Research shows promise for cognitive rehabilitation for multiple sclerosis

Improvements in memory performance, perceived memory ability in daily life, and functional performance, warrant more extensive clinical trials using TELE-self-GEN in MS therapy
Improvements in memory performance, perceived memory ability, and functional performance warrant more extensive clinical trials using TELE-self-GEN in MS therapy.

A preliminary study demonstrates the potential for a new treatment for memory problems in people with multiple sclerosis.

The pilot study involved ten participants with memory impairments related to multiple sclerosis (MS). It aimed to determine the feasibility and impact of six online sessions of TELE-Self-GEN, delivered via Zoom. Lead author Yael Goverover, PhD, OTR/L, a professor in New York University’s Department of Occupational Therapy and a visiting scientist at Kessler Foundation, explained that TELE-Self-GEN integrates memory strategies within a metacognitive framework to help individuals manage their cognitive challenges.

Participants reported high satisfaction levels, citing the convenience and accessibility of the virtual format. Most notably, they experienced improvements in memory tasks and their ability to perform daily activities.

“Our findings are promising, demonstrating that remote interventions can be both effective and satisfying for participants. Delivering therapy to individuals at home is not only convenient,” Dr. Goverover noted, “it expands access to cognitive rehabilitation designed to improve how individuals function in their daily lives.”

The intervention focuses on ‘self-generated learning,‘ a technique that encourages patients to create personal connections with everyday tasks, enhancing memory retention and recall. This method of association has proven effective in fostering greater independence and confidence among users, ultimately contributing to improved quality of life.

Exoskeleton therapy improves mobility, cognition and brain connectivity in people with Multiple Sclerosis

A pilot study led by Kessler Foundation researchers provided proof of concept for robotic-exoskeleton assisted exercise rehabilitation (REAER) in people with substantial MS-related neurological disability

A research participant in the MS pilot study does exercise training in the Ekso NR at Kessler Foundation. CREDIT Kessler Foundation/Jody Banks

 A team of multiple sclerosis (MS) experts at Kessler Foundation led the first pilot randomized controlled trial of robotic-exoskeleton assisted exercise rehabilitation (REAER) effects on mobility, cognition, and brain connectivity in people with substantial MS-related disability. Their results showed that REAER is likely an effective intervention, and is a promising therapy for improving the lives of those with MS.

The article, “A pilot randomized controlled trial of robotic exoskeleton-assisted exercise rehabilitation in multiple sclerosis,” (doi: 10.1016/j.msard.2021.102936) was published on April 4, 2021, by Multiple Sclerosis and Related Disorders. It is available open access at https://www.msard-journal.com/article/S2211-0348(21)00203-0/fulltext.

The authors, are Ghaith J. Androwis, PhD, Brian M. Sandroff, PhD, Peter Niewrzol, MA, Glenn R. Wylie, DPhil, Guang Yue, PhD, and John DeLuca, PhD, of Kessler Foundation, and Farris Fakhoury, DPT, of Kessler Institute for Rehabilitation.

It is common for people with MS to experience impairments in both mobility and cognition, and few therapies exist to manage the range of debilitating symptoms. This lack of treatment options is a major problem for people with MS, especially those with substantial MS-related neurological disability.

Previous research shows that exercise rehabilitation, such as walking, is an effective approach to symptom management, with some research suggesting that even a single exercise rehabilitation intervention can improve both mobility and cognition.

Yet there is a lack of efficacy of exercise rehabilitation on mobility and cognitive outcomes in people with MS who have substantial disability. Adaptive exercise rehabilitation approaches such as body-weight supported treadmill training and robot-assisted gait training have not demonstrated convincing results. Moreover, adaptive interventions lack key interactions between patients and therapists that may improve efficacy.

In this pilot study of 10 participants with significant MS-related neurological disability, researchers explored the use of robotic exoskeletons to manage symptoms. Rehabilitation exercise using robotic exoskeletons is a relatively new approach that enables participants to walk over-ground in a progressive regimen that involves close engagement with a therapist. The Foundation has dedicated a Ekso NR to MS studies to facilitate further research in this area.

As compared to conventional gait training, REAER allows participants to walk at volumes needed to realize functional adaptations–via vigorous neurophysiological demands–that lead to improved cognition and mobility. Effects on brain activity patterns were studied using the functional MRI capabilities of the Rocco Ortenzio Neuroimaging Center at Kessler Foundation.

Investigators compared participants’ improvement after four weeks of REAER vs four weeks of conventional gait training, looking at functional mobility, walking endurance, cognitive processing speed, and brain connectivity.

The results were positive: Relative to conventional gait training, four weeks of REAER was associated with large improvements in functional mobility (ηp2=.38), cognitive processing speed (ηp2=.53), and brain connectivity outcomes, most significantly between the thalamus and ventromedial prefrontal cortex (ηp2=.72). “Four weeks is relatively short for an exercise training study,” noted Dr. Sandroff, senior research scientist at Kessler Foundation and director of the Exercise Neurorehabilitation Research Laboratory. “Seeing improvements within this timeframe shows the potential for exercise to change how we treat MS. Exercise is really powerful behavior that involves many brain regions and networks that can improve over time and result in improved function.”

“This is particularly exciting because therapy using robotic exoskeletons shows such promise for improving the lives of people with co-occurring mobility and cognitive disability, a cohort that likely has the greatest potential to benefit from this new technology,” said Dr. Androwis, lead author and research scientist in the Center for Mobility and Rehabilitation Engineering Research at Kessler Foundation. “We’re eager to design a larger trial to further study these effects. Based on our initial results, we’re optimistic that this approach may be superior to the current standard of care.”