Published on: May 23, 2017
by Medical XPress:
In a new study, researchers at Lawson Health Research Institute and Western University are demonstrating that gait, or motion testing, while simultaneously performing a cognitively demanding task can be an effective predictor of progression to dementia and eventually help with earlier diagnosis. To date, there is no definitive way for health care professionals to forecast the onset of dementia in a patient with memory complaints.
Dr. Manuel Montero-Odasso, a Lawson scientist, geriatrician at St. Joseph’s Health Care London, and associate professor in the Division of Geriatric Medicine at Western University’s Schulich School of Medicine & Dentistry, is leading the “Gait and Brain Study.” His team is assessing up to 150 seniors with mild cognitive impairment (MCI), a slight decline of memory and other mental functions which is considered a pre-dementia syndrome, in order to detect an early predictor of cognitive and mobility decline and progression to dementia.
“Finding methods to detect dementia early is vital to our ability to slow or halt the progression of the disease,” says Dr. Montero-Odasso. The study, funded by the Canadian Institutes of Health Research, followed participants for six years and included bi-annual visits. Researchers asked participants to walk while simultaneously performing a cognitively demanding task, such as counting backwards or naming animals. Those individuals with MCI that slow down more than 20 per cent while performing a cognitively demanding task are at a higher risk of progressing to dementia.
“While walking has long been considered an automatic motor task, emerging evidence suggests cognitive function plays a key role in the control of walking, avoidance of obstacles and maintenance of navigation,” says Dr. Montero-Odasso. “We believe that gait, as a complex brain-motor task, provides a golden window of opportunity to see brain function.”
The “gait cost,” or speed at which participants completed a single task (walking) versus a dual-task, was higher in those MCI individuals with worse episodic memory and who struggle with executive functions such as attention keeping and time management.
“Our results reveal a ‘motor signature’ of cognitive impairment that can be used to predict dementia,” adds Dr. Montero-Odasso. “It is conceivable that we will be able to diagnose Alzheimer’s disease and other dementias before people even have significant memory loss. Our hope is to combine these methods with promising new medications to slow or halt the progression of MCI to dementia.”
The study, “Association of Dual-Task Gait with Incident Dementia in Mild Cognitive Impairment”, was published in the journal, Jama Neurology.
On Mother’s Day, amazing support for women’s brain health and our initiative from Robin Wright, Diane Lane, Trudie Styler, Teddy Sears, Martha Stewart, Tonya Lewis Lee, Marcia Gay Harden, Donna Karan, and Cecile Richards.
Here’s some of the “Best Brain Boosts” we’ve discovered to help women boost their brain health, providing a buffer against cognitive decline.
Thanks to the ongoing support of our partner Brain Canada, and The Citrine Foundation of Canada, Women’s Brain Health Initiative’s newest edition of MIND OVER MATTER has just been published. Loaded with interesting science-based articles, MIND OVER...
The material presented through the Think Tank feature on this website is in no way intended to replace professional medical care or attention by a qualified practitioner. WBHI strongly advises all questioners and viewers using this feature with health problems to consult a qualified physician, especially before starting any treatment. The materials provided on this website cannot and should not be used as a basis for diagnosis or choice of treatment. The materials are not exhaustive and cannot always respect all the most recent research in all areas of medicine.