Protein drinks after exercise help maintain aging muscles
New research in the FASEB Journal suggests that protein drinks help older subjects build more formidable muscles than their counterparts who drink carbohydrate beverages
2011-05-26
(Press-News.org) Bethesda, MD—A new research report appearing online in the FASEB Journal (http://www.fasebj.org) shows that what someone drinks after exercise plays a critical role in maximizing the effects of exercise. Specifically, the report shows that protein drinks after aerobic activity increases the training effect after six weeks, when compared to carbohydrate drinks. Additionally, this study suggests that this effect can be seen using as little as 20 grams of protein.
"It is not a mystery that exercise and nutrition help slow the aging process," said Benjamin F. Miller, Ph.D., a researcher involved in the work from the Department of Health and Exercise Science at Colorado State University in Fort Collins, Colorado. "Studies such as ours help to explain how exercise and nutrition work so that we can better take advantage of those pathways to slow the aging process."
To make this discovery, scientists recruited 16 participants age 37 and older and instructed them to exercise on treadmills for 45 minutes three times a week for six weeks. After each bout of exercise, one group was given a protein drink and another group was given a carbohydrate drink. To measure the making of new structures in the muscle, metabolic pathways were measured using heavy water labeling. Subjects consumed heavy water, which becomes incorporated into many synthetic processes allowing measurement of the rates at which different components of the muscle are being made. Using ultra-sensitive mass spectrometry methods, scientists took muscle samples at the end of the six weeks and were able to determine how much of the muscle and its component pieces were new. In this case, new proteins, DNA, and membranes were measured. This showed that endurance exercise, commonly prescribed for older people for a healthful lifestyle, induces positive changes in skeletal muscle structure.
"If you want to age gracefully, this study shows that proteins taken after exercise keep your muscles strong and fit," Gerald Weissmann, M.D., Editor-in-Chief of the FASEB Journal. "You've got to feed your body with the proper nutrients after a work-out. Fortunately, protein shakes are cheap, readily available and some say taste good."
###
Receive monthly highlights from the FASEB Journal by e-mail. Sign up at http://www.faseb.org/fjupdate.aspx. The FASEB Journal (http://www.fasebj.org) is published by the Federation of the American Societies for Experimental Biology (FASEB) and celebrates its 25th anniversary in 2011. Over the past quarter century, the journal has been recognized by the Special Libraries Association as one of the top 100 most influential biomedical journals of the past century and is the most cited biology journal worldwide according to the Institute for Scientific Information.
FASEB comprises 23 societies with more than 100,000 members, making it the largest coalition of biomedical research associations in the United States. FASEB enhances the ability of scientists and engineers to improve—through their research—the health, well-being and productivity of all people. FASEB's mission is to advance health and welfare by promoting progress and education in biological and biomedical sciences through service to our member societies and collaborative advocacy.
Details: Matthew M. Robinson, Scott M. Turner, Marc K. Hellerstein, Karyn L. Hamilton, and Benjamin F. Miller. Long-term synthesis rates of skeletal muscle DNA and protein are higher during aerobic training in older humans than in sedentary young subjects but are not altered by protein supplementation. FASEB J; doi:10.1096/fj.11-186437 ; http://www.fasebj.org/content/early/2011/05/25/fj.11-186437.abstract
END
ELSE PRESS RELEASES FROM THIS DATE:
2011-05-26
Medications are the mainstay of treatment for epilepsy, but for a considerable number of patients — estimated to be as many as 1 million in the U.S. — drugs don't work. These patients suffer from a type of epilepsy known as refractory or drug-resistant epilepsy, in which drugs can't control their seizures.
But at an epilepsy conference last month, Dr. Christopher DeGiorgio, a UCLA professor of neurology, presented the results of a non-invasive, non-pharmaceutical treatment that shows promise in controlling seizures.
In his talk at the Antiepileptic Drug Trials XI ...
2011-05-26
SEATTLE – Overweight or obese women with less-than-optimal levels of vitamin D who lose more than 15 percent of their body weight experience significant increases in circulating levels of this fat-soluble nutrient, according to a new study by researchers at Fred Hutchinson Cancer Research Center.
"Since vitamin D is generally lower in persons with obesity, it is possible that low vitamin D could account, in part, for the link between obesity and diseases such as cancer, heart disease and diabetes," said Caitlin Mason, Ph.D., lead author of the paper, published online May ...
2011-05-26
URBANA – A high-fat diet during pregnancy may program a woman's baby for future diabetes, even if she herself is not obese or diabetic, says a new University of Illinois study published in the Journal of Physiology.
"We found that exposure to a high-fat diet before birth modifies gene expression in the livers of offspring so they are more likely to overproduce glucose, which can cause early insulin resistance and diabetes," said Yuan-Xiang Pan, a U of I professor of nutrition.
The high-fat diet that caused these changes was a typical Western diet that contained 45 percent ...
2011-05-26
It is common knowledge that bats and dolphins echolocate, emitting bursts of sounds and then listening to the echoes that bounce back to detect objects. What is less well-known is that people can echolocate too. In fact, there are blind people who have learned to make clicks with their mouths and to use the returning echoes from those clicks to sense their surroundings. Some of these individuals are so adept at echolocation that they can use this skill to navigate unknown environments, and participate in activities such as mountain biking and basketball.
Researchers at ...
2011-05-26
Mars developed in as little as two to four million years after the birth of the solar system, far more quickly than Earth, according to results of a new study published in this week's issue of the journal Nature.
The red planet's rapid formation helps explain why it is so small, say the study's co-authors, Nicolas Dauphas at the University of Chicago and Ali Pourmand at the University of Miami.
Their research was funded by the National Science Foundation (NSF).
Mars probably is not a terrestrial planet like Earth, which grew to its full size over 50 to 100 million ...
2011-05-26
Whale sharks (Rhincodon typus) are often thought to be solitary behemoths that live and feed in the open ocean. Scientists at the Smithsonian Institution and colleagues, however, have found that this is not necessarily the case, finding that whale sharks can be gregarious and amass in the hundreds to feed in coastal waters.
Aggregations, or schools, of whale sharks have been witnessed in the past, ranging from several individual sharks to a few dozen. However this new research, which involved both surface and aerial surveys, has revealed an enormous aggregation of whale ...
2011-05-26
Coral Gables, Fla. – May 25, 2011 – Economic recessions are weaker, expansions are stronger, and economic recovery is faster in U.S. states where people are more optimistic says a new study from the University of Miami School of Business Administration. Further, the effects are stronger in states where people are older, less educated and less socially connected.
"Previous studies have shown that economic conditions affect mood – people would expect this, it's more obvious," said Alok Kumar, the Gabelli Asset Management Professor of Finance at the University of Miami ...
2011-05-26
CAMBRIDGE, Mass. -- Developing countries often lack the official government structure needed to collect taxes efficiently. This lack of systematic tax collection limits the ability of those countries to provide public services that aid growth, such as roads, sanitation and access to water.
But a new study co-authored by MIT economist Benjamin Olken reveals that developing countries actually have extensive informal systems in which citizens contribute money and labor to public-works projects. In effect, local governments in the developing world collect more taxes and produce ...
2011-05-26
Back in high school, on the soccer field, poised to take a crucial penalty kick, "I always had a lot of thoughts going on in my head; I think most people do" says sports psychologist Antonis Hatzigeorgiadis. "I was setting the ball and planning my shot; I was the captain and never missed those types of shots; then I had that thought striking me that it was not going to be good. I knew I was going to miss," he recalls, "and I did miss." Even then, he could see that his mind had a big effect on his body.
From these unhappy experiences evolved Hatzigeorgiadis' interest ...
2011-05-26
Five billion years from now, our Milky Way galaxy will collide with the Andromeda galaxy. This will mark a moment of both destruction and creation. The galaxies will lose their separate identities as they merge into one. At the same time, cosmic clouds of gas and dust will smash together, triggering the birth of new stars.
To understand our past and imagine our future, we must understand what happens when galaxies collide. But since galaxy collisions take place over millions to billions of years, we can't watch a single collision from start to finish. Instead, we must ...
LAST 30 PRESS RELEASES:
[Press-News.org] Protein drinks after exercise help maintain aging muscles
New research in the FASEB Journal suggests that protein drinks help older subjects build more formidable muscles than their counterparts who drink carbohydrate beverages
