Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New findings on menstrual disorders in elite athletes

17.04.2008
It has long been assumed that menstrual disorders amongst elite female athletes are related to tough training regimes combined with insufficient energy intake.

However, a new doctoral thesis from the Swedish medical university Karolinska Institutet overturns old ideas that elite sport can damage the health. Many elite female athletes can have a congenital condition, that gives them higher levels of testosterone and that might even contribute to their sporting successes.

“What we’re dealing with is just a tiny increase in levels, which can make it easier for the women to build muscle mass and absorb oxygen,” says Magnus Hagmar, postgraduate at the Department of Woman and Child Health. “This means that they might have got quicker results from their training and therefore been encouraged to train harder and more often.”

Polycystic ovary syndrome (PCOS) is a common and congenital cause of menstrual disorder that, amongst other things, can lead to a slight increase in testosterone production. Magnus Hagmar now shows in his thesis not only that PCOS is often behind menstrual disorders in elite Olympic athletes, but also that polycystic ovaries – part of PCOS – were more common amongst elite Olympic athletes (37 per cent) than amongst women on average (20 per cent).

“It’s particularly interesting that the percentage of women with polycystic ovaries was higher in power sports like ice hockey and wrestling than in technical sports like archery and curling,” says Dr Hagmar.

Dr Hagmar stresses that the results have nothing to do with doping. The 90 elite athletes that took part in the study have taken regular drug tests, all of them negative. He believes that the studies overturn old notions that female sporting performance can damage the health.

A central issue in elite-level women’s sport in recent years has been the ‘female athlete triad’, whereby tough training combined with low energy intake has been thought to contribute to menstrual disorder and subsequent low bone density (osteopenia) caused by low levels of oestrogen. However, this new study now shows that elite female athletes, despite menstrual disorders, have very strong bones. In sports where low body-weight is an advantage, women also generally have a healthier way of controlling their weight than their male counterparts.

“We cannot completely rule out low energy intake as a cause of menstrual disorder in elite athletes, there were one case in these studies too, but it is far from the most common cause,” says Mr Hagmar. “The fact that not a single woman had low bone density takes away one of the factors of the female athlete triad.”

Magnus Hagmar is assistant senior physician at the women’s clinic at Karolinska University Hospital, in Stockholm, and carried out his studies in association with the Swedish Olympic Committee (SOC). One of the studies involved 223 men and women who had competed in the 2002 and 2004 Olympic Games. Another involved 90 women, all of whom are in training for the 2008 Olympics.

Doctoral thesis: ‘Menstrual status and long-term cardiovascular effects of intense exercise in top elite athlete women’, Magnus Hagmar, Department of Woman and Child Health. The public defence will take place in Stockholm on Friday 18 April 2008.

Katarina Sternudd | alfa
Further information:
http://diss.kib.ki.se/2008/978-91-7357-549-2/

More articles from Studies and Analyses:

nachricht Multi-year study finds 'hotspots' of ammonia over world's major agricultural areas
17.03.2017 | University of Maryland

nachricht Diabetes Drug May Improve Bone Fat-induced Defects of Fracture Healing
17.03.2017 | Deutsches Institut für Ernährungsforschung Potsdam-Rehbrücke

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>