EXSS2028 Lecture Notes - Lecture 1: Creatine Kinase, Adenylate Kinase, Atp Hydrolysis

• School: University of Sydney
• Department: Exercise and Sport Science
• Course: EXSS2028
• Professor: Kieron Rooney

Document Summary

Maximal rate at which oxygen is consumed. Place where most oxygen consumption occurs in within the skeletal muscle. Oxygen is not converted to co2 - both consumed or produced. During steady state exercise when the vo2 plateaus, the volume consumed by the body meets the metabolic demand for that activity. When the vo2 is increasing, it represents where non-oxygen pathways are needed to meet the increase in metabolic demand. Measured through collecting expired air from a subject and analysing % of o2 and co2 > calculate to find vo2 and vco2. Respiratory exchange ratio = vco2 / vo2 (or respiratory quotient) Theoretical equations used to determine burning of carbohydrates and fats. Gives you absolute amount (grams) of sugars and fats burned per minute (masicotte/perronet) 1g of carbohydrates = 4kcal energy (16kj) 1g of fats = 9kcal energy (36kj) Use the calculations to determine the % of energy coming from carbs or fats during exercise.