Adolescence is an important developmental period for executive function as well as establishing lifelong health habits like diet and exercise. However, connections between exercise, executive function and dietary behaviors have not yet been adequately studied in adolescents, especially in terms of exercise duration. This research seeks to establish how 30 versus 60 minutes of exercise affects the association between executive function, calorie consumption and food-specific inhibition. The current research uses a within-participant design and linear mixed modeling to test the impact of exercise bout duration and executive function on calorie consumption and food-specific inhibition (food Go/No-Go accuracy and reaction time). This paper concludes that for adolescents, there may be a small impact of EF on dietary behaviors. It also concludes that 30 versus 60 minutes of non-cognitively demanding exercise (i.e., treadmill running) does not affect these associations in meaningful ways. Overall, the practical advantages of 30 minutes versus 60 minutes of exercise may make this a better recommendation for teens, but additional research on the impact of exercise is needed to inform these recommendations.

Made available in DSpace on 2016-04-28T20:40:13Z (GMT). No. of bitstreams: 1 Marciela Henckel.pdf: 922749 bytes, checksum: 5c28328e295690229ba6af3ff5ac9196 (MD5) Previous issue date: 2009-10-02 / Fundação de Amparo a Pesquisa do Estado de São Paulo / The objective of this thesis is to describe research being done on adult male impotence. Clinical situations with manifestations of erectile dysfunction, which lead one to conceive of a psychopathology of impotence, allow an approach with several different perspectives. This research is being carried out from a psychoanalytic perspective and is being developed within the field of fundamental psychopathology. The text has five chapters. First we present a methodology based on the clinical method, where we describe an investigation which began with masters work and a masters degree, and moved on to the area of doctoral studies. This historical path was possible due to the enigmas that the clinical work produced, permitting articulation between aspects that originally consisted of inhibition in an individual s early childhood and later developed into impotence in adult life. The chapter on psychic and sexual impotence in men is comprised of discussions of clinical cases. The situations related to treatment led to formulations on the nature of inhibition in each case. We thus conceived that there is both a specific and a generalized inhibition, as developed by Freud when dealing with this notion. In terms of specific inhibition, desire is blocked, whereas, in generalized inhibition, the subject's capacity to desire is put into doubt. This distinction would seem to be essential for listening and conducting treatment in cases where the disappearance of sexual desire leads one to recognize the existence of psychic suffering / A proposta deste trabalho é apresentar os desdobramentos de uma pesquisa sobre impotência sexual masculina. Situações clínicas com manifestação de uma disfunção sexual nos homens, as quais nos sugerem pensar numa psicopatologia da impotência, permitem uma abordagem sob diferentes perspectivas. Esta pesquisa se desenvolve desde uma perspectiva psicanalítica e está circunscrita pelo campo da psicopatologia fundamental. O texto está composto por cinco capítulos. No primeiro deles nos dedicamos à apresentação da metodologia baseada no método clínico, onde percorremos os caminhos de uma investigação que teve origem no mestrado, chegando à situação problemática do doutorado. Tal percurso foi possível realizar pelos enigmas que a clínica produziu permitindo uma articulação entre o que, num primeiro momento, a inibição na infância interrogava com o que, num segundo momento, entendemos como impotência no adulto. Os casos clínicos compõem o capítulo sobre impotência psíquica e sexualidade masculina, sendo que tais situações de tratamento conduziram às formulações sobre a natureza da inibição em cada uma delas. Foi assim que pensamos na inibição específica e na inibição generalizada, influenciada pelas formulações freudianas sobre tal noção. Na primeira o desejo se encontra impedido, enquanto na segunda a condição desejante do sujeito fica colocada em questão. Tal distinção nos parece fundamental para a escuta e condução de tratamentos nos quais o desaparecimento do desejo sexual permite reconhecer a existência de um sofrimento psíquico