HOME >> BIOLOGY >> NEWS
Muscles are smarter than you think

Scientists at La Trobe University in Melbourne, Australia, and at the University of Aarhus in Denmark, have discovered the mechanism by which acidity helps prevent muscle fatigue.

The discovery runs in the face of the previously held belief among physiologists and athletes that acidity, through a build up of lactic acid, is a major cause of muscle fatigue.

Professors George Stephenson and Graham Lamb of La Trobe's Muscle Research Laboratory and Mr Thomas Pedersen and Professor Ole Nielsen from the University of Aarhus, presented their findings to the scientific world in Science, the journal of the American Association for the Advancement of Science, published today (August 20).

Mr Pedersen, a Danish PhD student from the University of Aarhus, came to work for six months in the Muscle Research group to carry out the project with Professors Stephenson and Lamb using a technique developed in their laboratory by which the surface membrane of single muscle fibres--which are half the thickness of a human hair-- is peeled away, without interfering with the ability of the muscle fibre to contract normally to electrical stimulation. This enabled the researchers to change conditions inside the muscle cells and study the effects of acidity on the force response.

'We found that muscles play a "clever trick" in which they use acidosis--the build-up of acid--to help ensure that they keep responding properly to nerve signals and so avoid the fatigue that would otherwise occur,' said Professor Lamb.

Collaboration between La Trobe and Aarhus universities started in 2002 when Professor Nielsen came as a Distinguished Visiting Scholar at La Trobe's Institute of Advanced Study to work for a month in the Muscle Research Laboratory.

Professor Nielsen had recently demonstrated for the first time that acidity could be beneficial to muscle performance, although it was not clear how this occurred.

The La Trobe/Aarhus team identif
'"/>

Contact: Professor George Stephenson
george.stephenson@latrobe.edu.au
61-39-479-1775
La Trobe University
19-Aug-2004


Page: 1 2

Related biology news :

1. New Gene Therapy Strategy Keeps Muscles Strong In Old Age: Possibilities Seen For Disease Treatment, But Also For Athletic Or Cosmetic Enhancements
2. University Of Texas Southwestern Researchers Find Genetic Switch That Explains Effect Of Exercise On Muscles
3. Motivating Muscles: New UD Study Might Help People With Paralysis Stay Strong Longer
4. Female birds choose best singers to have smarter offspring
5. Rare deficit maps thinking circuitry
6. What are babies thinking before they start talking?
7. New book urges ecologists to think outside the helmet
8. UF researcher: Animals think in their own way, but unlike humans
9. East African artifacts support evolution of symbolic thinking in Middle Stone Age
10. Can heart failure impair thinking?
11. Progeria: Facing old age is hard facing it during childhood is unthinkable

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Muscles are smarter than you think

(Date:4/17/2014)... German . ... also provide us with a continuous stream of information about ... sit still in a car the world glides by ... Seemingly without effort, our brain calculates self-motion from this "optic ... a steady gaze during our own movements. Together with biologists ...
(Date:4/17/2014)... House honored Clemson professor Rajendra Singh Thursday as ... promote and expand solar deployment in the residential, ... Houser Banks Professor of Electrical and Computer Engineering ... is considered a local hero leading the charge ... opportunity in solar power and driving policy changes ...
(Date:4/17/2014)... hit on a novel method to help kidney ... most effective treatment possible., Kidney stones represent a ... world. If left untreated, apart from being particularly ... other complications. In many patients treated successfully, stone ... effective pathological approach to diagnosis and treatment needs ...
Breaking Biology News(10 mins):How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
(Date:1/15/2014)... (PRWEB) January 15, 2014 DTS Language ... its Online Web Portal for Life Science organizations who need ... specify the subject matter of their documents in advance with ... help reduce time-to-delivery of translations, often a critical factor in ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of Notched Sound ... Patients listen to sound therapy that is tailor-made for ... to months, their tinnitus volume decreases. , AudioNotch has previously ... Notched White Noise. Now, AudioNotch is pleased to announce to ...
(Date:1/14/2014)... Washington, DC (PRWEB) January 14, 2014 ... session for Thursday, January 23, 2014 at 2pm EST ... Actionable Knowledge.” The topic focuses on how technology can ... mission critical decisions for government agencies. The online webinar ...
(Date:1/14/2014)... 2014 As pet owners drew up their lists of New ... "Take better care of my furry companion." Nowadays there are pet ... carrying cases to take the little canine or feline darlings along ... to buy some pricey toys at the pet store. But anyone ...
Breaking Biology Technology:DTS Improves Efficiency for Life Science Document Translations 2Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2
Cached News: