Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

UGA researchers find caffeine reduces muscle pain during exercise

16.09.2003


That cup of coffee in the morning does more than wake you up. It can also help you feel less pain during your morning workout.



That’s what researchers at the University of Georgia have found in a recent study exploring why muscles hurt during exercise. The research group previously learned that aspirin, though commonly used to treat muscle pain, did not reduce muscle pain produced by vigorous exercise.

"Muscle contractions produce a host of biochemicals that can stimulate pain. Aspirin blocks only one of those chemicals," said Patrick O’Connor, professor of exercise science in UGA’s College of Education. "Apparently the biochemical blocked by aspirin has little role in exercise-induced muscle pain."


The researchers’ latest study, published in the August issue of the Journal of Pain, found that caffeine reduced thigh muscle pain during cycling exercise. Participants in the study, 16 nonsmoking young adult men, cycled for 30 minutes on two separate days. The exercise intensity was the same on both days and purposefully set to make the riders’ thigh muscles hurt. Participants in the study took either a caffeine pill or a placebo pill one hour before the exercise. The riders reported feeling substantially less pain in their thigh muscles after taking caffeine compared to after taking the placebo.

This observation suggests that prior reports showing that caffeine improves endurance exercise performance might be explained partially by caffeine’s hypoalgesic properties, according to O’Connor.

"Not all analgesics or combinations [acetaminophine and caffeine] are effective for every type of pain or every individual," he said. "Much of this is due to biological variation among people in receptors for the drugs as well as variation in pain receptors in different body tissues. For instance, brain tissue has no pain receptors so surgery can be done on the brain without anesthesia. Of course it will hurt getting through the skin and cranium."

Caffeine also seems to work less well for heavy caffeine users who habituate because of a change in receptors with caffeine use, O’Connor said.

Prior research has focused on other types of pain, such as headaches, joint or skin pain, toothaches or pain in damaged muscles at rest, maybe a few days after being injured during exercise. The UGA researchers’ work focuses on pain that occurs naturally with muscles contracting during exercise.

"The next step is to learn how caffeine helps people feel less muscle pain during exercise" said Robert Motl, lead author of the study and an assistant professor of kinesiology at the University of Illinois. "Evidence suggests that caffeine works by blocking the actions of adenosine, however, we don’t know yet whether the caffeine is acting on muscles or the brain."

Motl, who received his doctorate from UGA in 2002, also worked

Michael Childs | EurekAlert!
Further information:
http://www.uga.edu/

More articles from Health and Medicine:

nachricht NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures
17.11.2017 | National Institute of Standards and Technology (NIST)

nachricht High speed video recording precisely measures blood cell velocity
15.11.2017 | ITMO 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: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

Antarctic landscape insights keep ice loss forecasts on the radar

20.11.2017 | Earth Sciences

Filling the gap: High-latitude volcanic eruptions also have global impact

20.11.2017 | Earth Sciences

Water world

20.11.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>