A physical test for measuring age shows wide differences between the rates of aging among different population groups, according to new research by demographers at the International Institute for Applied Systems Analysis.
A strong handshake can say a lot about a person—it can indicate power, confidence, health, or aggression. Now scientists say that the strength of a person’s grasp may also be one of the most useful ways to measure people’s true age.
In a new study published today in the journal PLOS ONE, IIASA researchers Serguei Scherbov and Warren Sanderson (also at Stony Brook University) show that hand grip corresponds to other markers of aging such as people’s future mortality, disability, cognitive decline, and ability to recover from hospital stays.
For their new research, Sanderson and Scherbov reviewed findings from over 50 published studies that focus on people of all ages around the world. Since the measure is already commonly used, data are readily available. “Hand-grip strength is easily measured and data on hand-grip strength now can be found in many of the most important surveys on aging worldwide,” says Sanderson.
The study also demonstrates how such a test could be used as a measure for aging to compare different population groups. The study used data from one such survey, the United States Health and Retirement Survey (HRS), to show how this could be done.
Scherbov says, “We found that based on this survey, a 65-year-old white women who had not completed secondary education has the same handgrip strength as a 69-year-old white women who had completed secondary education. This suggests that according to a handgrip strength characteristic their ages are equivalent and 65 year-old women ages 4 years faster due to lower education attainment.”
In a growing body of research funded in part by a new grant from the European Research Council (ERC), Scherbov and Sanderson have begun to define new measures of aging based on people’s characteristics, such as their longevity, health, disability status and other important demographic factors.
Previous research by Sanderson and Scherbov has shown that measuring age simply by the number of years people have lived does not measure variations in the aging process correctly. Using new characteristic-based approaches such as the one in this paper, using a physical test like hand-grip, the researchers can identify differences in the aging process between population groups that may not otherwise become apparent.
Scherbov says, “Our goal is to measure how fast different groups in a society age. If some group is getting older faster than another, we can ask why that might be and see whether there are any policies that could help the faster aging group.”
European Union’s Seventh Framework Programme (FP7/2007–2013)/ERC grant agreement to ERC2013-AdG 323947-Re-Ageing.
For more information please contact:
Deputy Program Director
T +43(0) 2236 807 584
T +43(0) 2236 807 252
T +1 631 828-4117
IIASA Press Office
Tel: +43 2236 807 316
Mob: +43 676 83 807 316
IIASA is an international scientific institute that conducts research into the critical issues of global environmental, economic, technological, and social change that we face in the twenty-first century. Our findings provide valuable options to policy makers to shape the future of our changing world. IIASA is independent and funded by scientific institutions in Africa, the Americas, Asia, Oceania, and Europe. www.iiasa.ac.at
Katherine Leitzell | idw - Informationsdienst Wissenschaft
New measure for the wellbeing of populations could replace Human Development Index
07.11.2018 | International Institute for Applied Systems Analysis (IIASA)
Because not only arguments count
30.10.2018 | Max-Planck-Institut für Mathematik in den Naturwissenschaften (MPIMIS)
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences