Life Sciences Commons^™

Neuromuscular Adaptations To Voluntary Contraction Following Postactivation Potentiation, Cameron B. Smith

Electronic Thesis and Dissertation Repository

Muscle contractile properties are history-dependent, and following a conditioning contraction, muscle tissue may be fatigued (slower, weaker) or potentiated (faster, stronger). Postactivation potentiation of evoked contractions, such as the electrically stimulated twitch, has been thoroughly studied. However, the effects of potentiation on voluntary contraction are not well understood, and prior study is largely equivocal.

The following studies propose to determine the effects of potentiation during 1) submaximal contractions at different muscle lengths 2) ballistic contractions following tetanic and voluntary conditioning, and 3) motor evoked potentials following tetanic and voluntary conditioning contractions. Evoked twitch potentiation was assessed with all of the …

Biosteel High Performance Sports Drink Improves Exercise Performance Following A Simulated Hockey Game, Kolten C. Abbott

Electronic Thesis and Dissertation Repository

INTRODUCTION: BioSteel High Performance Sports Drink (BioSteel) is one of the most popular sports supplements consumed by professional and amateur athletes. BioSteel Inc^® claims that consumption of BioSteel before and during exercise will result in “enhanced energy while delaying the onset of muscular and mental fatigue”. PURPOSE: Assess the efficacy of BioSteel supplementation on anaerobic and aerobic exercise performance as well as sport-specific cognition throughout exercise. METHODS: Eleven exercise-trained men completed a simulated hockey game on a cycle ergometer under two experimental conditions: BioSteel and isoenergetic placebo. Measures of exercise performance and cognition were assessed before, throughout and after …

A Philosophical Analysis Of Ethics Education In The Canadian National Coaching Certification Program For Rowing, Mark M. Williams

Electronic Thesis and Dissertation Repository

This dissertation applies a conception of rationality from the philosophy of science to the coaching education context. The purpose of this dissertation is to present an account of how the exercise of judgment by coaches facing ethical dilemmas can be rational. The discussion in this dissertation begins with a traditional account of rationality that has long been a staple of moral philosophy. Next, the influence of this model in the current Canadian rowing coach education program are highlighted, as are its limitations in providing a complete account of rational ethical-decision making in the coaching context. After establishing these limitations, an …

Boxing In The Union Blue: A Social History Of American Boxing In The Union States During The Late Antebellum And Civil War Years, Greggory M. Ross

Electronic Thesis and Dissertation Repository

This study explores the social history of boxing in the Civil War era Union States in both the martial and civilian contexts, focusing on issues of masculinity, ethnicity, race, and class. This dissertation is divided into four sections, each emphasizing a different boxing scene. First, boxing in is explained in the context of the Union Army, drawing upon accounts of military life from diaries, letters, official army correspondence, and newspapers to examine how soldiers used: gloved sparring for physical and mental exercise and camaraderie; bare-knuckle prizefighting for dispute resolution, entertainment, and gambling; and both forms of boxing to exhibit masculine …