Dual-task Cycling System on Cognitive Function for the Elderly

Study Overview
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Brief Summary
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This project aims to develop a new dual-task stationary cycling system that can monitor and provide feedback on the aerobic exercise intensity, while administrating appropriate cognitive trainings targeting various cognitive sub domains through a screen in front of the user. The proposed system is designed to train the brain with cognitive tasks and the body with aerobic exercises at the same time. The difficulties of the cognitive tasks are controlled by the users' previous performances on these tasks so that they wouldn't be too easy nor too difficult. Similarly, the intensity of the aerobic exercise will be monitored through an optical encoder for the cycling cadence, two power meters for the force output on the two pedals, as well as a heart rate monitor for the users' physiological response. Constant feedback is being provided to the users so that they will exercise at the correct intensity to provide the greater cardiovascular and cognitive benefits.

Official Title
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Simultaneous Dual-Task Cycling Exercise Training on Cognitive Function for the Elderly

Conditions
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Cognitive Impairment

Intervention / Treatment
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* Device: Dual-task Group
* Device: Cycling Group
* Device: Cognitive Group


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Clinical diagnosis of MCI or cutoff at 2 < n < 16 th percentile MoCA score according to the level of education and age Sufficient cognitive ability to follow simple instructions Able to understand content and purpose of the study Conscious and in stable physical condition Exclusion Criteria: Any additional medical or psychological condition that would affect their ability to comply with the study protocol, e.g., a significant orthopaedic or chronic pain condition; or Severe hip, knee or ankle contracture that would preclude the passive range of motion of the leg Uncontrolled Cardiac issues

Ages Eligible for Study
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Minimum Age: 65 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Dual-task Group<br> | Device: Dual-task Group<br>* Participant will cycle and perform cognitive training simultaneously.<br>|
| Active Comparator: Cycling Group<br> | Device: Cycling Group<br>* Participant will cycle only.<br>|
| Active Comparator: Cognitive Group<br> | Device: Cognitive Group<br>* Participant will perform cognitive training only.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Montreal Cognitive Assessment, Hong Kong Version (HK-MoCA) |  | Within one month after the last training session | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Trail Making Test |  | Within one month after the last training session | 
| 6 Minutes Walk Test |  | Within one month after the last training session | 
| 5 times Sit to Stand |  | Within one month after the last training session | 
| 10 meters walk Test |  | Within one month after the last training session | 
| Graded Heart-rate Assessment |  | Within one month after the last training session |