About this trial
The goal of this clinical trial is to investigate if combined motor-cognitive training can improve motor and cognitive symptoms in older adults with motoric cognitive risk syndrome. The main questions it aims to answer are:
* Does motor-cognitive training using a virtual reality treadmill improve gait speed? * Does motor-cognitive training using a virtual reality treadmill improve cognitive functions?
Researchers will compare virtual reality treadmill training with treadmill training to see if virtual reality treadmill training works to improve motor and cognitive functions in older adults at risk of dementia
Participants will
* Complete 18 sessions (1 hour, 3x/week, 6 weeks) of either virtual reality treadmill training or treadmill training * Complete a pre- and post-training assessment * Wear an activity sensor for seven days prior to the pre-training assessment and for seven days after the post-training assessment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥ 65
English speaking
Normal cognition (CDR=0)
Meet MCR criteria
Disqualifiers
Major chronic unstable disease or neurological condition (e.g., seizures)
Diagnosed dementia
Active psychiatric conditions
Musculoskeletal conditions that affect walking for more than 2 minutes
Trial design
Parallel
Treatments tested in this trial
Virtual Reality Treadmill Training
BehavioralThe Virtual Reality Treadmill Training (VRTT) group will complete 18 training sessions over six weeks (three 1-hour sessions per week). Participants will perform prescribed tasks designed to challenge motor, cognitive, and motor-cognitive functions within a VR environment projected onto a screen in front of the treadmill (Fig 1). The VRTT system includes a conventional treadmill with a harness suspension system, camera-based motion capture (Intel RealSense, Santa Clara, CA), and a computer-generated simulation (GaitBetter, Tel Aviv, Israel). The camera tracks the participant's feet movements, which are displayed within the VR environment, allowing participants to see their feet navigating obstacles, pathways, and narrow corridors. Each session will include three walking bouts interspersed with rest breaks, targeting at least 40 minutes of active motor-cognitive training.
Treadmill Training
BehavioralParticipants in the Treadmill Training (TT) intervention will follow a traditional TT program without feedback from the VR system. 70 The focus will be on increasing gait speed and distance, with no motor-cognitive training such as obstacle crossing or cognitive tasks while walking.
Treatment groups
Trial outcomes
Primary outcomes
Dual-task gait speed
6 minute walk test on a 25-meter walkway while completing auditory oddball task
Cognition
Uniform Data Set (UDS) 4.0 global cognition composite score
Gait speed
Gait speed on 4-meter walk test (4MWT)
Cognitive complaints
Self-report of cognitive complaints based on memory item of the Geriatric Depression Scale (GDS): yes - no
Secondary outcomes
Dual task cost
Motor and cognitive dual task cost defined using ((dual task - single task) / single task) \* 100
Spatiotemporal gait characteristics
Inertial Motion Units will collect spatiotemporal gait characteristics during single-task and dual-task walking
Cognitive domain scores
Uniform Data Set 4.0 (UDS) cognitive domain scores
P3 event-related potential (ERP)
P3 event-related potential (ERP) extracted from electroencephalography during oddball test
Other outcomes
Real-world physical activity and gait data
Physical activity and gait data collected from activity sensors
Depression
Scores on the Geriatric Depression Scale (GDS): range 0 - 15; higher score is worse
Health-related Quality of life
Scores on Short Form 36 (SF-36): range 0 - 100; higher score is better
Frailty
Scores on the Evaluative Frailty Index for Physical Activity (EFIPA): range 0 - 1; higher score is worse
Sponsors and contacts
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University of Kansas Medical Center
Lead sponsor
National Institute on Aging (NIA)
Collaborator