Putting Petabytes to Work: Home-Based Assessment Technology Can Help Elders Manage Their Health

By Kaye, Jeffrey | Aging Today, January/February 2011 | Go to article overview

Putting Petabytes to Work: Home-Based Assessment Technology Can Help Elders Manage Their Health


Kaye, Jeffrey, Aging Today


Within many industries that work with older adult populations there is often resistance to embracing technology in the health services arena. A possible antidote to mis resistance is to demystify what can be accomplished with the tools currently available.

We already know that we exist in a growing bath of ambient information - surrounded by multiple sources competing for our attention - and much of it is uncaptured, unfiltered or purposelessly directed. However, intelligent, home-based health-assessment systems provide new ways to customize and fine-tune this information to help us maintain our health and wellness.

ONE SIZE DOES NOT FIT ALL

Current health recommendations are generally based on information obtained during brief and episodic assessments of health-related activities or behaviors. Questions are often framed like this: "During the past month how often did you get up to use the bathroom?" or even less specifically, "Are you taking your medications regularly?" This approach does not take into account how difficult it may be for older people, particularly if challenged by mild cognitive impairment, to provide accurate information.

Current health assessment is a onesize-fits-all approach where everyone is asked the same questions, even though each individual may vary tremendously in what they do each day, or were doing a month ago. This day-to-day or even hour-to-hour variability may be important to understand, but very hard for a person to be aware of or to describe.

TECHNOLOGY CAN IMPROVE ASSESSMENTS

There is great room for improving the way we assess functional change and health indicators over time. This can be done through a now-growing ability to use simple technologies, such as motion and activity sensors, bed monitors or home computer-based assessments, to unobtrusively monitor key behaviors and activities that are important for maintaining health and well-being. Ideally, these sensors and their assessments act in the background and do not require individuals to wear a device or maintain the technology. The data is then truly representative of a person's natural activity.

The Oregon Center for Aging and Technology (ORCATECH), which is supported by a National Institute on Aging Roybal Center grant and a collaboration with Intel at Oregon Health & Science University, has developed and deployed such home-based systems for several years. These systems, which have been placed in hundreds of homes during studies of older persons living independently, demonstrate how the technology can help assess a variety of important health-related behaviors - cognitive function, physical activity, socialization or sleep. The approach is clearly feasible and well-accepted by this older population.

As Margaret Isaacs, an 81 -year-old research participant at the Center for Aging and Technology said, "Give me the sense of participating in myself and not being 'handled.' I manage my own healthcare. I manage myself. I've had the same doctor for 46 years because I have him trained. If I'm not going to take a medication, he listens. Doctors should realize that we are not guinea pigs to be practiced and tried out on - we are sane adults who can manage their own healthcare if you give us enough information."

Although understanding the type of continuous real-time data captured in the natural environment is a key focus of this work, the importance of the data is that it can be used to inform and track personalized health-behavior interventions and maintenance programs, much like the one Isaacs envisions.

THE POWER OF AMBIENT INFORMATION

The use of continuous real-time data as opposed to brief, static estimates of prior function creates an opportunity to inform individuals about their functioning, and in the process, it may radically alter the way people prepare to change behaviors.

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