Navigation Links
Why humans choose running over walking
Date:1/5/2012

sing its efficiency.

"The ultrasound imaging technique allows you to separate out the movement of the muscles in the lower leg and has not been used before in this context," Farris says.

The finding sheds light on why speed walking is generally confined to the Olympics: muscles must work too inefficiently to speed walk, so the body turns to running in order to increase efficiency and comfort, and to conserve energy.

"The muscle can't catch up to the speed of the gait as you walk faster and faster," Sawicki says. "But when you shift the gait and transition from a walk to a run, that same muscle becomes almost static and doesn't seem to change its behavior very much as you run faster and faster, although we didn't test the muscle at sprinting rates."

The research could help inform the best ways of building assistive or prosthetic devices for humans, or help strength and conditioning professionals assist people who have had spinal-cord injury or a stroke, Sawicki and Farris say.


'/>"/>
Contact: Mick Kulikowski
mick_kulikowski@ncsu.edu
919-515-8387
North Carolina State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Mineral oil contamination in humans: A health problem?
2. Escherichia coli bacteria transferring between humans and mountain gorillas
3. Pigs and dogs can bridge gap between mice and humans in developing new therapies
4. Snails and humans use same genes to tell right from left
5. As super-predators, humans reshape their prey at super-natural speeds
6. Researchers genetically link Lou Gehrigs disease in humans to dog disease
7. Ecologists report quantifiable measures of natures services to humans
8. Early humans had jaws of steel
9. Ancestral genome of present-day African great apes & humans had burst of DNA sequence duplication
10. Genetic differences between yeasts greater than those between humans and chimpanzees
11. Social support during breast-feeding helps humans have more children
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... rugs and plastic bags could one day be made ... petroleum, scientists are now reporting. The novel process they ... deal with its agricultural and plastic waste problems, appear ... Athanassiou, Ilker S. Bayer and colleagues at the Italian ... constantly growing. In 2012, its production reached 288 million ...
(Date:8/20/2014)... for electronically manipulating the flight muscles of moths and ... those muscles. The work opens the door to the ... emergency response. , "In the big picture, we want ... moths for use in applications such as search and ... of electrical and computer engineering at NC State and ...
(Date:8/19/2014)... decrease China,s increasing caesarean section rate, suggests a new ... International Journal of Obstetrics and Gynaecology (BJOG) . , ... in the world. Of 16 million babies born in ... rate is not known, the current Chinese language literature ... ranging from 36% to 58%. However, before the 1980s, ...
Breaking Biology News(10 mins):Research paves way for development of cyborg moth 'biobots' 2Is China's 50 percent cesarean section delivery rate too high? 2Is China's 50 percent cesarean section delivery rate too high? 3
... A multi-disciplinary 5-year project at the University of ... has received $10 million in funding from the National ... and eventually manipulate the communication between cells that causes ... the School of Medicine, the College of Science and ...
... article in the Journal of Integrated Pest Management ... and present management practices, and current research being conducted. ... an introduced insect pest of small grains first recorded in ... from Europe or Asia into Michigan, cereal leaf beetle has ...
... REDWOOD CITY, Calif., Oct. 17, 2011 ... will address critical issues surrounding the use of biometrics for ... market update on October 19, 2011 at 11:05 a.m. GMT, ... On October 20, 2011 at 11:15 a.m. GMT, Bjorn will ...
Cached Biology News:$10 million grant supports biological sciences team at University of Nevada, Reno 2$10 million grant supports biological sciences team at University of Nevada, Reno 3DigitalPersona Co-Founder and CTO to Tackle Critical Issue of Civil ID Security at Biometrics 2011 2
(Date:8/21/2014)... Aug. 21, 2014  Decision Resources Group finds ... and Mexico ... several newly approved agents, the anticipated label extension ... the launch of emerging biologics will substantially increase ... the emerging IL-5 inhibitors will introduce a new dynamic ...
(Date:8/21/2014)... 2014 Pursuit Solutions ( http://www.pursuit-solutions.com ... and services for Life Sciences sales and marketing ... of New Commercial Sales Models” by Peter Robinson, ... The article examines some innovative models used to ... tested in the pharmaceutical market. Robinson grades the ...
(Date:8/20/2014)... 20, 2014 Clintrax Global, Inc., a ... Raleigh, NC , recently announced ... Vice President of Administration. As ... corporate processes, including their alignment with company objectives ... worked as an HR executive, specializing in needs ...
(Date:8/20/2014)... Livermore, California (PRWEB) August 20, 2014 ... to develop and apply the most complete climate ... challenging and demanding climate change issues. , Eight ... combining forces with the National Center for Atmospheric ... in the new effort. Other participating national laboratories ...
Breaking Biology Technology:Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 2Asthma Agents Currently Face a Suboptimal Coverage Environment in Brazil and Mexico, and as the Treatment Armamentarium Expands, Competitiveness Will Further Intensify 3Pursuit's Peter Robinson Publishes "Grading Pharma's Use of New Commercial Sales Models" 2Clintrax Global, Inc. Announces Addition to Executive Team 2New Project Is the ACME of Addressing Climate Change 2New Project Is the ACME of Addressing Climate Change 3
... Nanotechnologies (PEN) has developed findNano, an application for ... discover and determine whether consumer products are nanotechnology-enabled. ... engineering them at an incredibly small scale, has ... delivery systems. findNano allows users ...
... , CORAL GABLES, Fla., Nov. 13 Catalyst Pharmaceutical ... Nasdaq Staff Deficiency Letter dated November 13, 2009 indicating that ... Price requirement set forth in Nasdaq Listing Rule 5550(a)(2) for ... Nasdaq Listing Rules (the "Rules") require listed securities to maintain ...
... TAI,AN CITY, China, Nov. 13 /PRNewswire-Asia-FirstCall/ -- China ... the "Company"),one of the leading plasma-based pharmaceutical companies in ... call at 8:00 a.m. ET on,Monday, November 16, 2009, ... September 30, 2009. , Hosting ...
Cached Biology Technology:findNano app puts nanotech in your pocket 2Catalyst Receives Guidance from Nasdaq Regarding Minimum Bid Price Requirement 2China Biologic Schedules Conference Call to Discuss Third Quarter 2009 Financial Results 2
Human peripheral blood eosinophils, For immunohistochemistry (IHC) Cell Chip with Human Peripheral Blood Granulocytes...
Monocyte-derived dendritic cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Dendritic Cells...
Umbilical cord blood CD14+ Monocytes, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Monocytes, B Cells and NK Cells...
Umbilical cord blood CD19+ B cells, For immunohistochemistry (IHC) Cell Chip with Human Umbilical Cord Blood Monocytes, B Cells and NK Cells...
Biology Products: