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:11/28/2014)... 28, 2014 An inventor and dental assistant ... a patient’s filling and it was almost impossible to reach. ... light," she said. , The patent-pending Access Light allows for ... to areas of the mouth, as well as avoids harm ... safety. Easy to use and clean, it also helps prevent ...
(Date:11/28/2014)... Hamilton, ON Canada (PRWEB) November 28, 2014 ... labels for the stuff kids lose® and an award-winning ... Julie Cole, Julie Ellis, Cynthia Esp, and Tricia Mumby ... Entrepreneur Award. They were recognized with the PROFIT Award ... Cole, Julie Ellis, Cynthia Esp, and Tricia Mumby) accepted ...
(Date:11/28/2014)... A newly released article from Community ... influenza virus that will soon be spreading across the United ... begins with a brief explanation of what the influenza virus ... that children under the age of 5, adults over the ... as heart and lung diseases, asthma, or diabetes, are at ...
(Date:11/28/2014)... Miami, FL (PRWEB) November 28, 2014 Lice ... service areas of its in-home head lice service for ... location in the center of Coral Gables on Pone De-leon ... in Bay Harbor Islands that service Miami-Dade & Broward. ... physical salon in South Florida which has been treating families ...
(Date:11/28/2014)... 28, 2014 "Most of my life, I ... use crutches," said an inventor from Findlay, Ohio. "I thought ... to support my foot, which inspired me to invent this ... a convenient way to support an injured foot. The sling ... eliminates the need for crutches. The design redistributes weight so ...
Breaking Medicine News(10 mins):Health News:Mabel's Labels’ Co-Founders Named A Winner In The 2014 RBC Canadian Women Entrepreneur Awards Program; A Second-Time Win For The Brand 2Health News:Mabel's Labels’ Co-Founders Named A Winner In The 2014 RBC Canadian Women Entrepreneur Awards Program; A Second-Time Win For The Brand 3Health News:How Flu Vaccines Can Impact Families Is Discussed in New Article from Community Health Center of Snohomish County 2Health News:Lice Troopers Lice Removal Service Expands in Miami-Dade 2
(Date:11/26/2014)... November 25, 2014 According ... by Power Source (Electric, Battery, Pneumatic), by Product ... Burr, Cart), by Application (Orthopedic, ENT, Oral, Thoracic, ... MarketsandMarkets, the global Powered Surgical Instruments Market is estimated ... in 2014 and is expected to grow at ...
(Date:11/26/2014)... 2014 Reinforcing its commitment to enabling confident ... PHG AEX: PHIA) today announced 510(k) clearance ... its IQon Spectral CT , presenting an entirely ... adds a new dimension to Computed Tomography (CT) imaging, ... structures based on their material content within a single ...
(Date:11/26/2014)... --  Heska Corporation (NASDAQ: HSKA ) - ... advanced veterinary diagnostic and other specialty veterinary products , ... attend The Benchmark Company, LLC,s Micro Cap Discovery Conference on ... at The Palmer House Hilton, 17 E. Monroe Street, ... p.m. Please email hska@haydenir.com or contact your Benchmark ...
Breaking Medicine Technology:Powered Surgical Instruments Market Worth $2.1 Billion by 2019 2Powered Surgical Instruments Market Worth $2.1 Billion by 2019 3Powered Surgical Instruments Market Worth $2.1 Billion by 2019 4Philips receives FDA 510(k) clearance for IQon Spectral CT 2Philips receives FDA 510(k) clearance for IQon Spectral CT 3Heska to Attend Benchmark Micro Cap Discovery Conference 2
Cached News: