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Adherence to a Ketogenic Low-Carbohydrate, High-Fat Diet Is Associated With Diminished Training Quality in Elite Racewalkers

Alannah K.A. McKay, Megan L.R. Ross, Nicolin Tee, Avish P. Sharma, Jill J. Leckey, and Louise M. Burke

perceived exertion per kilometer travelled and a higher perceptual (RPE) and physiological (HR) effort for any given speed. The LCHF diet was associated with a sustained increase in concentrations of blood β HB concentrations above the level considered to signal ketosis (0.5 mM) 2 and within proposed

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Abstracts From the 5th Annual Congress on Medicine & Science in Ultra-Endurance Sports, May 9–10, 2018, Castelló de la Plana, Spain

(0.4[0.2–1.0]) ( P  = .008) and between PR2 (0.4[0.2–1.0]) and the marathon (0.1[0–0.3]) ( P  = .008). There was no severe hypoglycemia or hyperglycemia with ketosis at any time before, during and after the PRs and Marathon. Conclusions.— To avoid exercise-induced hypoglycemia, it is necessary to reduce usual doses