SPORTS SCIENCE
5 SPORTS SCIENCE ESSAYS
DEGREE LEVEL
Features:
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written to a degree level
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2500-4500 words in length
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fully harvard referenced
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available in pdf and word versions
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cut, paste, edit to suit your requirements
Titles:
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Essay 1: Nutrition & Performance
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Essay 2: Carbohydrates & Endurance
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Essay 3: Glucose Metabolism in Skeletal Muscles
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Essay 4: Glycogen Re-Synthesis After Exercise
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Essay 5: Laboratory Report - The Metabolic Response to Pre-Exercise Glucose Ingestion During Running
Sample 1: Nutrition & Performance
Introduction
Nutritional strategies are an integral component of the overall goal of improving athletic performance. The amount, composition and timing of food and fluid intake can profoundly affect sports performance. Good nutritional practice will help athletes train hard, recover quickly and adapt more effectively with less risk of illness and injury.
Rugby League
A typical rugby league match is 80 minutes in duration, with frequent intense bouts of running and tackling interspersed with short bouts of recovery (Gabbett, 2006). Rugby league is physically demanding, requiring players to draw upon a variety of fitness qualities including muscular strength and power (Baker & Nance, 1999; Gabbett, 2000), endurance (Gabbett, 2005; Meir et al., 2001; O’Connor, 1996), speed (Baker & Nance, 1999; Gabbett, 2005), skill (Meir, 1994), and agility (Gabbett, 2005; O’Connor, 1996)...
Sample 2: Carbohydrates & Endurance
Carbohydrates and lipids are the main energy sources for endurance exercise. The contribution of proteins, while more than minimal, do not exceed 10%. The choice of substrate used during exercise is a metabolic compromise. Carbohydrates are an attractive fuel for muscular work. ATP mole output from carbohydrates per litre of oxygen consumed is higher than for lipids. However, liver and muscle carbohydrate stores are limited and can run out within a relatively short time, whereas lipid stores are far larger. Therefore, substrate utilization is a balance between biochemical output and fuel availability.
Endurance training results in a biochemical-physiological adaptation favoring the utilization of the most abundant substrate — lipids. Adaptive mechanisms include higher capillary flow which allows higher oxygen supply to muscles and thus more effective lipid oxidation and augmentation of mitochondria and enzyme activities aimed to lipid oxidation). In exercises of the same intensity, the subjects trained to activities where the aerobic component of metabolism is important can utilize more lipids than untrained subjects. Endurance trained athletes have been found to be able to sustain an exercise intensity as high as 65% of VO2max relying almost entirely on lipids, instead of 55% of V O2max for untrained subjects.
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