HOME >> MEDICINE >> NEWS
More muscle means better regulation of blood pressure, study finds

looked at casual blood pressure and did not factor in fat's contribution. Not unlike building muscle in response to lifting heavier weights, the body also builds more lean tissue to support more fat. "The argument was that you have to have greater lean mass to carry the greater fat mass, so it was really the greater fat mass that was the culprit," Dr. Harshfield says. "I am sure this is true, particularly in adults."

Fat, especially abdominal fat, secretes angiotensin which makes angiotensin II, a powerful vasoconstrictor that also directs the kidneys to absorb more sodium so blood vessels retain more fluid volume, says Dr. Harshfield, who is principal investigator on a separate National Institutes of Health grant looking at how fat contributes to high blood pressure. Research he published in 2003 in Hypertension also shows that overweight boys have greater blood pressure increase in response to stress than their female peers and decreased ability to return to normal.

For the newly published study, researchers measured the blood pressure of study participants every 15 minutes throughout a two-hour baseline period, an hour of competitive video games and a two-hour recovery period.

They found that while blood pressure increased an appropriate average of 5 percent in response to the stress of video games, participants who had more lean muscle mass than fat were better able to return to normal levels through this sodium excretion process called natriuresis.

Previous studies by Dr. Harshfield have shown that race also contributes to elevated pressures following stress because of blacks' reduced ability to excrete sodium. The new study shows that high body fat is another independent predictor of the abnormal response.

"The major finding of this study is that body composition is related to the pressure natriuresis response to mental stress," the researchers write. "Specifically, (lean body mass) was associated with higher (blood p
'"/>

Contact: Toni Baker
tbaker@mcg.edu
706-721-4421
Medical College of Georgia
23-Nov-2004


Page: 1 2 3

Related medicine news :

1. Hopkins begins human trials with donor adult stem cells to repair muscle damaged from heart attack
2. Speakers cramp, a new type of involuntary mouth-, lip-muscle movement
3. Young blood revives aging muscles, Stanford researchers find
4. Stem cells of limited use for cardiac muscle repair
5. Risk of muscle-damaging disorder low for most commonly prescribed statin drugs
6. Skeletal muscle cells could be source of stem cells for regenerating nerve tissue
7. New insights into muscle adaptation to exercise
8. Using smart fluids to retrain muscles
9. Ads with supersized actors leave men depressed, unhappy with their muscles, UCF study shows
10. Testosterone replacement improves muscle strength, function in HIV-infected women
11. When switched on muscle stem cells morph to resemble nerve cells

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/26/2016)... , ... May 26, 2016 , ... ... discovery of thousands of defective respirators, according to court documents and SEC filings. ... of William and Becky Tyler v. American Optical Corporation, Case No. BC588866, Los ...
(Date:5/26/2016)... ... May 26, 2016 , ... On Memorial Day, Hope For ... their lives in military battle for the country. The nonprofit Hope For Heroes ... more programs that empower independence for disabled military veterans, as well as police, firemen, ...
(Date:5/26/2016)... ... 26, 2016 , ... MadgeTech will be showcasing its line of data ... Hampshire at the MadgeTech headquarters. With products sold in more than 100 countries around ... including NASA. , In 2012, NASA strategically set up 17 RHTemp101A MadgeTech ...
(Date:5/26/2016)... ... May 26, 2016 , ... In an effort to provide hair restoration information to the widest ... and those who do not use the app. Dr. Mohebi, the founder of Parsa Mohebi ... Mohebi Live . , Dr. Mohebi says, “The positive response to the Snapchat videos ...
(Date:5/26/2016)... ... 26, 2016 , ... The Lung Institute has partnered with the ... starting June 6 at their clinic in downtown Tampa. The class is complimentary for ... Institute has created a free downloadable 4 Week Smoking Cessation Guide for ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... -- The healthcare sector is large and ... falling under its umbrella.  A rather overlooked sector are ... about, these healthcare companies are still trying to prove ... by far the largest consumer of the healthcare market ... Nutranomics Inc. (OTC: NNRX), KollagenX Corp. (OTCQB: KGNX), Bioelectronics ...
(Date:5/26/2016)... A key trend that will ... of new treatments. Cardax, a development stage life sciences ... therapy is expected to fulfil large unmet medical needs ... studies to develop new treatments for osteoarthritis. One such ... in osteoarthritis are being investigated, and early trials of ...
(Date:5/26/2016)... , May 26, 2016   Change ... and analytics, network solutions and technology-enabled services ... it entered into a strategic channel partnership ... outpatient software solutions and revenue cycle management ... hospitals and rehabilitation clinics to optimize revenue, ...
Breaking Medicine Technology:
Cached News: