Dr. Manuel Montero-Odasso’s research demonstrates that gait testing, such as walking while performing a cognitively demanding task like counting backwards (dual-task gait),can be an effective predictor of progression to dementia. In a new study, a team at Lawson Health Research Institute and Western University’s Schulich School of Medicine & Dentistry has discovered changes to the brain that correspond to these findings. 

These changes identify a brain mechanism that corresponds with slow dual-task gait among older adults with mild cognitive impairment (MCI), an intermediate stage between the expected cognitive decline of normal aging and the more serious decline of dementia. Through their work Dr. Montero-Odasso and his team have found that a high dual-task gait cost, or a significant slowdown in walking speed when dual-tasking, is associated with a two- to three-fold increased risk of progression to dementia. However, the brain mechanism underlying this association was unclear.

To address this research question, Dr. Montero-Odasso partnered with Robert Bartha, PhD, an imaging scientist at Schulich Medicine & Dentistry and Robarts Research Institute at Western University. The team used magnetic resonance imaging (MRI) to examine the medial temporal areas of the brain, particularly the hippocampus, the parahippocampal gyrus, and the entorhinal cortex, which are regions particularly vulnerable to degeneration in Alzheimer’s disease. Participants were 40 older adults with MCI taking part in Dr. Montero-Odasso’s “Gait and Brain Study” at St. Joseph’s Health Care London’s Parkwood Institute. 

The researchers found that participants with higher dual-task gait costs had a smaller grey matter volume in the left entorhinal cortex. Although grey matter volume loss is a common finding in people with Alzheimer’s disease, it is still unclear which areas of the brain are first affected by neurodegeneration. This finding points to the entorhinal cortex as a susceptible brain region in early stages of cognitive decline. This is in line with previous studies reporting that progression to Alzheimer’s disease is associated with volume loss in the entorhinal cortex.

The study therefore suggests that cognitive and motor dysfunction in older adults with MCI share common changes to the brain. This further supports that dual-task gait changes may be a measurable motor marker for neurological degeneration happening in Alzheimer’s disease.

“These novel results show that early brain changes common to pre-dementia states can be manifested by the way patients walk,” says Dr. Montero-Odasso, scientist at Lawson, geriatrician at St. Joseph’s Health Care London, and professor at Schulich Medicine & Dentistry. “This evidence supports walking while performing a cognitively demanding task as an important way to help predict dementia.”

The study, “Entorhinal Cortex Volume Is Associated With Dual-Task Gait Cost Among Older Adults With MCI: Results From the Gait and Brain Study,” is published in The Journals of Gerontology: Series A.

LONDON, ON- Strokes affect approximately 400,000 Canadians each year and can be debilitating. They can negatively affect a person’s cognition and mobility, and severely impact mental health and wellbeing.

 

A team at Lawson Health Research Institute are looking to improve mental health treatments and resources for patients who have experienced a stroke. The team will recruit 100 stroke patients to assess whether the completion of a guided therapy program can improve mental health and quality of life.

“More than sixty per cent of patients experience depression after stroke,” says Dr. Robert Teasell, Lawson Scientist and Physiatrist at St. Joseph’s Health Care London’s Parkwood Institute. “Having a stroke itself makes people more vulnerable and makes people feel their lives have changed negatively.”

During stroke rehabilitation, patients are typically offered mental health treatments, but the research team say it is post rehabilitation that stroke patients tend to experience worsening depression.

“Publicly funded allied health care services are available at inpatient and outpatient care; however, psychology is often limited across the rehabilitation continuum from acute to community care,” says Dr. Swati Mehta, Lawson Scientist. “We are looking at how we can provide a program that is cost effective to help those who have these barriers to access mental health services.”

“Patients have described to me that they feel like they have been dropped off a cliff because of the lack of resources once their programs have ended,” adds Dr. Teasell.

The study will examine the use of cognitive behavioral therapy (CBT), which is an evidence based psychological intervention that aims to provide people with increased coping ability and self-efficacy. Participants will complete a 10-week guided program with specific targeted lessons, tailored to the needs of those post stroke, delivered virtually through a trained clinician. They will then complete a questionnaire to see if there have been any improvements to self-efficacy and emotional wellbeing.

“We have found this form of therapy (CBT) has been very effective and feasible for spinal cord injury patients with mild traumatic brain injury and we want to see how a modified version could potentially help those with stroke and depression,” says Randy Upper, Clinical Research Associate at Lawson.

If CBT is proven effective through this study, Dr. Mehta hopes it will encourage similar programming that would be available to stroke patients after rehab.

“We are hoping we can connect with community organizations and work with them to implement this program in a service delivery model that would be easily accessible for stroke patients living in the community.”

Recruitment for this study is currently underway, those interested in taking part can email Dr. Swati Mehta at: @email

Over 130 hospital-based clinical, administrative and research staff members, persons with lived experience of mental illness, family caregivers, peer and community supporters, and staff from local community mental health agencies attended the 18th Annual Mental Health Research & Innovation Half Day on November 1, 2017. The event provided an opportunity to learn more about mental health research at Parkwood Institute and the Southwest Centre for Forensic Mental Health Care (Southwest Centre), part of the St. Joseph’s Health Care London (St. Joseph’s) family.

“This year’s Mental Health Research and Innovation Half Day was one of the best attended in our history of hosting the event. We had a very diverse and engaged audience with great energy and a lot of enthusiasm,” says Dr. Arlene MacDougall, Director of Research and Innovation for mental health care at St. Joseph’s and Lawson Health Research Institute (Lawson). 

Exciting recent projects were showcased though talks highlighting excellence in recovery and rehabilitation research, the theme of this year’s event; poster presentations; the 13th Annual Tony Cerenzia Research Lecture delivered by Dr. Sean Kidd; and interactive workshop sessions.

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“We chose ‘recovery and rehabilitation’ as the theme for the event because it is so important in our clinical care and research programs to have this focus. We need to prioritize the development, implementation and evaluation of practices and interventions that foster recovery of the whole person experiencing mental illness, which includes their psychological, social and other needs that go beyond traditional notions of healthcare,” Dr. MacDougall adds.

13th Annual Tony Cerenzia Research Lecture

Guest speaker Dr. Kidd’s talk – “From clinical trials to the clinic: A story about making Cognitive Adaptation Training for schizophrenia more accessible” – focused on how to implement interventions proven in clinical trials. Dr. Kidd is a clinical psychologist, senior scientist and psychology division chief at the Centre for Addiction and Mental Health (CAMH) in Toronto. He is also an associate professor in the Department of Psychiatry at the University of Toronto. 

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Workshop Sessions

Following Dr. Kidd’s lecture, attendees had the opportunity to participate in one of six workshops on a variety of topics related to recovery and rehabilitation focused mental health research:

“Implementing Interventions: A facilitated conversation attending to evidence, strategy, and recovery oriented care”

Led by Dr. Sean Kidd

Participants shared successful strategies for implementing novel approaches to care and discussed the challenges involved. They also looked at ways to leverage technology and education materials. 

“Spirituality in Mental Health Care: Practically Supporting Recovery and Wellness”

Led by Stephen Yeo, Lawson allied scientist and chaplain, Southwest Centre; and Dr. Clark Heard and Jared Scott, Lawson associate scientists and occupational therapists, Southwest Centre

This workshop focused on the practical application of spirituality within the clinical setting, including the use of labyrinths, which contribute to recovery by promoting spiritual self-care, insight development and personal meaning-making reflection.  Attendees had the opportunity to participate in a labyrinth walk and a related spiritual reflection. Read more about the labyrinths at Parkwood Institute and the Southwest Centre or watch the following video featuring highlights from the workshop:

“Indigenous Men’s Health and Wellbeing: Connection with Culture as a Rehabilitation and Recovery Tool”

Led by Bill Hill, social worker, Parkwood Institute and Dr. Vicki Smye, associate professor, director of nursing at Western University

Through the sharing of practitioner experience and Indigenous men’s voices, the workshop focused on understanding the powerful links between connection to culture and mental health and well-being (pictured below). 

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“Engaging Service Users and their Families in Research”

Led by Dr. Cheryl Forchuk, The Beryl and Richard Ivey Research Chair in Aging, Mental Health, Rehabilitation and Recovery, Lawson; and Deborrah Sherman, executive director, Ontario Peer Development Initiative

Participants in this workshop discussed the benefits of patient and family involvement in mental health research and identified strategies to support patient and family engagement (pictured below). 

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“Innovation in Mental Health Care: Moving Ideas to Impact”

Led by Kaitlin Saxton, research and innovation facilitator, Parkwood Institute; and Lisa Bitcola, centre manager of projects and operations, Ivey International Centre for Health Innovation

This workshop focused on how innovation relates to research and quality improvement initiatives within St. Joseph’s Mental Health Care facilities. Participants discussed innovative approaches that could be implemented within their own clinical practice, research and quality improvement initiatives (pictured below).

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“My Professional Practice: Where's the Research?”

Led by Amanda Thibeault, director, professional practice, St. Joseph’s

In this session, participants discussed how they can incorporate research into their clinical practice (pictured below).

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September is World Alzheimer’s Month and Saturday, September 21 was World Alzheimer’s Day. 

In recognition, the Journal of Alzheimer’s Disease has published an open access, special issue that will be available to everyone for the first two weeks of publication. 

Dr. Manuel Montero-Odasso, Scientist at Lawson Health Research Institute, has edited and led the special issue focusing on gait disorders and dementia. 

He is world renowned for his findings on the relationship between cognition and mobility in the elderly, and gait as a predictor of frailty and dementia. He leads the Mobility, Exercise and Cognition (MEC) Team in London, comprised of top researchers in the areas of mobility, exercise and brain health.

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Dr. Montero-Odasso is also a professor at Western University’s Schulich Medicine & Dentistry, geriatrician at St. Joseph’s Health Care London and London Health Sciences Centre, and Director of the Gait and Brain Lab, a part of Lawson’s Parkwood Institute Research group. 

“This Journal of Alzheimer’s Disease supplemental issue showcases studies presenting the epidemiology of gait disturbances and cognitive impairment, dissecting specific associations between cognitive domains and quantitative gait parameters, and addressing with advanced neuroimaging techniques the potential mechanisms underlying the gait-cognitive interaction seen before dementia,” explains Dr. Montero-Odasso. “Also, this issue highlights how to manage mobility impairment in the cognitive impaired by using assistive devices.”

Alzheimer’s disease is an irreversible, progressive brain disorder that slowly destroys memory and thinking skills. It is the most common cause of dementia among older adults. There are over half a million Canadians living with dementia - plus about 25,000 new cases diagnosed every year. By 2031, that number is expected to rise to 937,000, an increase of 66 per cent.

Read the Gait Disorders Special Issue with editorial from Drs. Montero-Odasso and George Perry entitled “Gait Disorders in Alzheimer’s Disease and Other Dementias: There is Something in the Way You Walk.”