Risk analysis is one of the main tools for preventing the occurrence of Work-Related Musculoskeletal Disorders. New methods of risk analysis should seek to be more agile and simplified, encouraging them to be widely applied in work environments. This paper aimed to develop a rapid tool for assessing the risk of developing Work-Related Musculoskeletal Disorders (WMSDs) arising from repetitive actions of the upper limbs, while using a thermographic camera to measure skin temperature variation. A workstation was developed in an environmentally controlled laboratory, representing the five levels of risk presented by the Occupational Repetitive Actions Index (OCRA) Index, which were performed by 32 participants for 20 min. each level. There was a significant change in forearm skin temperature at all risk levels (p < 0.001), with a positive linear correlation (r = 0.658 and p < 0.001), which led the authors to perform linear regression analysis for the forearm region. The Predicted OCRA Index calculation equation was successfully developed (R = 0.767 and R² = 0.588), while using as independent variables: air temperature and temperature variation of the forearm skin. The Predicted OCRA Index can be applied as a screening tool for large numbers of workers in the same company or sector, due to its speed of application and the determination of risk level, but it does not replace the original OCRA Index.

A team shared belief in its capability to organize and execute some actions required to achieve given performance level is referred as collective efficacy. Collective efficacy in sports appears to be dependent on the interactions and organized dynamics between the players within the team, their competences, including physical competence, organization, structure and strategies. It is directly related to team performance potential. In the present study we examined the changes of perceived collective efficacy among young basketball players and 10 to 17 years across a 4-month competitive season, accounting for variation by age group since youth sports are generally organized by competitive age groups. Based on the repeated measures across 4 months in the range of age observed, we explored the trends of perceived collective efficacy among this sample players. Sixty-five adolescent male basketball players aged 13,7 (9,5 to 17,3) years at baseline were considered. Collective Efficacy Questionnaire for Sports (CEQS) was used to assess players´ perception of collective efficacy. The adolescent basketball players had high CEQS scores. Except for persistence, all CEQS factors did not vary by age group. However, no distinct trend of differences between age group was present. The CEQS factors remained high after 4-months competitive season exposure, except for ability where there was a systematic decrease for players scores at end-season.  A negative trend of change was apparent for persistence, preparation and unity as players were closer to late adolescence years. The results in this study highlight the importance for coaches and practitioners to consider environment and context influence on young basketball players´ collective efficacy perception. A team shared belief in its capability to organize and execute some actions required to achieve given performance level is referred as collective efficacy. Collective efficacy in sports appears to be dependent on the interactions and organized dynamics between the players within the team, their competences, including physical competence, organization, structure and strategies. It is directly related to team performance potential. In the present study we examined the changes of perceived collective efficacy among young basketball players and 10 to 17 years across a 4-month competitive season, accounting for variation by age group since youth sports are generally organized by competitive age groups. Based on the repeated measures across 4 months in the range of age observed, we explored the trends of perceived collective efficacy among this sample players. Sixty-five adolescent male basketball players aged 13,7 (9,5 to 17,3) years at baseline were considered. Collective Efficacy Questionnaire for Sports (CEQS) was used to assess players´ perception of collective efficacy. The adolescent basketball players had high CEQS scores. Except for persistence, all CEQS factors did not vary by age group. However, no distinct trend of differences between age group was present. The CEQS factors remained high after 4-months competitive season exposure, except for ability where there was a systematic decrease for players scores at end-season.  A negative trend of change was apparent for persistence, preparation and unity as players were closer to late adolescence years. The results in this study highlight the importance for coaches and practitioners to consider environment and context influence on young basketball players´ collective efficacy perception.

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Artigo originAl p<0.01

A satisfação com a prática esportiva e suas respostas afetivas positivas dos atletas às experiências esportivas que desempenha um papel relevante para a continuidade ou descontinuidade dos jovens no esporte.

André Luiz de Almeida Soares (IC), Thiago José Leonardi (PG), Roberto Rodrigues Paes (PQ) Resumo Tendo em vista uma perspectiva pedagógica que contribua para o desenvolvimento integral dos jogadores de basquetebol, o processo de ensino-vivência-aprendizagem e treinamento deve ser organizado, sistematizado, aplicado e avaliado, de acordo com cada cenário, em cada modalidade, adequando-se aos objetivos propostos aos personagens em questão. O Jogo Livre com Conceitos apresenta-se enquanto proposta de ensino da modalidade, de forma a contribuir para o desenvolvimento dos praticantes da modalidade na tentativa de evitar problemas comuns no ensino do esporte, como a fragmentação de conteúdos e a especialização esportiva precoce. Acreditamos que o jogo livre com conceitos permite uma diversificada forma de ensinar, sem que haja a exclusão por características individuais, ensinando valores e princípios de jogo e de cidadania através do esporte.