Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Those who exercise when young have stronger bones when they grow old

03.05.2010
The positive effects of exercise while growing up seem to last longer than previously believed. New findings suggest that physical activity when young increases bone density and size, which may mean a reduced risk of osteoporosis later in life, reveals a thesis from the Sahlgrenska Academy at the University of Gothenburg, Sweden.

For the thesis, around 3,200 men had their bones examined and their exercise habits mapped. Of these, just over 2,300 18-year-olds were selected at random to have their heel bone examined by the researchers. The heel bone is particularly useful to study as it is directly impacted by exercise, being loaded with the full weight of the body.

“In this group, we found that those who actively did sports, and also those who used to do sports, had greater bone density than those who had never done sports,” explains Martin Nilsson, physiotherapist and doctoral student at the Institute of Medicine.

The researchers also looked at bone density and structure in the lower leg in around 360 19-year-old men who had previously done sports but had now stopped training. They found that men who had stopped training more than six years ago still had larger and thicker bones in the lower leg than those who had never done sports.

... more about:
»Academy »Gothenburg »Medicine »Sahlgrenska »Swedish

“This result is particularly important, because we know that a bone with a large circumference is more durable and resistant to fractures than a narrower bone,” says Nilsson.

The researchers also studied bone density throughout the body in around 500 randomly selected 75-year-old men. Those who had done competitive sports three or more times a week at some point between the ages of 10 and 30 had higher bone density in several parts of the body than those who had not. The researchers have therefore established that there is a positive link between exercise while young and bone density and size. The connection is even stronger if account is taken of the type of sports done.

“The bones respond best when you’re young, and if you train and load them with your own bodyweight during these years, it has a stimulating effect on their development,” says Nilsson. “This may be important for bone strength much later in life too, so reducing the risk of brittle bones.”

OSTEOPOROSIS
Osteoporosis, or brittle bone disease, is very common in Sweden. Osteoporotic fractures affect one in two Swedish women and one in five Swedish men at some point in life. Brittle bones cause 70,000 fractures in Sweden annually, costing the health service almost SEK 5 billion a year. These fractures often result in reduced function and considerable suffering for the patients concerned.
For more information, please contact:
Registered physiotherapist and doctoral student Martin Nilsson, Institute of Medicine, Sahlgrenska Academy, tel: +46 (0)31 342 2964, mobile: +46 (0)76 871 9035, e-mail: martin.nilsson@medic.gu.se
Thesis for the degree of Doctor of Philosophy (Medicine) at the Department of Internal Medicine, Institute of Medicine, Sahlgrenska Academy.
Title of thesis: The role of physical activity on bone density and bone geometry in men

The thesis will be defended at 9 pm on Friday 16 April in the Arvid Carlsson lecture theatre, Academicum, Medicinaregatan 3, Gothenburg.

Helena Aaberg | idw
Further information:
http://hdl.handle.net/2077/21868
http://www.gu.se/

Further reports about: Academy Gothenburg Medicine Sahlgrenska Swedish

More articles from Health and Medicine:

nachricht Why might reading make myopic?
18.07.2018 | Universitätsklinikum Tübingen

nachricht Unique brain 'fingerprint' can predict drug effectiveness
11.07.2018 | McGill University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

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

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Global study of world's beaches shows threat to protected areas

19.07.2018 | Earth Sciences

New creepy, crawly search and rescue robot developed at Ben-Gurion U

19.07.2018 | Power and Electrical Engineering

Metal too 'gummy' to cut? Draw on it with a Sharpie or glue stick, science says

19.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>