Navigation Links
Strength training improves vascular function in young black men
Date:12/21/2012

CHAMPAIGN, Ill. Six weeks of weight training can significantly improve blood markers of cardiovascular health in young African-American men, researchers report in the Journal of Human Hypertension.

The researchers measured blood markers associated with inflammation, immune response or the remodeling of arteries that normally occur after tissue damage, infection or other types of stress. They found that levels of two of these markers dropped significantly in African-American men but not in Caucasian men after six weeks of resistance training.

"This suggests that resistance exercise training is more beneficial in young African-American men than in Caucasian men of the same age," said Bo Fernhall, the dean of the College of Applied Health Sciences at the University of Illinois at Chicago. Fernhall led the study as a professor in the department of kinesiology and community health at the Urbana-Champaign campus. The 14 African-American and 18 Caucasian study subjects were matched for body mass index, cardiovascular fitness and age. None had previously been trained in endurance or resistance exercise.

African-Americans are known to have higher rates of cardiovascular disease than Caucasians, Fernhall said. In particular, "hypertension, stroke and kidney disease are much, much higher in the African-American population," he said.

Some of these problems start young.

"Higher blood pressures in African-American children have been shown as young as 8 to 10 years of age," Fernhall said. "So there's obviously something going on that predisposes the African-American population to end stage disease, hypertension and stroke and the more debilitating diseases later on in life."

A previous study led by Fernhall and his doctoral student Kevin Heffernan (an author on the new paper as well) found that resistance training reduced levels of C-reactive protein (CRP) in the blood of African-American, but not Caucasian, men. This protein is a reliable marker of systemic inflammation. Levels of CRP rise after injury or infection, and chronically elevated levels are sometimes associated with heart disease and cancer.

The new study looked at other markers that could signal trouble in the arteries: MMPs, which help remodel blood vessels after injury or infection; and 8-isoprostane, a marker of oxidative stress involving chemically charged ions or molecules called reactive oxygen species. Both markers went down in the African-Americans, but not the Caucasians, after resistance training.

The researchers were surprised to see that initial levels of MMP-9 were lower in African-Americans before the weight training.

"It may be that MMP-9 has a different effect on the vasculature of African-Americans than it does on Caucasians," said Illinois doctoral student Marc Cook, who conducted the new analysis. "We don't know."

The decrease in MMP-9 was significantly correlated with the increase in muscle strength in the African-American men, Cook said. He sees the reduction in MMP-9s and 8-isoprostane as a positive outcome in the African-American men.

Previous studies showed that "aerobic exercise actually reduces oxidative stress, and reduces iosprostane," Cook said. "But nobody had a clue about resistance training."

Cook said he now knows what to say to African-American men who ask him why they should exercise.

"If you don't like cardiovascular exercise, if you don't like running on a treadmill, if you can't play basketball or you're not good at it, you can lift weights and improve your health, especially when it comes to high blood pressure, which happens to run in our family," he said. "If you just want to lift weights and you do it on a regular basis, you could improve your function."

"The overall goal of our departmental research here at the U. of I. is to explore the use of exercise as adjunct therapy for disease, while providing a public health message and evidence about how exercise is beneficial, even at an early age," said Illinois kinesiology and community health professor Jeffrey Woods, a co-author on the study.


'/>"/>
Contact: Diana Yates
diya@illinois.edu
217-333-5802
University of Illinois at Urbana-Champaign
Source:Eurekalert  

Related biology news :

1. High-strength material advancements at Wayne State University may lead to new, life-saving steel
2. Advanced Photon Source and Canadian Light Source strengthen ties
3. Steel-strength plastics -- and green, too!
4. UCLA researchers develop way to strengthen proteins with polymers
5. Fighting bacterias strength in numbers
6. OU research groups awarded NSF grants to expand research and training in science and engineering
7. Brain training may lessen cognitive impairments associated with coronary bypass surgery
8. NIBIB and HHMI announce graduate biomedical training awards
9. Swim training plus healthy diet factor in cancer fight: New study
10. Training cells to perform Boolean functions? Its logical
11. NJIT, Chinas Bengbu Glass Institute sign agreement for R&D, training
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Strength training improves vascular function in young black men
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced ... will feature emerging and evolving technology through ... Innovation Summits will run alongside the expo portion of ... sessions, panels and demonstrations focused on trending topics within ... advanced design and manufacturing event will take place June ...
(Date:4/11/2017)... April 11, 2017 No two people ... at the New York University Tandon School of ... have found that partial similarities between prints are ... in mobile phones and other electronic devices can ... The vulnerability lies in the fact that fingerprint-based ...
(Date:4/5/2017)... 5, 2017 Today HYPR Corp. , ... server component of the HYPR platform is officially ... end-to-end security architecture that empowers biometric authentication across Fortune ... already secured over 15 million users across the financial ... connected home product suites and physical access represent a ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... Koert van Mensvoort - founder of the Next Nature Network and ... has written a ,Letter to Humanity, in support of International Earth ... and victim to its own technology, but to employ technology to enhance our ... ... of the Next Nature Network and Fellow of ‘Next Nature’ at the University ...
(Date:4/19/2017)... ... April 18, 2017 , ... The Vibrating ... key device for generating monodisperse droplets of known diameters for research applications such ... monodisperse solid particles by drying monodisperse droplets. , The VOAG requires forcing ...
(Date:4/19/2017)... , ... April 18, 2017 , ... ... Halo Labs . The move comes after the company changed focus to making ... our new brand and our new technology,” says CEO Robert Hart. Founders Bernardo ...
(Date:4/19/2017)... ... April 19, 2017 , ... WHO: Peggy Lillis ... through education and advocacy. Founded in 2010 in memory of a single-parent mom ... foundation has become the most-consulted source for patient-focused information on C. diff infections ...
Breaking Biology Technology: