HSE201 Study Guide - Final Guide: Vo2 Max, Pancreas, Cardiac Output

• School: Deakin University
• Department: Health
• Course: HSE201
• Professor: Stuart Warmington

Document Summary

* unlike fast acting hormones, both cortisol and gh are in uenced by a variety of stressors. *hormone balance during exercise is to favour muscle fuel mobilisation, limit tissue uptake, and ensure circulating fuel supply for exercise. Low-intensity exercise (<30% vo2 max) fats are primary fuel. High-intensity exercise (>70% vo2 max) cho are primary fuel. Crossover concept describes shift from fat to cho metabolism as exercise intensity increases. Stimulation of increased levels of epinephrine results in an increased rate of lipolysis and thus a breakdown of tricylcerides into glycerol and ffa"s. Increased sarcolemmal glucose transport via glut 4 translocation. Increased muscle glucose delivery via elevated skeletal muscle blood ow. Insulin indirectly enhances muscle glucose uptake during exercise. Additional glucose enters the blood to prevent fatigue. Pancreatic hormones reduced plasma insulin and increased plasma glucagon. When liver glycogen stores deplete, liver glucose output declines. Rate of ffa output dependent on rate of tg lipolysis.