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:12/22/2014)... Holiday Season may be the brightest ever for the ... long anticipated floodgates for consumer biometrics may finally be ... tablets, and wearable mobile devices that incorporate biometrics will ... nearly 4.8 billion biometric devices by 2020.   ...
(Date:12/19/2014)... Calif. , Dec. 18, 2014  23andMe, Inc., the leading ... that pinpoints fine-scale differences in genetic ancestry of individuals from ... Since immigrants first arrived more than four hundred years ago, ... a meeting place for peoples from different continents. This study ...
(Date:12/17/2014)... 2014 The Defense Logistics Agency is insourcing its ... counterfeit microcircuits from entering into its supply chain. ... anti-counterfeit initiative dubbed DNA marking. The capability will validate ... throughout the supply chain. The new quality control measures ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 223andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3
... The National Science Foundation has awarded Iowa State ... million grant to establish the NSF Engineering Research ... The award is part of the National ... Program. The third-generation Engineering Research Centers are designed ...
... utilize small, short-lived animals (insects, worms, mice) under ... parasites, superabundant food in the laboratory. Oddly ... such animals in their harsh, stressful natural environments. ... actually age much more slowly in captive luxury ...
... Bats, ability to echolocate may have evolved more than once, ... of London scientists. Species of bat with the ability ... tree of life - some are more related to their ... of whether echolocation in bats has evolved more than once, ...
Cached Biology News:Iowa State wins $18.5M grant to create NSF Center for Biorenewable Chemicals 2Iowa State wins $18.5M grant to create NSF Center for Biorenewable Chemicals 3Iowa State wins $18.5M grant to create NSF Center for Biorenewable Chemicals 4Old before their time? Aging in flies under natural vs. laboratory conditions 2Molecular evolution is echoed in bat ears 2
(Date:1/22/2015)... , a precision medicine software company that has developed a ... genomic, imaging and other biomedical data in research and clinical ... CEO of Aspera, an IBM Company, to its board as ... "We are pleased to welcome Michelle to ...
(Date:12/25/2014)... December 25, 2014 The report “Service ... Product Type & Provider Type - Global Advancements, Worldwide ... with an in-depth analysis and forecasting of revenues. ... through 221 pages and in-depth TOC on “Service Quality ...
(Date:12/24/2014)... , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. (NASDAQ: ... areas, announced the closing of an underwritten public offering of ... to an aggregate 3,500,000 shares of common stock, at an ... The warrants have a per share exercise price of $5.00, ...
(Date:12/24/2014)... Solutions , Inc. (NASDAQ: BLFS ), a leading ... storage and cryopreservation freeze media and ... or the "Company"), today announced that it will hold its ... "Annual Meeting"). Because the expected date for the ...
Breaking Biology Technology:GenoSpace Expands Board with Appointment of Michelle Munson 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3BioLife Solutions Sets Date for Annual Meeting of Stockholders 2
... global climate change and population growth call for sweeping changes ... a group of prestigious scientists, including an expert in plant ... team, led by Nina Federoff, science and technology adviser to ... "critical need to get beyond popular biases against the use ...
... , -- Leading ... to Offer Innovative Resource for all Ages and Stages of the ... For the more than 1.5 million Americans living with ... is far less frequent on key topics that impact the quality ...
... ... will learn how Microsoft® products, such as SharePoint and Office 2007, can be configured to ... to provide a cost-effective FDA regulated Quality System. , ... Bedford, MA (PRWEB) February 11, 2010 -- Business Intelligence Solutions ...
Cached Biology Technology:Dramatic changes in agriculture needed as world warms and grows, researchers say 2Davis Phinney Foundation Launches 'Every Victory Counts' Program to Inform and Empower People to Live Well With Parkinson's 2Davis Phinney Foundation Launches 'Every Victory Counts' Program to Inform and Empower People to Live Well With Parkinson's 3Davis Phinney Foundation Launches 'Every Victory Counts' Program to Inform and Empower People to Live Well With Parkinson's 4Davis Phinney Foundation Launches 'Every Victory Counts' Program to Inform and Empower People to Live Well With Parkinson's 5Lunch and Learn Workshop for New Jersey-based FDA-Regulated Companies 2
Plasmid expressing the LacZ reporter gene....
Plasmid expressing Zeocin resistance gene....
... These 2800mL wide mouth PYREX Fernbach-style ... the center of the flask bottom to ... These triple baffled flasks have a Delong-style ... stainless steel closures. For plastic closures see ...
... The kit provides a simple and efficient ... normal c lture using annexin V magnetic ... phospholipid binding protein with high affinity for ... provides a simple and efficient means for ...
Biology Products: