ACSM Health & Fitness Summit

Session Outline

ACSM Health and Fitness Summit

March 12-15, 2013

Protein: The Key to Fitness, Performance and Weight Management

Donald K. Layman, Ph.D.

Professor Emeritus, Department of Foods & Nutrition

University of Illinois at Urbana-Champaign

Director of Research, Egg Nutrition Center

Chicago, Illinois

This presentation will evaluate the role of protein and amino acids in adult health and physical
performance, including repair and maintenance of skeletal muscle. Dr. Layman will review
mechanisms for the actions of amino acids in metabolism and discuss the importance of quality,
quantity and timing of protein intake with emphasis on branched-chain amino acid leucine in
muscle development and energy metabolism. The talk will provide research evidence and
application to athletes, weight management and aging as well as address questions regarding
use of protein supplements.

Outline:

1. Overview of the controversy about macronutrient choices
   
   
   • How do we make choices about the balance of protein, carbohydrates and fats?
   
   
   
   


2. Benefits of protein-rich diets
   
   
   • Effects of protein on body composition, energy expenditure, satiety and glycemic
     regulations
   
   
   
   


3. Understanding protein and amino acid roles in metabolism
   
   
   • Amino acids as building blocks versus metabolic signals
   
   
   
   


4. Protein needs depend on protein quantity, quality and distribution
   
   
   • The quantity and quality of protein at individual meals are the keys to muscle health.
   
   
   
   


5. Applications of protein-rich diets for athletes, weight management and aging
   
   
   • Getting the balance of protein and carbohydrates correct for athletic performance and
     adult health.
   
   
   
   

Selected References:
Layman DK, Baum JI. Dietary protein impact on glycemic control during weight loss. J Nutr
134:968S, 2004.

Tarnopolsky M. Protein requirements for endurance athletes. Nutr. 20:662, 2004.

Layman DK, Evans E, Baum JI, Seyler JE, Erickson DJ, Boileau RA. Dietary protein and
exercise have additive effects on body composition during weight loss in adult women. J Nutr
135: 1903, 2005.