Andrew Carle of George Mason University holds a GPS-enabled shoe. Carle came up with the idea of using GPS-equipped shoes as a way to track people with Alzheimer’s disease and other dementia patients.

Ricky Carioti | Washington Post

Andrew Carle, an assistant professor at George Mason University and a consultant on senior housing issues, is always looking for new technology to improve the lives of the elderly. He’s even coined a term for his life’s work: “nana technology.”

“I’ve always tried to close the great divide between geeks and grans,” said Carle, who’s also the founding director of the school’s program in senior housing administration.

So when he came across a shoe in 2007 with a Global Positioning System device embedded in the sole — an innovation aimed at parents concerned about their kids disappearing — he had an idea. Why not use the technology to develop a shoe for senior citizens? It could be a lifesaver for people with Alzheimer’s disease and other dementia patients while easing caregivers’ fears that they’ll wander away.

Carle met with Patrick Bertagna, chief executive of GTX Corp., the Los Angeles-based maker of the shoe. “It just really touched us,” Bertagna said of his meeting with Carle. “I brought in a whole management team to shift our focus.”

By late 2011, a new GPS-equipped shoe was ready for people with a variety of cognitive disorders, including traumatic brain injury and autism. Word spread quickly, and in 2012 a Swedish science museum named the shoe one of the “Top 100 Innovations of Mankind,” alongside the telephone and the Internet.

Step further

Now, Carle and GTX are taking their nana technology a step further. They’ve developed insoles with an embedded GPS device so that the technology can be easily moved between pairs of shoes. The “Smart Soles” are being tested by groups that work with dementia patients, and Carle said the shoes are scheduled to be released this summer.

The GPS shoe and insole have all sorts of potential ramifications, and the word is spreading. During Super Bowl week, Carle met with the NFL Retired Players Association, many of whose members are believed at risk of chronic traumatic encephalopathy, a degenerative brain disease.

Carle also is reaching out to veterans groups, to those who suffered traumatic brain injuries at war, to autism groups, to medical groups monitoring transplant organs, and to law enforcement.

Local police and sheriff’s departments frequently are tasked with searching for missing seniors, deploying numerous resources to find someone before they die of exposure or dehydration.

“You’ve got 5 million people with Alzheimer’s in this country,” Carle said, “and that’s going to quadruple. You’re going to have municipalities who do nothing but search and rescue for local seniors all day.”


The International Association of Chiefs of Police launched an Alzheimer’s initiative for police departments several years ago because dementia patients are a serious concern for law enforcement. Amanda Burstein, director of the IACP initiative, said GPS-equipped devices such as the GTX shoe are “part of our options for law enforcement in our classroom training.”

When such devices work quickly, “there’s obviously a huge resource savings,” Burstein said. “But it’s limited to those who can afford it, take care of it and are monitoring it.”

Fairfax County (Virginia) Sheriff Stacey Kincaid expressed similar reservations. She cited the cost — $299 per pair, plus $20 to $40 for a cell service plan — and the need to charge the GPS device daily. In Project Lifesaver, the program her office uses now with minimal public funding, deputies regularly visit caregivers and replace the batteries in the radio tracking bracelet themselves. “It’s not so easy as putting on a shoe and calling it a day,” Kincaid said.

Carle said the GPS shoe or insole is a substantial upgrade over the Project Lifesaver program because it doesn’t require a bracelet, which dementia patients often dislike, and it doesn’t require law enforcement involvement. It also uses GPS technology instead of radio frequency-based technology that requires a searcher to come within 400 yards of the subject.

The Alzheimer’s Association in Chicago offers its Comfort Zone GPS system, a cellphone sized-device designed to be carried in a pocket. But Beth Kallmyer of the Alzheimer’s Association said that cellular and GPS devices may not work in some places and that “there is no one technology that’s going to work for everybody.”

Shift focus

Carle conceded that he’s not a tech guy. His background is in hospital administration, more specifically in senior living and assisted care.

“I’ve been trying to push these tech industries to pay attention to older people,” Carle said. “They weren’t doing it.”

Then he found Bertagna, whose company focuses on wearable technology. Bertagna said he devised the original GPS shoe after the 2002 abduction of Elizabeth Smart in Utah, where the kidnapper returned to get Smart’s shoes. He said GTX subsequently “shifted our entire focus to people with cognitive memory disorders, traumatic brain injuries, athletes, children with autism.”

The shoes and the insoles use cellphone technology. Family members with a smart phone can determine the shoes’ location by calling them. The “shoe” texts back with a Google map pinpointing them. In addition, family members can set up a “geofence” perimeter of any distance, and the application sends an alert any time the shoes go beyond the perimeter.

“By using shoes,” Carle said, “we’ve maximized the chance the technology is there when we need it. They don’t even know it’s in there.”

(1) comment


THIS IS GOOD!!! I finally read something worth researching and implementing. Instead of giving money to third world countries who burn our flags, cuss us, and kill our people the government should be financing this project, our seniors deserve this technology.

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