Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Falling in Old Age Linked to Altered Blood Flow in Brain

18.05.2010
A new study shows that altered blood flow in the brain due to high blood pressure and other conditions may lead to falls in elderly people. The research will be published in the May 18, 2010, issue of Neurology®, the medical journal of the American Academy of Neurology. Each year, unintentional falls in the United States account for more than 16,000 deaths and 1.8 million emergency room visits.

“At age 60, 85 percent of people have a normal walking ability. However, by age 85, only 18 percent of seniors can walk normally,” said study author Farzaneh A. Sorond, MD, PhD, with Brigham and Women’s Hospital, Hebrew SeniorLife’s Institute for Aging Research and Harvard Medical School in Boston and a member of the American Academy of Neurology.

For the study, researchers followed 419 people age 65 or older. Ultrasound tests were used to measure brain blood flow response to carbon dioxide levels, a standard test of blood vessel function in the brain. Walking speed was measured by a four-meter walking test. The seniors and their caregivers reported any falls that occurred over two years.

The study found that the 20 percent of people who had the smallest blood flow changes in the brain were at a 70 percent higher risk of falling compared to the 20 percent of people who had the largest blood flow changes in the brain. Those with the slowest rate had an average of nearly 1.5 falls per year, compared to less than one fall per year for those with the highest rate.

“Our findings suggest there could be a new strategy for preventing falls, such as daily exercise and treatments for high blood pressure, since blood pressure affects blood flow in the brain and may cause falls,” said Sorond.

The study was supported by a donation from Dr. Fatemeh Khosroshahi to the Brigham Women’s Hospital and by grants to Dr. Farzaneh Sorond and Dr. Lewis A. Lipsitz from the National Institute on Aging. The study is part of MOBILIZE Boston (Maintenance of Balance, Independent Living, Intellect and Zest in the Elderly).

The American Academy of Neurology has a guideline on how to identify people most at risk for falling. For more information on the guideline, visit http://www.aan.com.

The American Academy of Neurology, an association of more than 22,000 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as stroke, Alzheimer’s disease, epilepsy, Parkinson’s disease, and multiple sclerosis.

Rachel L. Seroka | American Academy of Neurology
Further information:
http://www.aan.com

More articles from Studies and Analyses:

nachricht Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University

nachricht New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Attoseconds break into atomic interior

A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.

In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...

Im Focus: Good vibrations feel the force

A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.

By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...

Im Focus: Developing reliable quantum computers

International research team makes important step on the path to solving certification problems

Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Basque researchers turn light upside down

23.02.2018 | Physics and Astronomy

Finnish research group discovers a new immune system regulator

23.02.2018 | Health and Medicine

Attoseconds break into atomic interior

23.02.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>