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A COMPLETE KINEMATIC, KINETIC, AND ELECTROMYOGRAPHICAL ANALYSIS OF THE FOOTBALL THROW IN COLLEGIATE QUARTERBACKSBohnert, Kyle R. 01 January 2016 (has links)
The biomechanics of the overhead throw has been extensively studied in regards to baseball pitching. However, an understanding of the proper mechanics needed to successfully throw a football has not previously been investigated. Thus, the purpose of this study was to investigate the kinematics, kinetics, and electromyography of the football throws in elite quarterbacks. Three collegiate quarterbacks were evaluated using a multi-camera motion capture system and electromyography electrodes. The results of this study are able to give a breakdown in the types of mechanics needed in each of the phases of the throw. This study demonstrated that during the early cocking phase, most of the movement seen in the upper body occurs in the frontal plane to abduct the shoulder. During the late cocking phase, the shoulder holds a constant abduction angle and begins to externally rotate. The shoulder reaches a value of 117° of external rotation, much less than has previously been reported. During the acceleration phase, the shoulder rapidly internally rotates as well as horizontally adducts. Once the ball is released, the shoulder has to produce large forces and muscle activity to slow down the rotation. These results will be able to give coaches and players a tool for what to look for when evaluating the mechanics of an individual.
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A Points Per Game Rating For NFL QuarterbacksGober, Jon M. 22 July 2009 (has links)
No description available.
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"Power To the People" : le déclin de la figure du superhéros dans les films américains après 2001 / « Power to the People » : The decline of the Superhero Icon in American Films since 9/11Ducreux, Jean-Guy 26 October 2013 (has links)
L'objectif de cette thèse est de montrer le déclin de la figure du superhéros dans les films américains après le 11 Septembre. Les films de superhéros n?ont jamais été si nombreux. Jamais le moral du superhéros n'a été si bas. Ce paradoxe trouve sa meilleure illustration dans l'image double de Batman relégué au ras du sol, alors que le symbole commercial de la chauve-souris brille au firmament de Gotham City. La marchandise culturelle transcenderait donc un superhéros considérablement amoindri. Ce travail se concentre sur trois domaines en particulier : la perte de masculinité du superhéros à la fin du siècle dernier, qui amène à une confrontation symbolique entre le quarterback et la majorette, ou entre Superman et un hypothétique Everyman, et la réémergence d'un monomythe réactionnaire après 2005 ; les errances d'un Surmoi freudien affaibli, et sa relation fluctuante avec un Ça très séduisant, incarné par le superméchant du vingt-et-unième siècle ; la toile de fond sociopolitique contemporaine hostile aux exploits du superhéros, pour qui l'isothymie fukuyamienne omniprésente constitue une injuste condamnation de son action salvatrice. Icône d'une démocratie libérale qui règne désormais sur notre planète, le superhéros postmoderne semble singulièrement désadapté à la culture qui l'a vu naître. / The main topic of this doctoral thesis is the study of the decline of the superhero icon in American films after 9/11. Superhero productions are at an all-time high, and yet, the superhero's morale is at an all-time low. This paradox is best illustrated with the dual image of Batman stuck at Ground Zero, staring up at the projection of his chevron looming large in the sky of Gotham City. The glowing merchandise transcends an otherwise sullied character. This dissertation focuses on three main realms: the superhero's loss of masculinity at the end of the twentieth century, leading to the formal opposition between the figures of the quarterback and the cheerleader, or between Superman and Everyman, and the reactionary, warpath revival which started in 2005; the travails of the flailing Superego and its shifting relationship to the almighty Id, represented by the twenty-first century glorified supervillain; and, finally, the inimical sociopolitical backdrop for the superhero's prowess, in which Fukuyama's prevalent isothymia eventually denies the superhero his just laurels. The postmodern superhero thus appears as a national misfit, also because this cultural commodity now reaches far beyond the traditional boundaries of the « American Way », to embrace an increasingly globalized market.
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