Acute Cycling on Executive Control

Study Overview
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Brief Summary
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This study will examine whether 10-minute bouts of cycling at various intensities will impact executive functioning (i.e., cognitive ability) as assessed by the antisaccade (AS) task through a total of five visits. An antisaccade is a rapid eye movement away from a visual target. The ability to suppress making an eye movement towards a visual target gauges inhibitory control (i.e., a domain of executive functioning). In the initial visit, participants' exercise capacity will be assessed through a maximal effort cycling test. Intensities for the cycling bouts (i.e., high, moderate, low) in subsequent sessions will be based upon this maximal effort cycling test. In visits 2 through 5, participants will complete an AS task, followed by a 10-minute bout of cycling, and then complete the AS task again. The order of cycling intensities will be randomized between participants. Differences in the AS task (i.e., reaction time and accuracy) will be compared between and within cycling conditions.

Official Title
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The Effects of Acute Cycling on Executive Control

Conditions
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Physical Activity

Intervention / Treatment
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* Behavioral: Sitting
* Behavioral: Light-Intensity Cycling
* Behavioral: Moderate-Intensity Cycling
* Behavioral: High-Intensity Cycling


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Able to read, write and understand English Full time student enrolled at Western University Able to perform a ten-minute exercise task at a light intensity without health implications Have email or phone number for contacting purposes Exclusion Criteria: Do not have a medical condition that prevents you from exercise (e.g. heart attack in the past year, heart disease, irregular heartbeat, etc.) Do not have history of eye injury or neurological impairment Do not have an orthopaedic limitation Are not pregnant

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 64 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: Basic Science
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Sitting<br>The participant will be asked to sit for 10 min (not increasing their heart rate) then do the anti-saccade task | Behavioral: Sitting<br>* 10 min bouts<br>|
| Experimental: Low-Intensity Cycling<br>Participant will be asked to cycle for 10 min (<40% VO2R) and then perform the anti-saccade task | Behavioral: Light-Intensity Cycling<br>* 10min bout<br>|
| Experimental: Moderate-Intensity Cycling<br>The participant will be asked to do 10 min of cycling (40-59% VO2R) followed but the anti-saccade task | Behavioral: Moderate-Intensity Cycling<br>* 10 min bout<br>|
| Experimental: High-Intensity Cycling<br>The participant will be asked to do 10 min of cycling (60%-84% VO2R) followed but the anti-saccade task | Behavioral: High-Intensity Cycling<br>* 10 min bout<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Reaction Time | Time in milliseconds to target | 30 minutes | 
| Accuracy | Directional errors | 30 minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Physical Activity, Executive function, Anti-saccade