Navigation Links
UC Irvine study of leaping toads reveals muscle-protecting mechanism
Date:12/19/2012

Irvine, Calif., Dec. 19, 2012 Most people are impressed by how a toad jumps. UC Irvine biologist Emanuel Azizi is more impressed by how one lands.

An assistant professor of ecology & evolutionary biology who specializes in muscle physiology and biomechanics, Azizi found that nature's favorite leapers possess a neuromuscular response that's specific to the intensity of a landing a mechanism that protects muscles from injury upon impact.

The research is helping reveal how the nervous system modulates motor control patterns involved with jumping and landing. Azizi's findings on the underlying function of muscle control, he said, could one day improve rehabilitation programs for people with neuromuscular deficiencies.

In all vertebrates from toads to humans muscles contract to provide jumping power. Landing, however, requires that muscles stretch to dissipate energy and slow the body. But if muscles become overstretched during landing, injury can occur.

For a study appearing online today in Biology Letters, Azizi and UC Irvine graduate student Emily Abbott measured toads' muscular responses to leaps of different lengths. They discovered that during landing, toads' muscles adapt to the varying intensity of impact. As the creatures hop over longer distances, their landing muscles increasingly shorten in anticipation of larger impacts.

This pattern indicates that rapid and coordinated responses of the nervous system can act to protect muscles from injury, said Azizi, who added that future efforts will be aimed at understanding what sensory information is used to modulate these responses.

"Toads are ideal for studying jumping and landing because they're so good at it," he noted. "This work is providing the basic science on how muscles respond during high-impact behaviors like landing or falling."


'/>"/>
Contact: Tom Vasich
tmvasich@uci.edu
949-824-6455
University of California - Irvine
Source:Eurekalert

Page: 1

Related biology news :

1. State stem cell research funding agency awards $37.3 million to aid UC Irvine efforts
2. NTU study finds ways to prevent muscle loss, obesity and diabetes
3. Hass Avocado Board study published in Food & Function journal
4. Univ. of MD School of Medicine to study drug-resistant malaria in Myanmar
5. Study offers insights into role of muscle weakness in Down syndrome
6. University of Tennessee study predicts extreme climate in Eastern US
7. New menhaden study will help identify balance between fishing and preserving Bay forage fish
8. Study uncovers mechanism used by BRCA1 to suppress tumors
9. Penn Study shows resistance to cocaine addiction may be passed down from father to son
10. Study confirms prognostic value of new IASLC/ATS/ERS adenocarcinoma sub-classification
11. Study shows immunohistochemistry is reliable screening tool for ALK rearrangement
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... genes to the earliest common ancestor of butterflies ... an extensive "Tree of Lepidoptera" in the first ... , Among the study,s more surprising findings: Butterflies ... to large ones, which completely changes scientists, understanding ... that some insects once classified as moths are ...
(Date:7/31/2014)... IL Researchers who studied 100 twin pairs have identified ... normally on less than six hours of sleep per night. ... to the effects of sleep deprivation. , Results show that ... gene had an average nightly sleep duration of only ... the non-carrier twin, who slept for about six hours and ...
(Date:7/31/2014)... completed a 20-year study that looks at the ... times of the year. It finds that burning ... has no measurable negative consequences for the prairie ... The study was conducted by Gene Towne, research ... chief, and Joseph Craine, research assistant professor, both ...
Breaking Biology News(10 mins):UF study advances 'DNA revolution,' tells butterflies' evolutionary history 2UF study advances 'DNA revolution,' tells butterflies' evolutionary history 3Study of twins discovers gene mutation linked to short sleep duration 2Study finds benefits to burning Flint Hills prairie in fall and winter 2Study finds benefits to burning Flint Hills prairie in fall and winter 3
... the Baltic Sea compete for fish with the fishing industry. The ... salmon, sea trout and eel as those taken by fishermen. This ... Gothenburg, Sweden. Competing with the fishing industry , ... species and the same sizes of fish as those taken by ...
... CLEVELAND In a first-of-its-kind clinical trial, physician-scientists ... Center and Case Western Reserve University School of Medicine ... cancer screening. The five-year study is recruiting patients to ... colonoscopy for detecting large colon polyps. ...
... the Nile have found what they believe is the first ... group within the relatively short history of plant domestication. ... in the ancient world and could also help today,s domestic ... The researchers, led by Dr Robin Allaby from the ...
Cached Biology News:Gray seals consume as much fish as the fishing industry catches 2New clinical trial explores novel noninvasive colon cancer screening test 2New clinical trial explores novel noninvasive colon cancer screening test 3Ancient Egyptian cotton unveils secrets of domesticated crop evolution 2Ancient Egyptian cotton unveils secrets of domesticated crop evolution 3
(Date:8/1/2014)... 2014 One of the major revolutions taking ... which is the practice of using genomic and other ... individual biology. Personalized diagnostics—laboratory analyses that inform the practice ... lab,s future. This fall, AACC ,s first ever ... in this exciting field and the novel technologies driving ...
(Date:8/1/2014)... August 1, 2014 According to ... "Biophotonics Market - Global Industry Analysis, Size, Share, Growth, ... valued at USD 25.16 billion in 2013, which is ... at a CAGR of 10.4% from 2014 to 2020. ... http://www.transparencymarketresearch.com/biophotonics-market.html Increasing demand for accurate early ...
(Date:8/1/2014)... Canada (PRWEB) August 01, 2014 Once ... should it cost? This webinar will discuss how to ... , Join speakers Bob Allen, Senior Director of ... of Process Engineering at Fluor Industrial Services, and special ... Manufacturing Asset Planning at Amgen, as they provide an ...
(Date:8/1/2014)... -- Cambrex Corporation (NYSE: CBM ) reports results ... Highlights , Second quarter sales increased 59% ... last year. , Second quarter EBITDA increased 86% to ... last year (see table at the end of this release). ... impact of foreign currency, to between 13% and 16% over ...
Breaking Biology Technology:First-Ever AACC Virtual Conference to Focus on Personalized Diagnostics 2Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 2Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 3Global Biophotonics Market is Expected to Reach USD 50.20 Billion in 2020: Transparency Market Research 4Defining Low Cost in Your Solution for Future Facilities, New Webinar for Pharma, Biotech, Medical Device and Healthcare Companies, Hosted by Xtalks 2Cambrex Reports Second Quarter 2014 Financial Results 2Cambrex Reports Second Quarter 2014 Financial Results 3Cambrex Reports Second Quarter 2014 Financial Results 4Cambrex Reports Second Quarter 2014 Financial Results 5Cambrex Reports Second Quarter 2014 Financial Results 6Cambrex Reports Second Quarter 2014 Financial Results 7Cambrex Reports Second Quarter 2014 Financial Results 8Cambrex Reports Second Quarter 2014 Financial Results 9Cambrex Reports Second Quarter 2014 Financial Results 10Cambrex Reports Second Quarter 2014 Financial Results 11Cambrex Reports Second Quarter 2014 Financial Results 12Cambrex Reports Second Quarter 2014 Financial Results 13Cambrex Reports Second Quarter 2014 Financial Results 14Cambrex Reports Second Quarter 2014 Financial Results 15Cambrex Reports Second Quarter 2014 Financial Results 16
... and Physical Sciences Research Council (EPSRC) has today announced ... The five-year fellowships, each worth around 1 million, ... Bhaskaran, Dr Ajoy Velayudhan and Dr Peter Foote. ... the manufacturing challenges of tomorrow we need to transfer ...
... president and CEO Michael J. Collins delivered the commencement ... Biochemistry Department, which was held on May 18, 2012. Collins ... has been a member of the Advisory Board for the ... (Logo: http://photos.prnewswire.com/prnh/20090622/CL35336LOGO-b ) "I ...
...  With approximately one in four adults suffering from ... funding and high case loads, the value of ... vital to effective mental health services. ILCs are ... people with physical disabilities, but across the country, ...
Cached Biology Technology:EPSRC announces first recipients of Fellowships in Manufacturing 2CEM President and CEO Delivers Commencement Address at the 2012 University of Texas at Austin Chemistry and Biochemistry Department Graduation 2Peers Underscored As An Effective Counseling Tool 2
MAb to Yersinia pestis F1 Ag. Yersinia pestis F1 Antigen EB Strain...
Mouse monoclonal antibody to QDPR - quinoid dihydropteridine reductase...
... RED Chromogen System consists of FAST RED ... in the presence of alkaline phosphatase to ... The FAST RED System provides enough ... Contains: , , Vial A: 6 Tablets ...
The BioLogic Maximizer mixer is for use with the Maximizer valve system. The mixer improves gradient quality by mixing the output of the BioLogic DuoFlow workstation pumps....
Biology Products: