HNU 363 Lecture Notes - Lecture 13: Overconsumption, The Fluid, Urinary System
Document Summary
Chronic high fat diet = higher fat oxidation at rest and lower intensity exercise. 1983: chronic ketosis without kcal restriction with well trained cyclists (page 218 fo- cus on research) 85% fat (20g cho), micronutrient and protein adequate, 4 weeks (all foods provided), isocaloric. Pre and post time to exhaustion test (at 60-65% vo2 max) 60-65% vo2 max is low intensity for well trained athletes. Time: 147 min pre 151 min post (ns); higher in 3/5, lower in 2/5. [m-glycogen] lower b/f final test but still able to finish. Claim: high fat diet = high cho diet for endurance. High cho/protein intake typically means lower fat intake. 20 35% total caloric intake; ~1. 0 g/kg daily. May need to be as high as 3. 0 g/kg (ultraendurance athletes) when total kcal high. Cho or protein deficits may be detrimental to performance. Athletes may consume a short-term, low fat diet to achieve body composition goals. Example: 6-8 week cycle prior to body-building competition.