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Outclimbing Cognitive Decline: Age, Western Diet, Resistance Exercise, And The Brain., Leila Dzinic
Outclimbing Cognitive Decline: Age, Western Diet, Resistance Exercise, And The Brain., Leila Dzinic
Electronic Thesis and Dissertation Repository
Increased age and obesity diminish motivation, perseverance, and spatial memory function. Aerobic exercise interventions have successfully rescued some of these processes. However, in older and heavier populations aerobic exercise is not as sustainable due to high risk of injury. Resistance exercise consists of physical activity where maximum oxygen consumption is not increased and has been proposed as a safe and effective intervention for this population. Here, we used touchscreen-based cognitive testing to elucidate the influence of resistance exercise on motivation and spatial memory in aged, diet-induced obese mice, using a water restriction procedure I develop in Chapter 2. Mice underwent …
Examining The Relationships Between Imagery, Sport Motivation, And Athletic Identity In Curling, Nicole Westlund
Examining The Relationships Between Imagery, Sport Motivation, And Athletic Identity In Curling, Nicole Westlund
Electronic Thesis and Dissertation Repository
Imagery use, motivation, and athletic identity all have been investigated in sport; however, a study examining the relationships among these three constructs has yet to be conducted. The participants (N = 213) were club and competitive curlers (Mage = 49.0; SD = 15.39). Results showed that athletic identity was significantly correlated with all five imagery functions and six behavioural regulations (p < .01) except for external regulation and amotivation. Multiple regression analyses predicting imagery use from both the behavioural regulations and athletic identity were conducted for each imagery function in club and competitive curlers. Athletic identity, identified regulation, and integrated regulation emerged as significant predictors of imagery use (p < .05). These findings suggest that there is a link between imagery use, motivation, and athletic identity. Researchers and sport psychologists can use these findings to develop more effective psychological skills training programs to improve the performance of curlers.