in aggression (total, physical aggression, anger, verbal aggression, and hostility). Brazilian jiu-jitsu training experience positively correlated (small effect) with mental strength, resilience, grit, self-efficacy, self-control, physical and verbal aggression, and life satisfaction. Conclusions: In conclusion, the results are suggestive that Brazilian jiu-jitsu black belts are generally more likely to present higher mental strength, resilience, grit, self-efficacy, self-control, life satisfaction, and better mental health than white belts, with no differences in aggression. More experienced Brazilian jiu-jitsu athletes were more likely to present higher mental strength, resilience, grit, self-efficacy, self-control, physical and verbal aggression, and life satisfaction than less experienced athletes. Future studies are encouraged to investigate whether the effects found in the current study would remain after controlling for the athlete\u2019s age.<\/jats:p>","DOI":"10.3390\/jfmk10020100","type":"journal-article","created":{"date-parts":[[2025,3,24]],"date-time":"2025-03-24T04:48:18Z","timestamp":1742791698000},"page":"100","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Rank-Based Psychological Characteristics in Brazilian Jiu-Jitsu Athletes: Mental Strength, Resilience, Grit, Self-Efficacy, Self-Control, Aggression, Life Satisfaction, and Mental Health"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-9200-8965","authenticated-orcid":false,"given":"Leandro","family":"de Lorenco-Lima","sequence":"first","affiliation":[{"name":"Department of Psychology, Liberty University, Lynchburg, VA 24515, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stacey A.","family":"Gaines","sequence":"additional","affiliation":[{"name":"Department of Psychology, Liberty University, Lynchburg, VA 24515, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elisabeth M.","family":"Waterbury","sequence":"additional","affiliation":[{"name":"Department of Psychology, Liberty University, Lynchburg, VA 24515, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1186\/s40798-016-0069-5","article-title":"Physical and Physiological Profiles of Brazilian Jiu-Jitsu Athletes: A Systematic Review","volume":"3","author":"Andreato","year":"2017","journal-title":"Sports Med.-Open"},{"key":"ref_2","first-page":"119","article-title":"Capacity and Confidence: What Can Be Gleaned from the Link between Perceived and Actual Physical Ability in Brazilian Jiu-Jitsu Practitioners?","volume":"10","year":"2020","journal-title":"Martial Arts Stud."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Williams, F., and Smith, A. 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