Related Experiment Video
Updated: Jun 24, 2026

Skeletal Muscle Gender Dimorphism from Proteomics
Published on: December 14, 2011
Human Performance Enhancement in Sports and Exercise: Nutritional Factors - Protein
1Director Applied Physiology Laboratory., University of North Carolina., Chapel Hill, North Carolina USA.
Abstract:
For years there has been tremendous debate by sports nutritionist over the question - "Do men and women who are athletes need more protein in their daily diet than non-athletic individuals?" Research over the last few decades has provided evidence to answer that question with a "yes". The protein needs of both strength and endurance athletes can be approximately 1.5 to 2.0 times higher than the present adult recommended dietary allowance (0.8 grams dietary protein per kilogram of body mass per day). The exact amount is depended upon a variety factors; such as, type-mode of exercise, intensity-duration of exercise, gender, whether someone is a vegetarian, age, and health. This article discusses the recommendations for the daily protein needs of athletes and those factors that need to be considered by athletes and their coaches with respect to amino acid - protein consumption in an attempt to improve exercise performance.
Related Concept Videos
Exercise and Muscle Performance
Endurance exercises
Endurance exercises involve running, swimming, or cycling, which require repetitive movements with low force output. When a person engages in endurance exercise, a few noticeable changes occur in their skeletal muscles. For instance, the number of capillaries...
Proteins: Dietary Sources and Requirements
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be met...
Role of Proteins in the Human Body
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...

