Cognitive Decline
Conditions
Keywords
Older adults, Square stepping exercise, Mind-motor exercise, Long-term care, Global cognitive functioning
Brief summary
This is a 3 month cluster randomized controlled trial using a square-stepping exercise program (a.k.a. mind-motor exercise) in retirement and long-term care residences to improve global cognitive functioning in older adults with and without cognitive impairments. The investigators intend this project to be pragmatic and therefore will include residents with dementia and walking aids if the participants wish to participate. The primary outcome is global cognitive functioning, secondary outcomes include: single and dual task gait (only completed with those without dementia), oculomotor functioning, and functional fitness. The investigators hypothesize that there will be improvements in primary and secondary outcomes in the intervention group.
Detailed description
Square Stepping Exercise (SSE) can be best described as a visuospatial working memory task, with a stepping response and thus may be considered as a cognitive-physical exercise or alternatively as a type of mind-motor exercise. The SSE program was developed specifically to improve balance and lower extremity functioning and thereby prevent disability and institutionalization in older adults with recent evidence also suggesting that it may positively impact cognitive functioning. Through the investigators' collaboration with Dr. Mike Sharratt, President of the Schlegel-University of Waterloo Research Institute for Aging, Jaimie Killingbeck, Program for Active Living Coordinator for Schlegel Villages, and Susan Brown, Research Coordinator for the Schlegel-University of Waterloo Research Institute for Aging this study aims to: further assess the feasibility of square-stepping exercise amongst older adults with a variety of cognitive abilities, increase our collaborative efforts in the broader community and to engage older adults in physical activity to improve global cognitive functioning through a mind-motor exercise intervention. This study will be a cluster randomized controlled trial, stratified by long-term care or full continuum care of the 4 Schlegel Villages involved, not blinded. The investigators will stratify so that 1 long-term care and 1 full continuum will be randomized to begin the square-stepping program immediately, and 1 long-term care and 1 full continuum care will be randomized to usual-care wait list control group, that will begin the program once 12-week measurements are complete. The facilities were stratified to help balance baseline cognition between the intervention and control groups. The 4 facilities are: Long-term Care - Glendale Crossings and St. Claire; Full continuum Care - Tansley Woods and Winston Park. The sites were pre-randomized to allow facilities time to prepare their programming schedules to include square-stepping exercise to their residents. Intervention sites include Glendale Crossings and Tansley Woods and wait-list control sites include St. Claire and Winston Park. Outcomes assessments will be completed by graduate students and research assistants on this project. The assessments will be completed at each of the Villages. The Schlegel Villages staff Kinesiologists/ Exercise Therapists will implement the square-stepping exercise program during the 12 week period. Study staff will train the Schlegel Villages staff on how to implement the program.
Interventions
BEHAVIORALSquare Stepping Exercise
Square Stepping Exercise involves mimicking a stepping pattern demonstrated by an instructor. The stepping patterns become progressively difficult and involve forward, backward, lateral and diagonal movements on a 250cm long mat with 25cm square grids. In a group setting, an instructor will demonstrate walking patterns on a gridded mat to the participants and the participants must memorize and repeat the patterns on their own. This program has over 200 patterns that increase in difficulty from beginner to advanced. Eighty percent of the group must successfully complete the patterns to move onto the next pattern. Social engagement is encouraged.
Sponsors
Schlegel Villages: Retirement Homes and Long Term Care
University of Waterloo Research Institute for Aging
University of Western Ontario, Canada
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Healthy volunteers
Yes
Inclusion criteria
* All residents of the 4 Schlegel Villages: Glendale Crossing, St. Clair, Tansley Woods, Winston Park * Both males and females
Exclusion criteria
* Wheelchair bound residents * Residents who are blind or deaf without aids * Any residents who may not be able to participate due to health or behaviours in collaboration and discretion of the Schlegel Villages staff. * Residents who have a diagnosis of dementia, have a score of greater than 3 on the Cognitive Performance Scale (determined by each Schlegel Village) and advice from Schlegel Villages staff will be excluded from specific assessments (dual-task gait; oculomotor function; global cognitive functioning outcomes; Montreal Cognitive Assessment; 2 cognitive questions).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Composite score from Cambridge Brain Sciences Cognitive Battery | Change from 0 to 12 weeks | To assess global cognitive function. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Gait variability (stride time) under dual-task conditions | Change from 0 to 12 weeks | Gait variability is the stride-to-stride fluctuations of the way someone walks and will be calculated as the coefficient of variation of step length (SD/mean x100). Measured with GAITRite system. |
| Gait variability (stride time) under single-task conditions | Change from 0 to 12 weeks | Gait variability is the stride-to-stride fluctuations of the way someone walks and will be calculated as the coefficient of variation of step length (SD/mean x100). Measured with GAITRite system (portable gait analysis). |
| Gait velocity (speed) under dual-task conditions | Change from 0 to 12 weeks | Average walking speed (gait velocity) measured with the GAITRite system (portable gait analysis) |
| Step length (average) under dual-task conditions | Change from 0 to 12 weeks | Mean step length calculated from GAITRite system (portable gait analysis). |
| Step length (average) under single-task conditions | Change from 0 to 12 weeks | Mean step length calculated from GAITRite system (portable gait analysis). |
| Gait velocity (speed) under single-task conditions | Change from 0 to 12 weeks | Average walking speed (gait velocity) measured with the GAITRite system (portable gait analysis). |
| Reasoning composite score | Change from 0 to 12 weeks | Measured by Cambridge Brain Sciences - composite score from 3 reasoning tasks |
| Concentration composite score | Change from 0 to 12 weeks | Measured by Cambridge Brain Sciences - composite score from 3 concentration tasks |
| Planning (executive functioning) composite score | Change from 0 to 12 weeks | Measured by Cambridge Brain Sciences - composite score from 2 planning (executive function) tasks |
| Short Performance Physical Battery - Balance | Change from 0 to 12 weeks | To assess balance measured by Side by Side Stand, Semi-Tandem Stand, Tandem Stand to obtain a balance test score. |
| Neuropsychiatric Inventory Questionnaire | change from 0 to 12 weeks | To assess behavioural changes in residents with dementia |
| Memory composite score | Change from 0 to 12 weeks | Measured by Cambridge Brain Sciences - composite score from 4 memory tasks |
Countries
Canada
Outcome results
None listed