Dietary carbohydrate is an obligatory requirement? Louise Burke

This talk was given at The Biomedical Basis of Elite Performance
East Midlands Conference Centre, Nottingham, UK 6-8 March 2016
8 March 2016
Session: Exercise metabolism and nutrition
Chair: Carolyn Greig, University of Birmingham, UK
Full title: Dietary carbohydrate is an obligatory requirement for the endurance athlete or is it? Louise Burke

[mjpucher]

Hardly anyone contests that CH deliver higher intensity short term performance. Studies always depends on who does them. The formulation of the diets tested seems not what most athletes actually do. They use a weight loss diet an athlete. Or they keep carbs too high for proper fat adaptation. For an everyday person doing some high intensity sports I can report from my and my friends experience that my endurance ability increased substantially without relying on carbs. But yes, some of it may be related to the reduction of problems with digestion of grains. Some of it maybe related to my focus on much more protein which increased my muscle growth. Protein can also convert to glucose when needed during the exercise. Biggest benefit is that the lack of glycogen makes the metabolism utilize lactate for fuel and thus the typical day-after muscle pains are gone. And yes, overall the low carb diet enabled my to train much intensely and made it a lot more fun. Therefore I am ok with being on a supposed bandwagon ... it works.

[williamwightman]

Study six at time stamp 9:50 is the only study that comes close to a real fat adaptation time period, and it was short by at least one week. Unfortunately study six athletes could not have been fat adapted because their fat consumption was on the order of 250 grams/day for a 150 pound person. Fat adaptation limits are in the 50 grams per day. So none of the six studies cited qualify as valid for fat adaptation because of both short adaptation period shortfall and high carbohydrate level. Oops. This is however an old review so perhaps that is the problem (20:20 hindsight).

[darthsoulglow]

Keto isn’t really a sports oriented life style! It’s for burning fat. For those that don’t do high intensity.

[GregariousAntithesis]

Once you are doing exercise in the 140 bpm and above you are burning glycogen and if you burn down all your glycogen you can continue to a point but the liver cannot keep up with the demands of the muscles for glucose during moderate to intense exercise i ended up thinking i was having a heart attack when i burned up all my glycogen scared the crap out of me.