Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Low-intensity exercise reduces fatigue symptoms by 65 percent

03.03.2008
Sedentary people who regularly complain of fatigue can increase their energy levels by 20 percent and decrease their fatigue by 65 percent by engaging in regular, low intensity exercise, according to a new University of Georgia study.

“Too often we believe that a quick workout will leave us worn out – especially when we are already feeling fatigued,” said researcher Tim Puetz, who recently completed his doctorate at UGA and is the lead author of the study. “However, we have shown that regular exercise can actually go a long way in increasing feelings of energy – particularly in sedentary individuals.”

Puetz co-authored the study with professor Patrick O’Connor, co-director of the UGA Exercise Psychology Laboratory, and former UGA student Sara Flowers. The team’s results appear in the February issue of the journal Psychotherapy and Psychosomatics.

O’Connor said previous studies – including one that he and Puetz co-authored in 2006 – have shown that exercise can significantly improve energy levels and decrease fatigue. Those studies, however, primarily looked at patients with medical conditions such as cancer, heart disease and mental health problems. In this latest study, the researchers studied volunteers who had fatigue that was persistent yet didn’t meet the criteria for a medical condition such as chronic fatigue syndrome. O’Connor said about 25 percent of the general population experiences such fatigue.

“A lot of people are overworked and not sleeping enough,” O’Connor said. “Exercise is a way for people to feel more energetic. There’s a scientific basis for it, and there are advantages to it compared to things like caffeine and energy drinks.”

The researchers recruited 36 volunteers who did not exercise regularly and had reported persistent fatigue based on a commonly used health survey. The volunteers were divided into three groups: The first engaged in 20 minutes of moderate-intensity aerobic exercise three times a week for six weeks; the second engaged in low-intensity aerobic exercise for the same time period; the control group did not exercise.

The low- and moderate-intensity groups had a 20 percent increase in energy levels over the control group. Surprisingly, the low-intensity group had a greater reduction in fatigue levels than the moderate-intensity group, 65 percent compared to 49 percent, respectively.

“It could be that moderate-intensity exercise is too much for people who are already fatigued,” O’Connor said, “and that might contribute to them not getting as great an improvement as they would had they done the low-intensity exercise.”

He adds that energy and fatigue aren’t exactly opposites of each other. A student who stays up late to finish a term paper may feel fatigued, for example, but may also feel energized as she nears the end of the paper.

The volunteers in the study used exercise bikes that allowed the researchers to control their level of exertion so that low-intensity exercise was defined as 40 percent of their peak oxygen consumption and moderate-intensity exercise was defined as 75 percent of peak oxygen consumption. For comparison, O’Connor said a leisurely, easy walk is low-intensity exercise, while a fast-paced walk with hills is moderate-intensity exercise.

The team’s analysis also found that the improvements in energy and fatigue were not related to increases in aerobic fitness that the exercisers experienced. Puetz said the finding suggests that exercise acts directly on the central nervous system to increase energy and reduce fatigue.

“Exercise traditionally has been associated with physical health, but we are quickly learning that exercise has a more holistic effect on the human body and includes effects on psychological health,” Puetz said. “What this means is that in every workout a single step is not just a step closer to a healthier body, but also to a healthier mind.”

Sam Fahmy | EurekAlert!
Further information:
http://www.uga.edu

More articles from Studies and Analyses:

nachricht WAKE-UP provides new treatment option for stroke patients | International study led by UKE
17.05.2018 | Universitätsklinikum Hamburg-Eppendorf

nachricht First form of therapy for childhood dementia CLN2 developed
25.04.2018 | Universitätsklinikum Hamburg-Eppendorf

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Research reveals how order first appears in liquid crystals

23.05.2018 | Life Sciences

Space-like gravity weakens biochemical signals in muscle formation

23.05.2018 | Life Sciences

NIST puts the optical microscope under the microscope to achieve atomic accuracy

23.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>