HOME >> MEDICINE >> NEWS
Does endurance exercise promote life-threatening changes in athletes' hearts?

RV (end-diastolic volume, EDV), the volume of blood left in the RV after the heart had contracted (end-systolic volume, ESV) and the fraction of blood pumped out of the RV in each heart beat (ejection fraction, EF). In addition, they measured the change in the diameter of the part of the RV where the blood flows out to the arteries (RV outflow tract shortening fraction, SF), and the thickness of the ventricular walls.

Hein Heidbchel, professor of cardiology/electrophysiology and director of the clinical EP laboratory who led the team, explained: "Although arrhythmogenic right ventricular cardiomyopathy is a known cause of arrhythmias in athletes, we found that we could diagnose it unequivocally in only six of the 22 athletes (27%). However, we could assign arrhythmias as definitely or probably originating from the right ventricle in 82% of the patients an RV origin of the arrhythmia was manifest in 12 (55%) of the 22 and probable in six (27%) of them.

"All athletes had a higher end-diastolic RV volume compared to controls, as expected in an athlete's heart. Importantly, we found that athletes with VA had an RV end-systolic volume that was significantly higher than athletes without VA, and, accordingly, athletes with VA had a significantly lower RV ejection fraction. This significance remained after we had excluded two athletes with presumed ARVC because of a family history of arrhythmias or sudden death."

The decrease in EF was not profound (down by approximately a fifth) but consistent among all athletes with VA and consistent across all measurement methods. The difference between the two groups of athletes indicated that the RV was not fulfilling its function of pumping blood out from the heart effectively in those with VA.

Prof Heidbchel said: "Our study clearly demonstrates RV functional abnormalities in high-level endurance athletes with VA. The observed RV dysfunction is more subtle than in familial or overt ARVC. ARVC was
'"/>

Contact: Emma Mason
wordmason@mac.com
44-077-112-96986
Oxford University Press
21-Jan-2007


Page: 1 2 3 4

Related medicine news :

1. Speed and endurance are doled out by the pound
2. Traditional Chinese exercises may increase efficacy of flu vaccine
3. Even low levels of weekly exercise drive down blood pressure
4. Some women benefit more from exercise when emphasis is on health, not appearance
5. Strengthening exercises may slow progression of ALS
6. Research shows aerobic exercise helps maintain muscle in elderly
7. Study finds role of mid-brain in integrating heart and respiratory response to exercise
8. NISTs stretching exercises shed new light on nanotubes
9. Task force recommends greater use of exercise testing in chronic disease
10. USC-led study suggests exercise reduces risk of developing invasive breast cancer
11. What prevents doctors from counseling their patients to lose weight, exercise and quit smoking?

Post Your Comments:
(Date:8/28/2015)... ... August 28, 2015 , ... ... at the Zoo to celebrate children helping children, a thank you to the ... West Ohio have contributed to the United Methodist initiative to end malaria deaths. ...
(Date:8/28/2015)... ... August 28, 2015 , ... ... Devices:, Understanding the FDA’s Position and Best Practices for Compliance, **Presented by ... , This workshop, chaired by internationally renowned expert Fubin Wu, has been ...
(Date:8/28/2015)... ... August 28, 2015 , ... Saint Petersburg, FL —Pocket ... zero fat, carbs, sugar, gluten, lactose or caffeine in a convenient 2 oz. ... SupplySide CPG Editor’s Choice Awards. , Five consumer packaged goods (CPG) products were ...
(Date:8/28/2015)... TN (PRWEB) , ... August 28, 2015 , ... ... recipients of the Veterans Award, honoring military veterans leading in business. Mr. ... honorees. , The inaugural Nashville Business Journal's 2015 Veterans Awards will ...
(Date:8/28/2015)... ... August 28, 2015 , ... Northridge dentists Dr. Elyson and Dr. ... $199, patients can currently receive a one hour treatment of this teeth whitening option. ... includes a number of unique features that can turn teeth up to nine shades ...
Breaking Medicine News(10 mins):Health News:Saturday’s United Methodist Event at Columbus Zoo Celebrates Imagine No Malaria 2Health News:Saturday’s United Methodist Event at Columbus Zoo Celebrates Imagine No Malaria 3Health News:FDAnews Announces — Software and Cybersecurity Risk Management for Medical Devices: Understanding the FDA’s Position and Best Practices for Compliance, Oct. 14-15 2Health News:FDAnews Announces — Software and Cybersecurity Risk Management for Medical Devices: Understanding the FDA’s Position and Best Practices for Compliance, Oct. 14-15 3Health News:FDAnews Announces — Software and Cybersecurity Risk Management for Medical Devices: Understanding the FDA’s Position and Best Practices for Compliance, Oct. 14-15 4Health News:FDAnews Announces — Software and Cybersecurity Risk Management for Medical Devices: Understanding the FDA’s Position and Best Practices for Compliance, Oct. 14-15 5Health News:Pocket Protein™ Named 2015 CPG Editor’s Choice Award Finalist by Informa’s SupplySide 2Health News:Pocket Protein™ Named 2015 CPG Editor’s Choice Award Finalist by Informa’s SupplySide 3Health News:MyGenetx Board Member Receives Veterans Award 2Health News:Northridge Dentists Dr. Elyson and Dr. Assili Now Offer a Special Promotion on Zoom Teeth Whitening 2
(Date:8/28/2015)... , August 28, 2015 Insights- ... seamlessly connects people, technologies and care protoc ols across ... and the cost of healthcare delivery   ... presence at  ESC Congress 2015 , where the company is ... EchoNavigator and IntelliSpace Cardiovascular, that connect people and technology with ...
(Date:8/27/2015)... Aug. 27, 2015  The Academy of Managed ... Drug Administration,s (FDA,s) draft guidance and proposed rule ... biosimilars, to bear a nonproprietary name with an ... seeking a decision from the FDA on the ... care stakeholders urging the agency to use the ...
(Date:8/27/2015)... Calif. , Aug. 27, 2015 DURECT ... is scheduled to present at three upcoming healthcare conferences.  ... President and CEO, will present at the Rodman & ... a.m. Eastern time. The conference is being held at ... City . A live audio webcast of the ...
Breaking Medicine Technology:Philips Showcases New Integrated Cardiology Solutions to Advance Minimally Invasive Procedures at ESC Congress 2015 2Philips Showcases New Integrated Cardiology Solutions to Advance Minimally Invasive Procedures at ESC Congress 2015 3Philips Showcases New Integrated Cardiology Solutions to Advance Minimally Invasive Procedures at ESC Congress 2015 4AMCP Is Disappointed in FDA's Draft Guidance and Proposed Rule Calling for Suffix on Nonproprietary Names of Biological Products 2DURECT to Participate in Upcoming Healthcare Conferences 2
Cached News: