Le Sens Communautaire est important pour le bien-être et le développement social positif des adolescents (Pretty, 2002 ; Cicognani et al., 2006; 2012). Cependant, peu d'études ont fourni des informations significatives sur les mécanismes qui peuvent conduire à la construction d'une communauté dans le sport (Warner, 2011). L'objectif de cette thèse est de contribuer à la définition d'une communauté sportive, en examinant les mécanismes sous-jacents à la formation d'un Sens Communautaire dans des contextes sportifs à l'adolescence. Pour cela, un premier chapitre présente une revue de littérature sur le Sens Communautaire et un deuxième chapitre examine la littérature sur le sens communautaire sportif, et la participation sportive à l'adolescence. Par la suite deux axes de recherches sont proposés. Le premier axe comprend deux études qualitatives. Les résultats de ces études ont révélé que la communauté sportive comprend en particulier, les parents, l'entraineur et les pairs sportifs. Il émerge une difficulté pour ces jeunes athlètes à maintenir des relations avec des pairs non sportifs. Le deuxième axe comprend deux études quantitatives. La première étude a porté sur la validation du questionnaire du Sens Communautaire Sportif à l'Adolescence (SCSA), en langue française et italienne. La seconde étude a porté sur la compréhension des processus de ce SCSA en mettant en évidence ses relations avec le climat perçu des parents, de l'entraineur, des pairs non-sportifs, et de l'engagement sportif. Les résultats ont montré qu'à l'adolescence, le SCSA influence de manière significative l'engagement, et que la relation entre le climat perçu des pairs non-sportifs et l'engagement sportif est médié par le SCSA / The Sense of Community is important for the well-being and positive social development of adolescents (Pretty, 2002; Cicognani et al., 2006, 2012). However, a few studies have provided significant information on the mechanisms that can lead to the construction of a community in sport (Warner, 2011). The objective of this thesis is to contribute to the definition of a sport community, examining the mechanisms underlying the formation of Sense Community in sport contexts in adolescence. For this, the first chapter presents a review of literature about Sense of Community and the second chapter examines the literature on the Sense of Community in Sport and sports participation in adolescence. Subsequently two lines of research are proposed. The first line consists of two qualitative studies. The results of these studies revealed that the sport community includes in particular parents, peers and coach sports. There emerges a challenge for these young athletes to maintain relationships with nonathlete peers. The second line comprises two quantitative studies. The first study focused on the validation of the questionnaire Adolescents Sense Community in Sport (SCSA), in French and Italian. The second study focused on understanding the processes of SCSA and its relationship with parents, coach, peer non-athletes climate perceived and sport involvement. The results showed that during adolescence, the SCSA significantly influences the commitment, and the relationship between peer non-athletes climate perceived and sporting commitment is mediated by SCSA

This investigation examined the relationships between parental involvement, peer-initiated climates, and perfectionism to goal orientation as well as children's enjoyment and the intention to continue playing sport in youth sport. Participants were 188 athletes, 100 boys (M = 12.06, SD = 1.06) and 88 girls (M = 12.18, SD = .73). The athletes completed the TEOSQ, Sport MPS, PIAS, and the PeerMCYSQ. Parental support and peer task environment was related to girls' and boy's task orientation. For boys, personal standards, parental pressure, and fewer concerns over mistakes, also were related to task orientation. Ego orientation was related to peer-initiated ego and task climates, for the boys. For the girls, higher personal standard was the only variable related to ego orientation. For enjoyment, task orientation was the strongest predictor for the girls and the only predictor for the boys for enjoyment. The fewer concerns girls had over mistakes the more enjoyment they reported. For girls and boys, intention to continue playing next season was predicted only by enjoyment. However, results were varied when intention to play next year was examined. For boys, no predictors were discovered whereas for girls, higher levels of enjoyment and task orientation, and lower levels of parental support and pressure related to intention.