Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

UW Health Sports Medicine Center weighs in on body fat

23.06.2004


How low can you go...safely?

Thanks to a landmark study involving the UW Health Sports Medicine Center, physicians and coaches can evaluate the effectiveness of methods widely used to measure body composition and predict the minimum weight an athlete should maintain.

Using a four-component model that included independent assessment of bone, body fat, muscle and total body water, 53 Division-I collegiate athletes were measured, yielding a precise reading that allowed for the accurate prediction of a minimum weight. The study was conducted in response to a call by the National Federation of State High School Associations (NFSHA) mandating that all states develop a minimum-weight certification program modeled after the one established by the Wisconsin Interscholastic Athletic Association (WIAA) in 1993. The findings appear in a recent edition of Medicine & Science in Sports & Exercise, the journal of the American College of Sports Medicine.



More than just a topic for exercise scientists, the issue of minimum weight prediction closely affects high school and college athletes, particularly wrestlers. In recent years, several athletes have died--including three wrestlers in a span of 33 days in 2003--after using unsafe weight loss practices in order to compete in a lower weight class. But Randy Clark, the manager of UW Health Sports Medicine’s Exercise Science Laboratory and the study’s first author, says the findings also have important implications for the national fight against pediatric obesity.

"Body composition has never been a more important issue than it is today," says Clark. "It’s always been an important component when evaluating athletes, but it’s equally important for this generation of children. This is the first generation in history that will have a shorter life expectancy than that of their parents. Reduced activity, excess body fat and excess body weight are important factors bringing about this sad fact."

For years, physicians have used the body-mass index (BMI) to roughly gauge body composition, assigning individuals a number based on a ratio between height and weight. Clark hopes that an actual measure of body composition will soon become an important component of everyone’s physical exam, not just athletes.

UW Health Sports Medicine is also involved in a new research study called Fit-4-Life. The program has shown positive changes in body composition, fitness level, and insulin sensitivity using a lifestyle-focused physical education curriculum for students at River Bluff Middle School in Stoughton.

"We are applying ideas and concepts previously reserved for elite athletes to children, particularly a new generation of kids who are struggling with weight issues," says Clark. "They love it. They feel like heroes, and it’s the first time they have enjoyed a physical education class. Parents thank us for changing the dynamics of their family and making physical activity fun again. This is every bit as rewarding as our work with major college athletics."

UW Health Sports Medicine was instrumental in developing both the Fit-4-Life program and the minimum weight standards used by the NCAA, WIAA and NFSA. Under the new guidelines, the more than 10,000 male high-school wrestlers in Wisconsin (and 100,000 nationally) must maintain at least 7 percent body fat, while college-level wrestlers must maintain at least 5 percent.

"Eventually these minimum weight standards may be adopted by other sports where leanness is a concern, like track and field, cross-country, lightweight rowing, gymnastics and ice skating," says Clark. "Too little body fat and too much body fat are both serious medical concerns."

Aaron R. Conklin | EurekAlert!
Further information:
http://www.wisc.edu
http://www.uwhealth.org

More articles from Studies and Analyses:

nachricht A sudden drop in outdoor temperature increases the risk of respiratory infections
11.01.2017 | University of Gothenburg

nachricht Urbanization to convert 300,000 km2 of prime croplands
27.12.2016 | Mercator Research Institute on Global Commons and Climate Change (MCC) gGmbH

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: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>