ESTIMATION OF OPTIMAL PROTEIN AND/OR AMINO ACID INTAKE FOR PHYSICALLY ACTIVE INDIVIDUALS HAS BEEN HISTORICALLY PROBLEMATIC BECAUSE (A) SUBJECTS CONSUMING THE SAME ABSOLUTE AMOUNT OF PROTEIN COULD CONSUME DIFFERENT AMOUNTS AND TYPES OF AMINO ACIDS, (B) THE TIMING OF INGESTION (PRE VERSUS POST EXERCISE) ALTERS PROTEIN KINETICS (SYNTHESIS VERSUS BREAKDOWN), AND (C) THE ADDITION OF NONPROTEIN ENERGY (CARBOHYDRATE) AFFECTS PROTEIN KINETICS.
1The Center for Applied Health Sciences, Fairlawn, Ohio; 2Lakeland Community College, Kirtland, Ohio; and 3Kent State University, Kent, Ohio
Tim Ziegenfuss is a certified sports nutritionist and currently consults with college-, Olympic-, and professional-level athletes as the CEO of the Center for Applied Health Sciences in Fairlawn, Ohio.
Jamie Landis is a tenured professor of biology at Lakeland Community College in Kirtland, Ohio, and founder and director of the Lakeland Youth Sport Science Institute, an athletic training/conditioning institute for children aged 6-15.
Robert A. Lemieux is the head strength and conditioning coach at Kent State University and is completing requirements for a master's degree in nutrition.