Ketogains > Training > Ketogains – Becoming “Bonk Proof” – Part 2
February 14, 2016
bonking, endurance, Keto-Adaptation, ketogenic endurance, Training
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darthluiggiAmateur natty bodybuilder/powerlifter, marketeer, entrepeneur and all around great guy... Lifting since 1996, ketogenic since 2001.
What are the thoughts on this study?
A limit on the energy transfer rate from the human fat store in hypophagia
“”A limit on the maximum energy transfer rate from the human fat store in hypophagia is deduced from experimental data of underfed subjects maintaining moderate activity levels and is found to have a value of (290+/-25) kJ/kgd. A dietary restriction which exceeds the limited capability of the fat store to compensate for the energy deficiency results in an immediate decrease in the fat free mass (FFM).
This says that the limit is 290+/- 25 KJ/kg/d, which is a maximum energy transfer rate of 31 kcal/lb of fat per day.
So, if you’re a 180 pound male and you’re fairly lean at 10% body fat, you have 18 lbs of fat. 31 kcal X 18 = 558 kcal deficit. That pans out to only 1.1 lbs of fat loss per week. Beyond that you lose fat free mass.”
This would mean in this scenario that you’d only be able to run about 5-6 miles on fat, at about 100 calories per mile, which is no way enough to complete a marathon. (Glycogen stores of up to 2000 calories would need to be reserved for basic BMW functions.)
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