Navigation Links
Lactic acid not athlete's poison, but an energy source - if you know how to use it

In the lore of marathoners and extreme athletes, lactic acid is poison, a waste product that builds up in the muscles and leads to muscle fatigue, reduced performance and pain.

Some 30 years of research at the University of California, Berkeley, however, tells a different story: Lactic acid can be your friend.

Coaches and athletes don't realize it, says exercise physiologist George Brooks, UC Berkeley professor of integrative biology, but endurance training teaches the body to efficiently use lactic acid as a source of fuel on par with the carbohydrates stored in muscle tissue and the sugar in blood. Efficient use of lactic acid, or lactate, not only prevents lactate build-up, but ekes out more energy from the body's fuel.

In a paper in press for the American Journal of Physiology - Endocrinology and Metabolism, published online in January, Brooks and colleagues Takeshi Hashimoto and Rajaa Hussien in UC Berkeley's Exercise Physiology Laboratory add one of the last puzzle pieces to the lactate story and also link for the first time two metabolic cycles - oxygen-based aerobic metabolism and oxygen-free anaerobic metabolism - previously thought distinct.

"This is a fundamental change in how people think about metabolism," Brooks said. "This shows us how lactate is the link between oxidative and glycolytic, or anaerobic, metabolism."

He and his UC Berkeley colleagues found that muscle cells use carbohydrates anaerobically for energy, producing lactate as a byproduct, but then burn the lactate with oxygen to create far more energy. The first process, called the glycolytic pathway, dominates during normal exertion, and the lactate seeps out of the muscle cells into the blood to be used elsewhere. During intense exercise, however, the second ramps up to oxidatively remove the rapidly accumulating lactate and create more energy.

Training helps people get rid of the lactic acid before it can build to the point where it causes mu
'"/>

Source:University of California - Berkeley


Page: 1 2 3 4

Related biology news :

1. Growth in biomass could put US on road to energy independence
2. Hydrogen and methane provide raw energy for life at Lost City
3. Study of energy and health in Africa focuses spotlight on charcoal and forest management
4. UCSD study clarifies insulins role in blocking release of energy in patients with type II diabetes
5. Ethanol and biodiesel from crops not worth the energy
6. Free-energy theory borne out in large-scale protein folding
7. Odd energy mechanism in bacteria analyzed
8. Environmental metagenomics diagnosing extreme environments, tapping opportunities for clean energy
9. Taking evolutions temperature: Researchers pinpoint the energy it takes to make a species
10. Johns hopkins researchers find link between cells energy use and genome health
11. Research highlights how bacteria produce energy
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Lactic acid not athlete poison but energy source you know how use

(Date:9/18/2014)... Sydney, September 18, 2014 Elsevier, a world-leading ... and services, and the Australasian Research Management Society ... young scientists at the 5th Scopus Young Researcher ... held earlier today at the National Convention Centre ... conference, was attended by guests representing Australia,s and ...
(Date:9/18/2014)... to 400 kilometres in search of a home, which makes ... spend their entire adult lives under the protection of their ... ocean, says study co-author, Dr Hugo Harrison from the ARC ... James Cook University. , "In the past we haven,t known ... glimpse into how far they can swim, crossing large tracts ...
(Date:9/17/2014)... has received a $260,000 grant from the Andrew W. ... the Human in the Age of the Life Sciences." ... events aimed at exploring two compelling themes in the ... are exploring the boundaries of our self-definition as a ... involves the increasingly influential hypothesis that we are living ...
Breaking Biology News(10 mins):Elsevier and Australasian Research Management Society award scientists at Scopus ceremony 2Nemo's epic journey to find a new home 2Mellon Foundation awards grant for major project in the humanities and sciences 2
... female of its species can extend the reproductive life of a ... reported at the online site of the journal Biology of ... the University of Pennsylvania School of Veterinary Medicine, male mice were ... Each male was placed with two novel females at 2-month intervals ...
... NY, January 22, 2009--Biotechnology companies are building on ... the past decade and are expected to drive ... reports Genetic Engineering and Biotechnology News ... offers a number of advantages, including reducing reagent ...
... in the journal Nature , researchers led by ... in the Kimmel Cancer Center at Jefferson, discovered a ... AIM2 (absent in melanoma 2), is involved in the ... produced by infection with viral or microbial pathogens, or ...
Cached Biology News:GEN reports on growing reliance on microfluidics technology 2Jefferson scientists discover a key protein regulator of inflammation and cell death 2
(Date:9/19/2014)... Jose, California (PRWEB) September 19, 2014 ... Nanotechnology and its potential to revolutionize the world ... agencies, multinational corporations and small start-ups. The early ... funded research projects largely due to the high ... investments. Government budgets earmarked for this evolving technology ...
(Date:9/19/2014)... , Sept. 19, 2014 Pfenex Inc. ... the development of high-value and difficult to manufacture proteins ... presenting at the 21 st Annual NewsMakers in ... . Bertrand Liang , chief executive officer ... development programs and business strategy on Friday, September 26, ...
(Date:9/19/2014)... -- Dublin ... the addition of the  "Micro Market Monitor : ...      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , , ,The ... segments in the chromatography market. The market was ... to reach $2.0 billion by 2019, at a ...
(Date:9/18/2014)... 18, 2014 HealthTronics, Inc ... interventional radiology products and services, announced that a ... and cryoablation) versus external beam radiotherapy (EBRT) is ... American Urological Association (MAAUA) Annual Meeting in Baltimore, ... Effectiveness of Cryosurgery and External Beam Radiation as ...
Breaking Biology Technology:Growing R&D Investments & Developments in Nanomaterials to Drive the Global Nanotechnology Market, According to New Report by Global Industry Analysts, Inc. 2Growing R&D Investments & Developments in Nanomaterials to Drive the Global Nanotechnology Market, According to New Report by Global Industry Analysts, Inc. 3Growing R&D Investments & Developments in Nanomaterials to Drive the Global Nanotechnology Market, According to New Report by Global Industry Analysts, Inc. 4Pfenex to Present at Upcoming Industry Conference on September 26 2Micro Market Monitor : Global Pre-packed Chromatography Columns 2HealthTronics Announces Data Comparing Cryotherapy Versus Radiation for Treating Prostate Cancer Poster Presented at the American Urological Association Regional Meeting 2
... ORLEANS , May 3 The American ... American Gastroenterological Association (AGA)Institute today announced an innovative ... ," at Digestive Disease Week ® 2010.  The peer-driven ... front lines of the diagnosis and treatment of hereditary ...
... , May 3, 2010 PolyTouch Medical Ltd., a,leading ... filed a Premarket 510(k) Application with the US Food,and Drug Administration ... accurate mesh placement in,laparoscopic ventral hernia repair potentially reducing procedure time ... ...
... ... In a bid to develop new feedstocks with greater sustainability and ... to meet the growing demand, of biodiesel CJP’s R & D centre ... biodiesel crops and has identified, developed and cultivated as many as 14 ...
Cached Biology Technology:ACAAI and AGA Partner to Raise Awareness of Hereditary Angioedema Through 'HAE: Learn About It, Talk About It' 2ACAAI and AGA Partner to Raise Awareness of Hereditary Angioedema Through 'HAE: Learn About It, Talk About It' 3ACAAI and AGA Partner to Raise Awareness of Hereditary Angioedema Through 'HAE: Learn About It, Talk About It' 4ACAAI and AGA Partner to Raise Awareness of Hereditary Angioedema Through 'HAE: Learn About It, Talk About It' 5PolyTouch Medical Ltd. Announces the Submission of a Premarket Application for PatchAssist - an Innovative Mesh Deployment and Placement Device for Laparoscopic Hernia Repair 2PolyTouch Medical Ltd. Announces the Submission of a Premarket Application for PatchAssist - an Innovative Mesh Deployment and Placement Device for Laparoscopic Hernia Repair 3CJP Assesses Pongamia, Moringa, Castor, Simarouba, Algae etc. as New Sustainable Biodiesel Crops 2CJP Assesses Pongamia, Moringa, Castor, Simarouba, Algae etc. as New Sustainable Biodiesel Crops 3CJP Assesses Pongamia, Moringa, Castor, Simarouba, Algae etc. as New Sustainable Biodiesel Crops 4
Monoclonal Anti-Cystatin A tissue culture supernatant Solution containing 15 mM sodium azide human cystatin A ...
... Series are a line of pre-integrated ... fast and reliable automated solutions to ... "automation-friendly" building blocks, Caliper has created ... than conventional approaches, take up little ...
... Guava has made microcapillary flow cytometry accessible ... experts alike will appreciate the latest addition ... Pluseasy to use, surprising affordable, and very ... system includes such features as absolute cell ...
... Rotator, variable speed, timer, SB3, Fully ... Choice of tube holders to hold a ... The SB3 is ideal for aerating cultures, ... general mixing applications., The rotator can be ...
Biology Products: