Bookmark Website  | Free Registration  | The Team
The Lounge  | Champions  | The Wire |  Schedule |  Audio  |  Arcade  |  The Top Ten  |  Historical  |  Email  |  Video

Protein and Endurance Sports


Endurance Sports are like music concerts. They start at a low key, setting a steady rhythm and culminate into a crescendo that enthralls the spectator and the athlete. And not unlike an orchestra, endurance demands a flawless performance from every organ, testing the limits of their resilience. As each system, conducted by the human will, endures a pace bordering on fatigue, the athlete begins to hear music from the heart. What's often neglected, and considered unnecessary, in endurance sports is a high-protein diet that can expand the aerobic capacity and power the performance.

To sustain effort and delay fatigue, the body needs an adequate supply of oxygen and fuel without accumulating waste products, acids or heat. Greater the intensity of the workout, greater is the efficiency required. The capacity of the cardiovascular and respiratory systems, the fuel stores in the muscle, the hepatic and renal support systems must all expand exponentially to perform in endurance sports. If any of these prerequisites are not met, the internal milieu becomes uncomfortable. Metabolism slows down, to allow excretion of wastes, acids and heat, as fatigue sets in. The aerobic stress of endurance sports provides the necessary stimulus for growth and development. The body is ready to build. All that is needed are the building blocks-the Proteins.

Given an adequate and appropriate supply of proteins, the body remains in a state of positive nitrogen balance. Sufficient protein consumption, along with a high-energy diet also influences the carbohydrate and fat metabolism. In the well-fed state, with sufficient physical activity, dietary proteins stimulate the simultaneous release of the growth hormone and insulin. The combined hormonal influence redirects dietary carbohydrate and fat to the aerobic muscle fibers where they are stored as fuels for exhausting workouts. The consequent increase in muscle stores of glycogen and lipid allows sustained activity for a longer time. With enough proteins, the lean body mass, stamina and performance increase throughout the training program.

Proteins and amino acids also directly supply between 1 to 6 % of the energy needs during a workout. The proportion of energy derived from proteins increases with the intensity of the exercise. Given their role in bodybuilding, proteins are too important to be used as fuel and attempts should be made to minimize this percentage. Studies by Bowtell and Tarnopolsky, report that a high-energy (carbohydrate) diet, when combined with an ample protein intake and hydration, has a protein sparing effect under aerobic conditions. However, when the protein intake is inadequate, the high-energy diet fails to protect proteins from being used up as fuel. Therefore, endurance athletes need to ensure high levels of protein intake not only to supply amino acids for growth, but also to make sure that the amino acids don't get burnt up as fuel.

Endurance athletes need proteins but do they need protein supplements? The answer, till recently, was negative for recreational and modest athletes. Protein supplements were advised only for professional athletes and for sportspersons with a diet deficient in proteins. However, these recommendations, based on a parameter called 'nitrogen balance', have often been questioned. Young and Bier propose that there exists a subtle state of protein deficiency, called the 'accommodative' state, where an inadequate protein intake is masked by the breakdown of body proteins. Measurements based on nitrogen balance do not take the accommodative state into account and are therefore are not accurate enough to calculate protein requirements. Mark Tarnopolsky, in a recent review on Protein Requirements in Endurance Athletes, also raises similar questions.

Epidemiological studies, by McKenzie and others, also suggest that the dietary protein intake of up to 20% of athletes may be below levels recommended for sedentary individuals. Then there is always the ambiguous quality and absorbability of a dietary protein. Just eating proteins in diet does not ensure that they will provide all the essential amino acids in adequate quantities. Given the vital role that proteins play in the metabolic and physiological response to aerobic stresses of endurance sports, and the uncertainties regarding dietary protein intake, a protein supplement like Profect, can go a long way in improving performance.

Adequate training and a Profect diet will take endurance to its limits, to levels where aerobic metabolism stimulates the release of enkephalins, the human equivalent of opium. These enkephalins produce the natural high that is often referred to as the 'flow'. As long as metabolism remains aerobic, the mind is flooded with enkephalins and the systems function in harmony. In 'flow' capacity seems endless and fatigue non-existent. Profect, the perfect protein supplement can do that for you.

About Protica

Founded in 2001, Protica, Inc. is a nutritional research firm with offices in Lafayette Hill and Conshohocken, Pennsylvania. Protica manufactures capsulized foods, including Profect, a compact, hypoallergenic, ready-to-drink protein beverage containing zero carbohydrates and zero fat. Information on Protica is available at www.protica.com. You can also learn about Profect at www.profect.com.

References

1. Tarnopolsky M.:Protein Requirements for Endurance Athletes Nutrition 200420:662- 668.

2. McKenzie S, Phillips SM, Carter SL, Lowther S, Gibala MJ, Tarnopolsky MA:Endurance exercise training attenuates leucine oxidation and BCOAD activation during exercise in humans. Am J Physiol Endocrinol Metab 2000278:E580

3.Bowtell JL, Leese GP, Smith K, et al. Effect of oral glucose on leucine turnover in human subjects at rest and during exercise at two levels of dietary protein.J Physiol 2000525(pt 1):271

4. Young VR, Bier DM, Pellett PL. A theoretical basis for increasing current estimates of the amino acid requirements in adult man, with experimental support. Am J Clin Nutr 198950:80

Copyright 2004 - Protica Research - http://www.protica.com


MORE RESOURCES:

Opposing Views

Nutrition, Competitive Foods Rules Among Top Concerns for School Food ...
Education Week News (blog)
School nutrition workers identified compliance with federal rules regarding nutrition and competitive foods, cost, and participation among the "most pressing issues" for meal programs in a survey released by the School Nutrition Association this week.
HEALTHY TODAY | School nutrition: Food for thought and funMadison Park Times
New menus bring healthier food choices for upcoming school yearRenton Reporter
Students Throwing Away First Lady Michelle Obama's Healthy School LunchesOpposing Views
KSBY San Luis Obispo News
all 11 news articles »


Fruitful Yield health food store draws nutrition-conscious consumers
The Doings Western Springs
Nutrition-conscious consumers can trade greasy chips for a handful of organic Chia seeds, a shot of alfalfa tonic, dried Papaya spears or an assortment of gluten free mixes. The health food store opened May 18 and hosted a grand opening Aug. 22-24.

and more »


Nutrition of champions
WAVY-TV
PORTSMOUTH, Va. (WAVY) – More than 15,000 runners will hit the pavement for the Rock & Roll Virginia Beach Half Marathon, and if you're one of them, it's important that you eat to win. Wendy Phillips, Registered Dietician and President of the Virginia ...



Good nutrition deserves the old college try
The Daily Camera
Just in time for the millions of young people who have returned to college comes a study in The Journal of Nutrition that warns of the health risks of that fast and cheap campus favorite, ramen noodles. A two-year survey of 10,711 South Koreans showed ...

and more »


West Hartford Nutrition Services: 'It's Cool to Eat in School' (Slideshow)
West Hartford News
Kathleen Schassler/West Hartford News Wolcott Elementary students select from a new hot lunch menu that includes whole muscle regular or spicy chicken strips, fresh, local corn-on-the-cobb, a whole grain biscuit, milk, and choice of fruit (local apples ...



Onslow County Schools Hiring Nutrition Substitutes
WITN
If you enjoy the scholastic atmosphere, specifically the cafeteria, you now have the chance to join one local county's school nutrition department and help out in the kitchen. Onslow County Schools Child Nutrition Department said it is hiring Child ...

and more »


Allegheny Health Network launches concussion, nutrition initiative
Pittsburgh Business Times
Allegheny Health Network and Come Ready Nutrition have launched a new initiative for concussion awareness and sports nutrition for youth athletes. Part of the Strong Body & Mind Initiative will be training in the latest on concussions from the ...
Allegheny Health Network and Come Ready Nutrition Announce Regional ...DigitalJournal.com

all 6 news articles »


TakePart

Can Improved Nutrition Prevent the Next Ebola Outbreak?
TakePart
“Clearly, for any acutely ill patient, nutritional status is extremely important,” said Bruce Ribner, medical director of the infectious diseases unit at Emory University Hospital, at the press conference. “If you have somebody who is well nourished ...



Back to School Nutrition Tips
wwlp.com
(Mass Appeal) – To make the transition from summer into back-to-school mode easier for parents we've got some tips, recipes and lunch ideas for your kids! Dr. Laura Christoph, Professor of Nutrition showed us some healthy breakfast, lunch and snack ideas!



This Week's Nutrition News Feed
Healthy Eats (blog)
In this week's news: The produce aisle takes a page from the junk food playbook; breakfast proponents get a wake-up call; and new thinking on salt shakes things up. Hey, Kids: Do Try This At Home Parents encouraging kids to reach for fruits and ...

and more »

Google News


Advertisement



Section Site Map - Submit News - Feedback - Comments - Advertise with Us

Copyright 2006 Luminati Inc. All rights reserved.