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:6/30/2015)... -- To bolster its efforts and commitment to fighting cyber ... addition of two new team members. ... David Raviv will act as head of strategic alliances. ... providing the most secure solutions for the enterprise market. ... Technologies, a provider of security and management products, which was ...
(Date:6/29/2015)... June 24, 2015 Research ... the "Latin America Biomedical Sensors Market - Growth, ... The Latin America Biomedical Sensors market is ... of 2.04% over the period 2014-2020 The ... to the genetic formulation of each individual. These sensors ...
(Date:6/25/2015)... DALLAS , June 25, 2015 ... report "Fingerprint Sensors Market by Type (Swipe & Area), Technology, ... (Mobile, Government, Healthcare, Commercial Security & Others) & ... published by marketsandmarkets, the said market is expected ... CAGR of 17.1%. Browse 76 ...
Breaking Biology News(10 mins):HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 3Latin America Biomedical Sensors Market Report 2015-2020 2Fingerprint Sensors Market Worth $14,500.07 Million by 2020 2Fingerprint Sensors Market Worth $14,500.07 Million by 2020 3Fingerprint Sensors Market Worth $14,500.07 Million by 2020 4
... DNA is a rather simple sequence of A, G, C, ... into an amalgam called chromatin, a more complex picture emerges. ... either coil DNA into inaccessible silent regions or untwist it ... flags, such as methyl groups, affect whether histones silence or ...
... now struggling Olympia oyster native to the West Coast could ... according to new research from the University of California, Davis, ... the journal Proceedings of the Royal Society B . ... both oysters and snails were raised under ocean conditions forecast ...
... on the coral reefs of Palau in 2011 and 2012 ... resistance and resilience to ocean acidification, and aid in the ... collected water samples at nine points along a transect that ... the lagoon and then into the bays and inlets around ...
Cached Biology News:Next-gen reappraisal of interactions within a cancer-associated protein complex 2Next-gen reappraisal of interactions within a cancer-associated protein complex 3Acidification, predators pose double threat to oysters 2Coral reefs in Palau surprisingly resistant to naturally acidified waters 2Coral reefs in Palau surprisingly resistant to naturally acidified waters 3Coral reefs in Palau surprisingly resistant to naturally acidified waters 4
(Date:7/3/2015)... , July 3, 2015 ... 22. september 2015 på  http://www.openinnovationinscience.at om ... der finder sted i Wien ... undersøgelse af internationale forskere og videnskabsmænd foretaget ... to største udfordringer for sundhedsvidenskaben manglen på ...
(Date:7/2/2015)... Ill. , July 2, 2015 College ... Colton Eakins are gaining invaluable real-world experiences while ... Technology this summer. The students will be ... Jeff Wereszczynski,s research group at IIT. The internship ... Tom Carter , Physics; Dr. Kathy Finan ...
(Date:7/2/2015)... Amici Procurement Migrates to the ... Procurement has chosen Microsoft Cloud Solution Provider iomart ... 365.      (Logo: http://photos.prnewswire.com/prnh/20121126/579634) , ... in the bio-tech sector with a unique procurement service, ... to help them obtain best value. Its IT platform ...
(Date:7/2/2015)... ... July 02, 2015 , ... In’Tech Medical SAS ... in Orthopedics, announced today the acquisition of Turner Medical, Inc ., thus ... surgical instruments to the Spine Industry. The acquisition of Turner Medical ideally supplements ...
Breaking Biology Technology:Lancering af verdens første åbne innovationsprogram til uddannelse af forskere 2Lancering af verdens første åbne innovationsprogram til uddannelse af forskere 3COD Students Participate in Prestigious Summer Internships 2Biotech Procurement Company Moves to Office 365 with iomart 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 2In'Tech Medical Acquires Turner Medical to Become a World Leader in Orthopedic Contract-Manufacturing 3
... 1 million to 600 billion pages-that's one measure of ... years. , ,From the beginning, the Internet Scout Project ... finding, filtering and presenting online information. Internet Scout is ... also looking forward to a future of continuing exploration ...
... of 16 percent the past two years, Wisconsin's bioscience sector ... brats, and milk, says Gale Davy, author of a report, ... , ,"Can you think of any other industry that's ... of the Wisconsin Association for Biomedical Research & Education ...
... a UW spin-off company, has received a $168,000 Phase I ... development of cell-based gene therapy products for the treatment of ... ulcers, which are particularly problematic for the aged population. , ... of people annually suffer from chronic ulcers, and that number ...
Cached Biology Technology:Internet Scout celebrates 10 years on web, eyes new project launch 2Bioscience beats beer 2
... chromatographically purified from egg white. The extinction coefficient ... is in 10 mM phosphate-buffered saline, ... 0.05% sodium azide and 50% glycerol. Avidin (from ... is purified by molecular sieving and ...
NM522 contains an F episome, which is required for production of ssDNA and for blue/white color selection. To maintain the F, NM522 should be grown on minimal (M-9) medium....
... K-12 derivatives that have mutations in both ... (gor) genes, which greatly enhances disulfide bond ... that expression in Origami(DE3) yielded 10-fold more ... though overall expression levels were similar (1). ...
... The Zero Blunt TOPO ... Sequencing is designed for ... of blunt-end PCR products. ... 5-minute TOPO Cloning and ...
Biology Products: