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Medicine and Health Sciences Commons

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All ETDs from UAB

2016

Exercise

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Full-Text Articles in Medicine and Health Sciences

Motor Unit Remodeling During Neuromuscular Degeneration In Aging And Parkinson's Disease, Neil Anthony Kelly Jan 2016

Motor Unit Remodeling During Neuromuscular Degeneration In Aging And Parkinson's Disease, Neil Anthony Kelly

All ETDs from UAB

The human neuromuscular system deteriorates progressively with age and disease. This results in denervation events and ultimately motor unit remodeling, which is revealed by abnormal “groups” of myofibers expressing the same myosin protein isoform – a phenomenon described as myofiber type grouping. Despite the acceptance of myofiber type grouping as a hallmark indicator of motor unit remodeling, traditional techniques of detecting it lack quantitative parameters and therefore comparative data in aging and disease are scarce. The purpose of this dissertation is to establish a statistically-driven, quantitative method for detecting myofiber type grouping and to use it to characterize the effects …


High-Intensity Interval Training With Energy Restriction Preserves Lean Tissue And Improves Glucose Tolerance In Obesity, Rachel Ann Harley Jan 2016

High-Intensity Interval Training With Energy Restriction Preserves Lean Tissue And Improves Glucose Tolerance In Obesity, Rachel Ann Harley

All ETDs from UAB

Calorie restriction (CR) reduces body weight (BW) and adiposity, but is often less than expected due to hypometabolism produced by reductions in lean body mass (LBM). A comparable energy deficit created by combining CR and exercise energy expenditure (EE) has been shown to attenuate the reduction in EE produced by CR. Continuous moderate-intensity training (MIT) is commonly used to sustain energy balance or expedite weight loss, but high-intensity interval training (HIIT) may produce greater results. The purpose of this investigation was to determine if HIIT preserves LBM and improves energy metabolism to a greater extent than MIT in the presence …