Ben Stone Presentation

Vail Symposium: Increasing Resting Fat Metabolism

FIN’

Understanding Fat Metabolism

• RESPIRATORY EXCHANGE RATIO– Metric of fuel economy for skeletal muscle

RER = FAT = 0.70 CARB =

1.00“An inability to oxidize lipids appears to be an important factor in the etiology of obesity and type 2 diabetes.”

-Jeukendrup Nutrition Volume 20, Numbers 7/8, 2004 Optimizing Fat Oxidation Through Exercise and Diet

Understanding Fat Metabolism

Shifts in Resting Fat Metabolism

• Changes in dietary status– Diet in this country (et al) has been largely

composed of carbohydrates– Reluctance to include fat in diet due to false

information• Changes in Exercise status

– Low intensity exercise has been shown to increase chronic fat dependency

Understanding Fat Metabolism

CARB FAT

ENZYMATIC REGULATION

Understanding Fat Metabolism

Understanding Fat Metabolism

CARB FAT

ENZYMATIC REGULATION

Understanding Fat Metabolism

Understanding Fat Metabolism

CARB FAT

ENZYMATIC REGULATION

Understanding Fat Metabolism

Understanding Fat Metabolism

Shifts in Resting Fat Metabolism

• Low intensity exercise:– Burns fewer calories than HIIT– Hurts less so it must be less beneficial– Requires MASSIVE volume of exercise to benefit

• In actuality…– Has a greater impact on oxidative enzyme activity– Is shown to have more influence on VO2 max– Positively effects resting fat metabolism– More consistent daily energy levels

LOWER RESTING RER VALUES

BEFORE

AFTER

THANK YOU!