Navigation Links
Mayo Clinic on the Summer Olympic Games: Better Athletes, the Physiology of Performance, the Lactate Threshold, the Aging Athlete and Much More
Date:7/31/2008

ogy and biochemistry behind it is complex and controversial, but it's a good marker of when the regulatory and physiological control systems of the body are in balance," Dr. Joyner says.

Old Wives' Tales - The Lactate Threshold

Intense exercise causes lactic acid levels to build up faster than the body can metabolize it. For athletes, this can be good because in the process of generating lactic acid, energy for muscle is also being generated. However, Dr. Joyner says, there are some misperceptions about lactate levels. Specifically:

* Lactate is not synonymous with muscle hypoxia: "The first misperception is that somehow people don't have enough oxygen when they are making lactic acid. That certainly can be true because lactic acid can come from a lack of oxygen, but under most circumstances the athletes have plenty of oxygen and there is plenty of oxygen in the muscle."

* Lactate is gone from the muscle in the 15 to 30 minutes after exercise and does not make you sore: "The second misnomer is that lactic acid hangs around in your muscle for long periods of time. You may hear things like this individual is sore or not performing as well today because they have a lot of lactic acid in their muscle from yesterday's event. Well, you can have very high levels of lactic acid in muscle, but it's gone 15 to 30 minutes after exercise - so lactic acid doesn't hang around a long time."

* Breathing oxygen on the sidelines does not help enhance lactate levels: "Breathing oxygen on the sidelines really doesn't help - there's no evidence that it works."

Running Economy

How well your muscles use oxygen and how well they can metabolize glucose without producing a lot of lactic acid in the skeletal muscle (which can contribute to fatigue) are both important for performance, Dr. Joyner says. However, how much speed you can generate at the lactate threshold is also important. This is known as running efficiency or running economy. Runne
'/>"/>

SOURCE Mayo Clinic
Copyright©2008 PR Newswire.
All rights reserved

Page: 1 2 3 4 5 6 7

Related medicine news :

1. The Journal of Allergy and Clinical Immunology devotes special issue to AIDS
2. Escalon(R) Receives FDA 510(k) Clearance to Market the LIASYS(TM) Clinical Chemistry and Immunoturbidimetric Analyzer
3. Explosive Growth in Medical Tourism and Rise of Retail Clinics Provide Huge Cost Savings for Patients
4. Magellan Biosciences Companies to Feature Diagnostic Products Designed to Improve Health Outcomes at the Clinical Lab Expo
5. Hospital Clínic participates in ICREL project about European legislation on clinical trials
6. Clinical Trial Concluded For New Wrinkle Treatment
7. Clinical Trial for the Treatment of Inflammatory Bowel Disease Begins at Tel Aviv Sourasky Medical Center
8. Vertos Medical Inc. Presents Clinical Data of its MILD™ Procedure at the 5th Annual Innovative Techniques in Spine Surgery Conference in Los Cabos, Mexico
9. North Carolinas Center For Advanced Medicine & Clinical Research Celebrates Opening of New LKN Medical Spa and Rejuvenation Center
10. Brain cancer study: Magnitude of post-vaccine immune response linked to clinical outcomes
11. July 2008 Mayo Clinic Health Letter Highlights Bone Health, Causes of Swelling and Slimmed-Down Desserts
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... Key West Health & Beauty’s ( http://www.keywesthealthandbeauty.com ... anticipated study results of the 12 best and worst ... accompanying infographic on their website. It appears that the ... impact on the skin and contribute to many unwanted ... asked how they determined the results, founder and skin ...
(Date:8/22/2014)... Medical Oncology (ESMO), the leading pan-European organisation representing ... three outstanding individuals receiving the Society,s esteemed annual ... Bokemeyer, Heikki Joensuu and Peter Boyle on the ... Madrid, Spain. , Carsten Bokemeyer will receive the ... transition of cancer discovery into real benefit at ...
(Date:8/22/2014)... in Sweden provides insight on how the brain processes ... different sources and sides of the body, in order ... are presented in the journal Neuron , show ... various types of sensory information, with specialised functional roles ... the main input structure in the basal ganglia, and ...
(Date:8/22/2014)... Oncology (ESMO), the leading pan-European organisation representing medical ... outstanding individuals receiving the Society,s esteemed annual awards. ... Heikki Joensuu and Peter Boyle on the occasion ... Spain. , Carsten Bokemeyer will receive the ESMO ... of cancer discovery into real benefit at patient ...
(Date:8/22/2014)... air in American cities is getting safer to breathe, ... progress has been made in reducing levels of harmful ... said in a news release. Since 1990, there ... from human sources such as coal-fired plants, a 66 ... in lead, which harms brain development in children. ...
Breaking Medicine News(10 mins):Health News:Key West Health & Beauty Announces The 12 Best & Worst U.S. Cities For Skin Study 2Health News:ESMO honors outstanding oncology professionals 2Health News:ESMO honors outstanding oncology professionals 3Health News:The striatum acts as hub for multisensory integration 2Health News:ESMO honours outstanding oncology professionals 2Health News:ESMO honours outstanding oncology professionals 3Health News:Air in U.S. Cities Getting Cleaner, EPA Says 2
... food cravings and keeping them in check may be ... first six-month phase of the study provides new insights ... their role in weight control. ,Cravings are ... Susan Roberts, PhD, director of the USDA HNRCAs Energy ...
... typically graduate students hired to help undergrads with their ... expert Bernardo J. Carducci said social assistants, people ... and social skills, should become staples, as well. ... Research Institute at IU Southeast, are no different than ...
... industrial body recognizing the downward trend of access to quality ... reverse the situation- more money and a significant private-public partnership. ... Chambers of Commerce and Industry (FICCI), India needs to spend ... of achieving 'Health for all' is to be attained by ...
... is considered a healthy role model the world over, but ... land of the rising sun. ,Japan's health ministry estimates ... age of 40 is obese and experts have identified a ... ,"The everyday habits among the Japanese have become ...
... what boys lose in the process of circumcision turns ... penis. ,The long-term-health impact of neo-natal ... circumcision on sexual function in the adult male have ... recent study, by M. Sorrels and colleagues from the ...
... but they plan to add to their family in a big way ... Stewart inquired as to just how many kids Angelina wanted in all, ... as many as 14 little ones. ,"Hmm, it fluctuates between ... tewart then praised her by saying, "Wow, I'll tell you this: I ...
Cached Medicine News:Health News:Weight Management Achieved by Controlling and Not Suppressing Food Cravings 2Health News:Binge Drinking on College Campuses is a Matter of Fear, Not Freedom 2Health News:Binge Drinking on College Campuses is a Matter of Fear, Not Freedom 3Health News:FICCI Proposes Models To Solve Indias Healthcare Crisis 2Health News:Japanese are Weighed Down by Deviating from Their Traditional Diet 2
(Date:8/22/2014)... Aug. 22, 2014   Zacks Equity Research highlights Epizyme ... the Day and Panera (Nasdaq: PNRA - Free Report ) ... provides analysis on Amicus Therapeutics (Nasdaq: FOLD - Free Report ... (Nasdaq: SHPG - Free Report ). Here is ... of the Day : The biotech bull market ...
(Date:8/22/2014)... Research and Markets has announced the addition ... Report 2014" report to their offering. ... 2014 is a professional and in-depth study on the ... a focus on the Chinese situation. The report ... classifications, applications and industry chain structure. The particulate respirators ...
(Date:8/22/2014)... , Cali ., Aug. 22, 2014 ... Papillomavirus Conference shows that a therapy being developed by Hera ... two that cause 70 percent of all cervical cancer. ... blocked the replication of HPV-16, HPV-18 and HPV-11 cells, according ... Broker , Ph.D., who presented the findings at the ...
Breaking Medicine Technology:Epizyme, Panera, Amicus Therapeutics, Sanofi and Shire highlighted as Zacks Bull and Bear of the Day 2Epizyme, Panera, Amicus Therapeutics, Sanofi and Shire highlighted as Zacks Bull and Bear of the Day 3Epizyme, Panera, Amicus Therapeutics, Sanofi and Shire highlighted as Zacks Bull and Bear of the Day 4Epizyme, Panera, Amicus Therapeutics, Sanofi and Shire highlighted as Zacks Bull and Bear of the Day 5Epizyme, Panera, Amicus Therapeutics, Sanofi and Shire highlighted as Zacks Bull and Bear of the Day 6Global and Chinese Particulate Respirators Industry Report 2014 2Study shows Hera Therapeutics experimental compound shuts down human papillomavirus that causes most cervical cancer 2
... DIEGO, Jan. 31, 2011 Volcano Corporation (Nasdaq: ... of Massachusetts has issued a decision that ruled in ... Inc., and against LightLab Imaging, Inc., on all of ... 11-page decision also rejected LightLab,s request for injunctive relief. ...
... its continuing partnerships with Brazilian public health authorities and ... Mr. Nelson dos Santos as interim vice president of ... nonprofit organization whose mission is to improve the health ... programs that help ensure the quality, safety and benefit ...
Cached Medicine Technology:Massachusetts Court Rules in Favor of Volcano and Against St. Jude Medical Subsidiary in Trade Secrets Case 2New Interim Leadership for USP-Brazil 2
Extremely wide blade opening. Excellent bio and MRI compatibility. Lot number on each clip. Long reliable history. Large type 1/1 (mm), opening width 8.0 mm and length 7.5 mm....
Extremely wide blade opening. Excellent bio and MRI compatibility. Lot number on each clip. Long reliable history. Large type 1/1 (mm), opening width 7.0 mm and length 7.7 mm....
Extremely wide blade opening. Excellent bio and MRI compatibility. Lot number on each clip. Long reliable history. Large type 1/1 (mm), opening width 8.0 mm and length 5 mm....
Extremely wide blade opening. Excellent bio and MRI compatibility. Lot number on each clip. Long reliable history. Large type 1/1 (mm), opening width 13.0 mm and length 12 mm....
Medicine Products: