Influence of Exogenous β-Hydroxybutyrate on Walking Economy and Rating of Perceived Exertion.

This study investigates the effect of a supplementary ketone, β-hydroxybutyrate (BHB), on walking economy and ratings of perceived exertion in apparently healthy individuals. In a repeated-measures, crossover design, ten non-aerobically trained participants (three males; seven females) performed two stages of a duration-modified Bruce treadmill protocol. Participants blindly consumed either 1 ounce of an exogenous BHB solution (KETO) or a noncaloric placebo (CON) 30 minutes prior to exercise testing.

EPOC Comparison Between Isocaloric Bouts of Steady-State Aerobic, Intermittent Aerobic, and Resistance Training.

Purpose: Excess postexercise oxygen consumption (EPOC) is dependent on intensity, duration, and mode of exercise. The purpose of this study was to compare the effect of both exercise mode and intensity on EPOC while controlling for caloric expenditure and duration.

Method: Ten low to moderately physically active men (22 ± 2 yrs) performed 3 nonrandomized isocaloric bouts of exercise separated by 7 days.