Objective: This study investigated the association between body dissatisfaction (BD), addiction to exercise and risk behaviors to eating disorders (EDs) among Brazilian exercise practitioners, besides comparing the variables according to sex, age group and modality. Methods: Participants were 60 exercice practitioners of fitness (n = 44) and crossfit (n = 16), with mean age of 26.58 ± 7.76 years. Data collection was conducted through Eating Attitudes Test-26 (EAT-26), Diagnosis of Orthorexia Questionnaire (ORTO-15), Body Shape Questionnaire (BSQ) and Scale of Dedication to Exercise (SDE). Data analysis was conducted through Kolmogorov-Smirnov and independent t tests, Pearson correlation, and Path Analysis (p < .05). Results: Main results showed the association between BD, addiction to exercise and risk behaviour for EDs. Further, individuals dissatisfied with their bodies showed higher level of addiction to exercise and risk behavior for EDs. Furthermore, women showed higher presence of BD than men, and fitness participants reported higher presence of addiction to exercise than crossfit practitioners. Conclusions: This study revealed that BD seems to be a determinant factor for risk behavior for ED's and addiction to exercise among fitness and crossfit particpants.

This research adapted the Life Skills Scale for Sport (LSSS) into Portuguese and provided evidence for its construct validity. Study 1 included four translators and five academics who developed a Portuguese version of the LSSS (P-LSSS). During this study, evidence for the content and substantive aspects of construct validity was provided using an expert panel and 25 sports participants. Study 2 included 413 participants that completed the P-LSSS. Within this study, evidence for the structural aspect of construct validity was provided via factor analyses. Study 3 included 134 participants who completed the P-LSSS and a measure of motivation. This study provided evidence for the external aspect of construct validity, with results showing more self-determined motivation had positive relationships with participant's life skills development.

Este estudio transversal verificó la asociación entre el perfeccionismo y la ansiedad precompetitiva entre los jóvenes atletas. Los participantes fueron 177 niños y niñas, que respondieron a la Escala Multidimensional de Perfeccionismo Deportivo-2 (SMPS-2) y a la Escala de Ansiedad Deportiva-2 (SAS-2). El análisis de los datos se llevó a cabo a través de la prueba de Kolmogorov-Smirnov, la "U" de Mann-Whitney, la correlación de Spearman y el análisis de la trayectoria (p<0,05). Los principales resultados fueron que los chicos presentaron un mayor puntaje de estándares personales/organización y se sienten más presionados por los padres, mientras que las chicas sienten más ansiedad somática y se preocupan más por los juegos. El Análisis de Caminos reveló que los esfuerzos perfeccionistas (PS) se asocian con la reducción de la ansiedad cognitiva/somática, especialmente entre los chicos, mientras que las preocupaciones perfeccionistas (PC) se asocian positivamente con la ansiedad cognitiva/somática en ambos sexos. Estas conclusiones muestran que los Esfuerzos Perfeccionistas parecen ser un factor de intervención para la reducción de los síntomas de la ansiedad cognitiva y somática, mientras que los Esfuerzos Perfeccionistas pueden intensificar los síntomas de la ansiedad somática y cognitiva entre los jóvenes atletas, especialmente entre los varones. This cross-sectional study verified the association between perfectionism and pre-competitive anxiety among young athletes. Participants were 177 boys and girls, who responded the Sport Multidimensional Perfectionism Scale-2 (SMPS-2) and Sports Anxiety Scale-2 (SAS-2). Data analysis was conducted through Kolmogorov-Smirnov test, “U” of Mann-Whitney, Spearman’s correlation and Path Analysis (p<0.05). The main results were that boys presented higher score of personal standards/organization and feel more pressured by parents, while the girls feel more somatic anxiety and care more about the games. Path Analysis revealed that perfectionistic strivings (PS) are associated with the reduction of cognitive/somatic anxiety, especially among boys, while perfectionistic concerns (PC) are positively associated with cognitive/somatic anxiety in both sexes. These findings show that PS seems to be an intervening factor for the reduction of the symptoms of cognitive and somatic anxiety, while PC may intensify the symptoms of somatic and cognitive anxiety among youth athletes, especially among boys. Este estudo transversal verificou a associação entre o perfeccionismo e a ansiedade pré-competitiva entre jovens atletas. Os participantes foram 177 meninos e meninas, que responderam à Escala de Perfeccionismo Multidimensional Esportivo 2 (SMPS-2) e à Escala de Ansiedade Esportiva 2 (SAS-2). A análise dos dados foi realizada através do teste Kolmogorov-Smirnov, "U" de Mann-Whitney, correlação de Spearman e Análise de Caminhos (p<0,05). Os principais resultados foram que os meninos apresentaram maior pontuação de padrões/organização pessoal e se sentem mais pressionados pelos pais, enquanto as meninas sentem mais ansiedade somática e se preocupam mais com os jogos. A Análise de Caminhos revelou que os esforços perfeccionistas (PS) estão associados à redução da ansiedade cognitiva/somática, especialmente entre os meninos, enquanto as preocupações perfeccionistas (PC) estão positivamente associadas à ansiedade cognitiva/somática em ambos os sexos. Esses achados mostram que o PS parece ser um fator interveniente para a redução dos sintomas de ansiedade cognitiva e somática, enquanto o PC pode intensificar os sintomas de ansiedade somática e cognitiva entre os jovens atletas, especialmente entre os meninos.

Underground operation is a complex mining method where safety, stability, and ore recovery issues, among other factors, could be an obstacle to operations. In most cases, a simple review of the site could help engineers to understand and solve the problems. To create this overview, many types of images captured were considered. The non-entry mining method used at Cuiabá mine does not allow people to enter the stopes after blasting. The only way to obtain images after blasting is by using drones or other unmanned aerial vehicles (UAVs) fitted with cameras. The difficulties for this type of project include lighting, high-definition image capture, and access. Remote access in areas mined by the sublevel method at the Cuiabá mine is only possible with a UAV that is equipped with technology that can film with effective illumination. In addition, the equipment should be able to fly without the aid of GPS, fly at variable low speed to withstand small shocks with the rock wall and support elements, and often fly without visual contact with the pilot. Furthermore, the UAV controls must be easy enough for mine site employees to use with limited training and knowledge of aeronautics. For this purpose, a hybrid equipment was designed, using a helium gas filled balloon, with remote controlled quadcopter propellers, powerful LED lighting, rechargeable batteries, remote controlled cameras, image stabiliser, and radio frequency transmitters for control and image visualisation. A number of other solutions have been customised in the device to avoid problems inherent in mine operation. In countless trails, the UAV presented images that helped the local team change projects, reconsider pillar sizes, find ore trapped inside the stopes, and identify other important situations allowing an increase in safety and production.

This study investigated the development of life skills of 71 adolescents who practice individual sports, with a mean age of 14.54 ± 1.27 years. The instruments used were the Life Skills Scale for Sport (P-LSSS) and a sociodemographic questionnaire. Data analysis was conducted using the Kolmogorov-Smirnov tests, independent t, MANOVA and Pearson correlation (p <0.05). The results showed that the practitioners with the longest duration of practice had a higher score in the dimensions of teamwork (p = .010), goal setting (p = .018), leadership (p = .026) and communication (p =. 006) when compared to practitioners with less practice time. Fight practitioners had a lower time control score (p = .029) compared to athletics and swimming practitioners. There was a positive correlation between practice time and teamwork (r = .28), goal setting (r = .29) and communication (r = .32). It was concluded that the time of practice is associated with the development of life skills in adolescents.