Navigation Links
Mental Exhaustion Impedes Physical Performance
Date:3/13/2009

Researchers say finding could serve as model for diagnosing chronic fatigue

FRIDAY, March 13 (HealthDay News) -- Mental exhaustion may lead people to believe they are physical fatigued sooner than normal, a new study suggests.

A United Kingdom study found that performing mentally fatiguing tasks before a physical exercise caused people to hit the wall faster than if they performed the same exercises while having a rested mind, even though the mental tiredness didn't affect the performance of the subjects' heart or muscles.

The authors said their findings, published in the March issue of the Journal of Applied Physiology, may offer insight into the mysteries of chronic fatigue syndrome.

Researchers with Bangor University in Wales tested 16 people by having them ride a stationary bicycle until they were exhausted. When the riding followed a 90-minute mental challenge that required using memory, quick reaction and the ability to inhibit a response, the participants tired out about 15 percent earlier on average than those who watched documentaries for 90 minutes prior to the biking.

While physiological measures, such as oxygen consumption, heart rate and blood pressure, didn't appear different during the exercise between the two trials, mentally fatigued subjects were found to start at a higher level of perceived effort and reached their capacity for this sooner.

Researcher Samuele M. Marcora said the team has two theories about their results: Mental fatigue lowers the brain's inhibition to quit, or mental tiredness affects levels of dopamine, a brain chemical tied to motivation and effort.

Those who undertook the mental challenge before exercise reported a lack of energy and a "brain fog" often associated with people with chronic fatigue. People with chronic fatigue find exercise to be more difficult, despite normal physiological responses, just as those mentally exhausted people
'/>"/>

Copyright©2009 ScoutNews,LLC.
All rights reserved  

Page: 1 2

Related medicine news :

1. Michigans Mental Health Care System Gets a D Grade in Latest Study
2. Video: New Report Card: Nations Mental Health Care System
3. Can mental training games help prevent Alzheimers?
4. Your Home May Be Harming You: Environmental Protection Agency States Indoor Environments Are 5-20 Times More Polluted Than Outdoors
5. The REACH Institute: Best Practice Guidelines Address Mental Health Needs of Youth in Care
6. Pennsylvania Department of Health Launches New Environmental Health Tracking Tool
7. Experimental Drug May Dampen Severe Asthma
8. IPC The Hospitalist Company Adopts E-Proxy to Reduce Environmental Impact
9. His and hers: Study examines the role of gender in the stigma of mental illness
10. New Mexico Senator Bingaman Recognized for Advocacy Work on Mental Health Issues
11. Environmental Defense Fund Welcomes EPA Clean Air Standards to Reduce Hazardous Diesel Pollution
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mental Exhaustion Impedes Physical Performance
(Date:4/18/2014)... School of Medicine researchers have been awarded two-year grants ... Nordisk announced this month. Of the 110 initial submissions ... Science Forum Program, only four projects were funded, three ... are Jonathan Powell, M.D., Ph.D.; G. William Wong, Ph.D.; ... a professor of oncology, will use his $500,000 proof ...
(Date:4/18/2014)... in French . ... and regenerative medicine. A team led by Ludwik Leibler ... Tech) and Didier Letourneur from the Laboratoire Recherche Vasculaire ... demonstrated that the principle of adhesion by aqueous solutions ... soft-tissue organs and tissues. This easy-to-use gluing method has ...
(Date:4/17/2014)... identified new pain relief targets that could be ... researchers at King,s College London made the discovery ... the periphery of the body. , Dr Marzia ... mechanisms underlying pain generation and our findings could ... effects." , One potential side effect of some ...
(Date:4/17/2014)... recent papers by a University of Colorado School ... develop treatments or vaccines for Dengue fever, West ... disease-causing flaviviruses. , Jeffrey S. Kieft, PhD, associate ... School of Medicine and an early career scientist ... recently published articles in the scholarly journals ...
(Date:4/17/2014)... (April 17, 2014) Doctors who treat patients ... lymphangioleiomyomatosis (LAM) can face an agonizing treatment decision. ... the disease and help relieve shortness of breath. ... and sirolimus can cause potentially fatal complications following ... Dr. Daniel Dilling, medical director of Loyola University ...
Breaking Medicine News(10 mins):Health News:Innovative strategy to facilitate organ repair 2Health News:Innovative strategy to facilitate organ repair 3Health News:New pain relief targets discovered 2Health News:CU researchers discover target for treating dengue fever 2Health News:Patients with rare lung disease face agonizing treatment dilemma 2Health News:Patients with rare lung disease face agonizing treatment dilemma 3
... has been effective for inoperable liver cancer. It is a year since ... a 25 ... rate in either reducing tumour size or the number of tumours. Till ... tumours, who cannot be treated by any other means. ,TheraSphere ...
... who suffer from dementia benefit from music therapy. The therapy ... The trials have found that the therapy is popular with ... at Imperial College London are planning to carry out a ... has long term benefits for dementia sufferers. If their results ...
... with low birth weight can significantly improve survival rates, ... diseases. The research involved 1,154 full-term but smaller than ... 5 1/2 pounds or less. Mothers fed them supplements ... the 20 who died had not been receiving zinc ...
... sole franchisee for US based Medicine Shoppe International, with operations ... from list of its target for operations in the country. ... to expand its franchisee operations from the present 19 outlets ... has decided to put on hold the commencing of operations ...
... a heavy breakfast and a steaming cup of tea may increase ... fried food each morning are at twice the risk of ... to reduce the incidence of cancer is to begin the day ... ,Cancer of the oesophagus - the food pipe connecting the stomach ...
... are more likely to get diagnosed with the progressive brain ... the case, although some have suggested that the disease may ... before it manifests itself elsewhere. ,Dr Robert Abbott, ... effectively identify people with early or suspected disease or people ...
Cached Medicine News:Health News:Cut down on fries 2
(Date:1/15/2014)... , Jan. 15, 2014 AARP Foundation today announced it ... adults suffering from the severe cold weather that has gripped ... to helping those in need; so to support these emergency ... up to $250,000, which could mean up to $500,000 in ...
(Date:1/15/2014)... Jan. 15, 2014 Massachusetts General Hospital (MGH), ... AMGN ) announced today that they have launched ... new therapeutic targets and develop novel therapies for ... affects millions worldwide. The MGH-Broad-Amgen collaboration brings together ...
(Date:1/15/2014)... , January 15, 2014 BreedIT Corp ... exclusive worldwide distributor of highly sophisticated agro-breeding solutions for ... 7, 2014, the Company,s board of directors appointed chemistry ... as its new member of the board. ...
Breaking Medicine Technology:AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 2AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 3Mass. General, Broad Institute and Amgen Will Work to Discover New Drugs for Inflammatory Bowel Disease 2Mass. General, Broad Institute and Amgen Will Work to Discover New Drugs for Inflammatory Bowel Disease 3Mass. General, Broad Institute and Amgen Will Work to Discover New Drugs for Inflammatory Bowel Disease 4BreedIT (OTC: BRDT) Appoints Chemistry and Pharmaceutical Industry Expert Dr. Ben-Zion Weiner to Its Board of Directors 2BreedIT (OTC: BRDT) Appoints Chemistry and Pharmaceutical Industry Expert Dr. Ben-Zion Weiner to Its Board of Directors 3
... multi-year, multi-hospital retrospective database analysis,demonstrates RDS treatment ... improved neonatal,survival --, NAPA, Calif. and PARMA, ... today at the Pediatric Academic Societies' Annual ... Syndrome (RDS) have a nearly 20% better ...
... Inspire,Pharmaceuticals, Inc. (NASDAQ: ISPH) today announced results ... epinastine nasal,spray and placebo in patients with ... improvement in total nasal symptom score,dose-related effects ... higher,dose (0.1%) achieving statistical superiority over placebo., ...
Cached Medicine Technology:Preterm Infants with Respiratory Distress Syndrome: Incidence Rates,of Death when Treated with Surfactant Replacement Therapies 2Preterm Infants with Respiratory Distress Syndrome: Incidence Rates,of Death when Treated with Surfactant Replacement Therapies 3Preterm Infants with Respiratory Distress Syndrome: Incidence Rates,of Death when Treated with Surfactant Replacement Therapies 4Preterm Infants with Respiratory Distress Syndrome: Incidence Rates,of Death when Treated with Surfactant Replacement Therapies 5Inspire Announces Positive Results of Phase 2 Trial of Epinastine,Nasal Spray for Seasonal Allergic Rhinitis 2Inspire Announces Positive Results of Phase 2 Trial of Epinastine,Nasal Spray for Seasonal Allergic Rhinitis 3Inspire Announces Positive Results of Phase 2 Trial of Epinastine,Nasal Spray for Seasonal Allergic Rhinitis 4