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Apprendre à la fois à se placer volontairement dans des situations de plus en plus risquées et à gérer la progression de sa prise de risque personnelle constitue un trait particulier des lifestyle sports (Wheaton, 2004). Ce mémoire a pour but de comprendre la place qu’occupe le risque dans le processus de construction et dans la confirmation de l’identité des membres des groupes de lifestyle sports. Pour ce faire, la recherche expliquera les formes que prend le risque à chaque étape de la carrière (Becker, 1963) d’un adepte de lifestyle sport. Plus précisément, nous verrons comment le risque est surtout présent dans la socialisation et la confirmation d’un participant alors que les étapes préliminaires de présocialisation et d’initiation sont très peu teintées par celui-ci. L’échantillon de ce projet est constitué de 20 participants,
seize adeptes de slackline et quatre traceurs de parkour. [résumé de l'auteur]

The purpose of this study was to examine the affect of slacklining on core strength and balance in college age students. Subjects consisted of students enrolled in two activity classes at a Midwest Division III university campus. Students enrolled in the circus arts class formed the experimental group, which consisted of a four-week slacklining treatment; and students in the indoor rock climbing class acted as the control group and did no slacklining during the training period. The researchers administered core strength and balance tests on both groups before and after the four-week training protocol using the Biering-Sorenson (BST), right and left lateral bridge (RLB and LLB), trunk flexor (TF) test and the Star Excursion Balance Test (SEBT). Upon examining the results of a MANOVA and a repeated measures ANOVA test, there are no significant differences between the experimental and control groups with regard to mean core strength at a 5% level of significance (p=0.140). However repeated measures ANOVA showed that there was a significant difference in the normalized mean balance scores between the experimental and control group at a 5% level of significance (p=0.004). With this information further research into the relationship between slacklining and balance should be investigated.[author summary]