Navigation Links
Was ability to run early man's Achilles heel?
Date:9/11/2007

eletons; we use what we know about skeletons and the muscles to build a computer model of the fossil species we are interested in.

This model is a virtual robot where we can activate muscles and get it to move its legs in a physically realistic fashion; the tricky bit is getting it to actually walk or run without falling over.

However, if we use big enough computers and let the model fall over enough times it is possible for the simulation to learn which muscles to fire and when in order to get the model to walk properly. Even better we can ask the computer to find ways of minimising fuel cost and maximising top speed since that is what we think animals have to do.

Dr Sellers initially looked at walking and his models suggested that even as early as 3.5 million years ago our human ancestors were able to walk as efficiently as modern humans. His research also showed that they preferred to walk a little slower than we do but only because they were much smaller and had quite short legs.

The team also used the computer model to look at particular parts of the human locomotion system, including the Achilles tendon, which they showed acts like a big spring to store energy during running; when the tendon was removed from the model the top running speed was greatly reduced.

We have only just started to look at running and so there are still plenty of questions to answer, said Dr Sellers. But whilst these very early fossils could walk well, our initial findings suggest that efficient running came about quite a bit later in the fossil record.

How we evolved from our common ancestor with chimpanzees six million years ago is a fundamental question. Walking upright seems to be the very first thing that distinguishes our ancestors from other apes, so finding out about this should help us map the evolutionary pathway to modern humans.

The next really interesting question is to look in more detail at running. It has bee
'/>"/>

Contact: Aeron Haworth
aeron.haworth@manchester.ac.uk
44-161-275-8383
University of Manchester
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. “Nano-scissors?laser shows precise surgical capability
2. Enzyme shown to help protect genomic stability
3. Low level of extinction during ice age linked to adaptability
4. Two chemicals boost immune cells ability to fight HIV without gene therapy
5. Molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves
6. Study shows humans have ability to track odors, much like bloodhounds
7. Variation in HIVs ability to disable host defenses contributes to rapid evolution
8. Bigger brain size matters for intellectual ability
9. Locusts built-in surface analysis ability directs them to fly overland
10. First Whole Genome Map of Genetic Variability in Parkinson’s Disease
11. A bugs life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2014)... must be made to decrease China,s increasing caesarean section ... in BJOG: An International Journal of Obstetrics and ... highest caesarean delivery rates in the world. Of 16 ... caesarean. Although the exact rate is not known, the ... reports total caesarean rates ranging from 36% to 58%. ...
(Date:8/19/2014)... HOUSTON, Aug. 19, 2014 To improve students, ... poor grades, the University of Houston (UH) implemented ... for students at risk for failure. , ... Coordinating Board (THECB), the Department of Biology and ... first-year students taking "General Biology" for non-majors and ...
(Date:8/19/2014)... be used in supermarkets to encourage healthier spending habits? ... answer that very question by tracking the purchasing records ... System to rate the nutritional value of foods for ... Lab,s David Just, PhD, and Brian Wansink PhD, author ... of over 150 Hannaford Supermarkets in the Northeastern United ...
Breaking Biology News(10 mins):Is China's 50 percent cesarean section delivery rate too high? 2Is China's 50 percent cesarean section delivery rate too high? 3University of Houson program earns kudos for improving grades, retaining students 2University of Houson program earns kudos for improving grades, retaining students 3
... advance into the vanishingly small realm of molecules and ... venerable optical microscope, after all. In fact, research at ... that a hybrid version of the optical microscope might ... 10 nanometers—a tiny fraction of the wavelength of visible ...
... simple drug, given to children with severe malaria before they ... researchers in this week's BMJ. , Every year over a ... fatalities occur outside hospital, especially in rural areas. For those ... within 24 hours of admission. , Conventional treatment, given by ...
... potential new drug that inhibits destructive cell signals that ... scientists showed they could block the growth of cultured ... , Their finding, reported in the March 22, 2005, ... is the first step toward developing a new class ...
Cached Biology News:Devising Nano Vision for an Optical Microscope 2Newly Discovered Compound Blocks Known Cancer-Causing Protein 2Newly Discovered Compound Blocks Known Cancer-Causing Protein 3
(Date:8/20/2014)... (PRWEB) August 20, 2014 WriteResult®, a ... today that it has expanded its myPROpad™ ePRO tablet ... EQ-5D-5L, one of the most widely used and ... general health status. The EQ-5D is used during clinical ... a measure that can be used to demonstrate Health-Related ...
(Date:8/20/2014)... Bulgaria (PRWEB) August 20, 2014 ... was released today including improvements to the enterprise ... and connectors for Lucene, SOLR and Elasticsearch. This ... for this high performance triplestore – GraphDB™ was ... interested in deploying the only mature enterprise resilient ...
(Date:8/19/2014)... Piscataway, NJ (PRWEB) August 20, 2014 ... engineering and regenerative medicine is an inadequate vascular ... engineered constructs and decellularized tissues is critical for ... Researchers have attempted to mitigate deficiencies in vascularization ... including adding scaffold bioactivity, optimizing scaffold design and ...
(Date:8/19/2014)... August 19, 2014 Shimadzu Scientific ... systems, Prominence-i and Nexera-i, adding to the company’s ... excellent functionality, an intuitive operating environment, and full ... more efficient workflow for conventional to ultra-high-speed analysis. ... intuitive and intelligent design so users can begin ...
Breaking Biology Technology:EQ-5D™ Assessment Now Available for iPad 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 3
... ... software (OSS) in clinical trial electronic data capture and clinical data management. , ... Waltham, MA (PRWEB) January ... trial software, will gather on March 22nd, 2010 in Bethesda, Maryland (USA) for the ...
... ... over 24 years of experience to Professional Reprographics. , ... Irvine, California (PRWEB) January 7, 2010 -- Orange ... as President of Professional Reprographics. The naming of Cindy as President reflects Pro Repro’s ...
... , , , , SHENYANG, ... ), a leading biotechnology company focused on researching,developing, manufacturing ... it has submitted its application for a,registrational clinical trial ... Feraheme (ferumoxytol) Injection for intravenous,use. Feraheme is an intravenous ...
Cached Biology Technology:OpenClinica Global Conference to Bring Together Global Community for Open Source Clinical Trials Software 2OpenClinica Global Conference to Bring Together Global Community for Open Source Clinical Trials Software 3OpenClinica Global Conference to Bring Together Global Community for Open Source Clinical Trials Software 4Woman Owned Business President Makes Her Mark at Professional Reprographics 23SBio Inc. Applies for SFDA Registrational Trial for Feraheme(TM) 23SBio Inc. Applies for SFDA Registrational Trial for Feraheme(TM) 33SBio Inc. Applies for SFDA Registrational Trial for Feraheme(TM) 4
... The Gene Inspector can perform many sophisticated DNA ... is much more than just another sequence analysis ... entire suite of analyses to be performed each ... design custom style sheets which specify exactly how ...
... extraction through columns is a well-known separation ... Typical applications are in DNA/RNA extraction in ... compound purification in chemical or analytical laboratories. ... the Genesis series instruments for smaller scales. ...
... is a revolutionary new application for ... a novel interface, Expression makes complex ... simple. Expression uses the very latest ... in the way sequences are analysed. ...
Request Info...
Biology Products: