RT Journal Article T1 Impact of the Mental Toughness Training Circle on the psychological aspects of athletes in situational sports: a pilot experiment. A1 Putra, Miftah Fariz Prima A1 Sutoro, Sutoro A1 Sinaga, Evi A1 Hidayat, Rodhi Rusdianto A1 Wanena, Tery A1 Wandik, Yos A1 Ridwan, Mochamad A1 Destriana, Destriana A1 Jannah, Miftakhul A1 Priambodo, Anung A1 Juriana, Juriana A1 Tahki, Kurnia A1 Setiawan, Edi A1 Gil-Espinosa, Francisco Javier K1 Deportes - Aspectos psicológicos AB Background and purposeThis study aims to evaluate the effect of providing Mental Toughness Training Circle mental training on athletes' mental toughness, performance, religiosity, anxiety, satisfaction, and happiness in life. Material and methodsThe randomized experimental design was used to evaluate Mental Toughness Training Circle. A total of 31 college-level athletes were involved and divided into two groups. Six important constructs related to athletes' psychological aspects, including mental toughness, performance, religiosity, anxiety, satisfaction, and athlete happiness are measured using the Mental Toughness Inventory, Self-Assessment of Athletics Performance, Spirituality in Sports Test, Sports Anxiety Scale-2, Social Validation Questionnaire, and Satisfaction with Life Scale. ResultsThe research findings prove that the Mental Toughness Training Circle mental training program has a significant effect on athletes' mental toughness, performance, anxiety, religiosity, satisfaction, and life happiness. Apart from that, this study also shows that the application of Mental Toughness Training Circle can increase positive emotional dimensions (mental toughness, performance, religiosity, satisfaction, and happiness) and reduce negative emotions (anxiety) in athletes. ConclusionsThe implications of this study show that Mental Toughness Training Circle can be used by athletic trainers and mental coaches to improve the quality of athletes, especially in psychological or mental aspects. PB HS Skovoroda Kharkiv National Pedagogical University (Ucrania) YR 2025 FD 2025-09-19 LK https://hdl.handle.net/10630/40475 UL https://hdl.handle.net/10630/40475 LA eng NO Putra MFP, Sutoro S, Sinaga E, Hidayat RR, Wanena T, Wandik Y, Ridwan M, Destriana D, Jannah M, Priambodo A, Juriana J, Tahki K, Setiawan E, Gil-Espinosa FJ. Impact of the mental toughness training circle on the psychological aspects of athletes in situational sports: a pilot experiment. Health, Sport, Rehabilitation. 2025;11(3):43-63. https://doi.org/10.58962/HSR.2025.11.3.43-63 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026