Navigation Links
Marathoners Face Greater Risk of Artery Problems
Date:3/13/2010

And this could lead to high blood pressure, heart attack, even death, study suggests

SATURDAY, March 13 (HealthDay News) -- If regular exercise such as jogging is good for the heart, then turbo-charged workouts like training for marathons must be even better, right?

Not so fast, according to new research by Greek doctors who found that marathon runners have increased stiffness of the large arteries, suggesting that some types of high-intensity exercise may actually be bad for the heart, potentially leading to hardening of the arteries, high blood pressure, heart attack and even death.

"Our data suggest that exercise may have an inverted U-shape relation with arterial stiffness. In other words, when you do not exercise you have higher risk of cardiovascular events, but the same also happens when you exercise too much," study lead investigator Dr. Despina Kardara, of Athens Medical School, Hippokration Hospital, said in a news release. "Regular long-term endurance training is generally beneficial for heart health, but it seems that the cardiovascular system is like a sports car engine. If you do not use it, it will decay, but if you run it too fast for too long, you might burn it out."

The findings were presented Saturday at the American College of Cardiology's annual scientific session, in Atlanta.

The study, which the researchers said was the first examine the long-term effect of intense, protracted endurance training on the elastic properties of the large arteries, found that male marathon runners (females were not included in the study) had significantly increased stiffness of the aorta -- the major artery leading from the heart -- when compared with people who took part in recreational exercise.

The researchers evaluated blood pressure and artery elasticity in 49 healthy men who regularly trained to run marathons and 46 control subjects who weren't endurance athletes. The marathoners had significantly higher systolic blood pressure (the top number in a reading) than the non-marathoners, about 11 points higher on average, when measured at the brachial artery in the upper arm. Their mean blood pressure was also about 8 points higher on average than the control subjects.

The researchers concluded that the study participants' exercise regimens were related to arterial stiffness, suggesting that more intense exercise may lead to increased stiffness of the large arteries.

"This is important because stiff arteries lead to high blood pressure and can impair the heart, keeping it from performing properly," Kardara said. "Overall, aortic stiffness is an indicator of cardiovascular disease and hardening of the arteries, and a predictor of heart attack and related death."

The researchers said there may be several explanations for the stiffer arteries found in marathoners. One is that extreme exercise may place repeated and excessive stress on the artery wall, leading to its fatigue, said Dr. Charalambos Vlachopoulos, also of Athens Medical School, Hippokration Hospital, and a co-investigator of the study.

"Endurance athletes should be cautious about the amount and volume of their training programs, trying not to wear themselves out, and always work in close collaboration with their physicians, especially before participating in an intense endeavor like marathon running, Kardara said.

More information

To learn more about exercise and heart health, visit the U.S. National Heart, Lung, and Blood Institute.



-- HealthDay staff



SOURCE: American College of Cardiology, news release, March 13, 2010


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Marathoners Share Tom Brady and LaDainian Tomlinson Pain Relief Affinity
2. Marathoners Go the Distance on Heart Health
3. Marathoners Face Greater Risk of Artery Stiffness
4. Prevalence of COPD Greater Than Thought
5. DuPont Focused on Meeting Global Demands for Greater Safety & Protection
6. Greater Baltimore Medical Center Taps Beryl for Customer Call Center Services
7. Kensey Nash Reports Acceleration of Stock Awards Triggered by Shareholder Acquisition of Greater Than 20% of Outstanding Shares
8. New strategies with greater antitumorous efficacy
9. Malaria product portfolio would benefit from greater cohesion amongst stakeholders
10. Greater China Corporation Forms TongRenTang Wellness Corporation
11. United Way of Greater Los Angeles Kicks Off Initiative to Prevent and End Homelessness With HomeWalk 2007
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/17/2017)... ... July 18, 2017 , ... ... its faster PICOPLUS 450 ps pulse width and a new published paper ... yttrium-aluminum-garnet lasers in tissue-mimicking phantom’ featured in Nature’s specialty journal Scientific Reports ...
(Date:7/17/2017)... ... July 17, 2017 , ... Summer camp season is ... ensure children are protected from Lyme and other tick-borne diseases. , With scientists ... increased risk not only for the tick-borne illness, but for its various debilitating ...
(Date:7/17/2017)... ... 17, 2017 , ... HMP , a leader in ... Texas Academy of Family Physicians (TAFP) for the 6th annual Cardiometabolic ... Hyatt Regency Dallas in Dallas, Texas.     , CRS and TAFP will collaborate to ...
(Date:7/17/2017)... ... July 17, 2017 , ... Jordan ... completed a nationwide executive search for Springfield Clinic’s Chief Executive Officer (CEO) in ... Williams, a skilled healthcare executive with more than 30 years of experience, as ...
(Date:7/17/2017)... CA (PRWEB) , ... July 17, 2017 , ... ProLayout ... These minimalistic layouts can be used to complement vlogs, professional productions, and to showcase ... click of a mouse. Manipulate camera controls to make beautiful and unique camera movements ...
Breaking Medicine News(10 mins):
(Date:7/5/2017)... Pace Analytical, a company of over 2,000 employees and a leader in environmental ... Sciences, further solidifying their position as the top American owned and operated environmental ... ... Analytical ... Mt Juliet, TN , enhances Pace Analytical,s capability as an innovative full ...
(Date:6/30/2017)... SAN DIEGO , June 30, 2017  AVACEN Medical (AVACEN) ... Access Journal. The research describes the use of its AVACEN ... by those suffering from fibromyalgia. ... AVACEN Medical ... Fibromyalgia is characterized by chronic widespread pain. It affects approximately 200 to ...
(Date:6/20/2017)... ROTTERDAM, Netherlands and LAGUNA HILLS, ... announced the presentation of new data that validate the ... to risk stratify patients with multiple myeloma (MM). In ... of the European Hematology Association (EHA) in ... prognostic value of MMprofiler for identifying high-risk elderly patients. ...
Breaking Medicine Technology: