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| ID | Type | Description | Link |
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| 1R21HD110656-01A1 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
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| University of Oregon | OTHER |
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The goal of this randomized cross-over trial is to learn about the effect of a single bout of 20-min mindfulness-based high-intensity interval training (MF-HIIT), MF-only, and HIIT-only in relative to sitting rest on executive function (EF) in 10-12 years old children. The main question it aims to answer are:
Question 1: Whether a single bout of 20-min MF-HIIT has larger beneficial effect on EF performance than that following a 20-min session of MF-only and HIIT-only in relative to the sitting rest
Question 2: Whether a single bout of 20-min MF-HIIT has a larger beneficial effect on brain functioning, as measured by the N2 and P3 components of event-related potential (ER) during EF performance than that following a 20-min session of MF-only and HIIT-only in relative to the sitting rest
Participants will visit the laboratory on 5 separate days (> 2-day washout between days) in which they have not previously participated in structured physical activities.
Participants will complete the testing and/or receive treatments below:
Day 1:
Days 2-5
Researcher will compare the cognitive outcome measures following the MF-HIIT, MF-only, and HIIT-only conditions with the sitting condition to see if MF and HIIT has beneficial effects on children's EF.
Further, researcher will compare the cognitive outcome measures following the MF-HIIT compared with MF-only and HIIT-only conditions to see if combining MF with HIIT has greater beneficial effects on children's EF than MF and HIIT alone.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| A Single Bout Of Mindful High-Intensity Interval Training (Mindful HIIT) | Experimental |
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| A Single Bout Of High-Intensity Interval Training (HIIT) | Active Comparator |
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| A Single Bout Of Mindfulness | Active Comparator |
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| A Single Bout Of Sitting Rest | Other |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| MF-HIIT | Behavioral | A single bout of 20-min MF-HIIT protocol delivered through a motor-driven treadmill. The protocol will start with a 1.5-min warm-up, then a 16.5-min main exercise (6 x 90s exercise intervals separated by 5 x 90s mindful intervals), and finally a 2-min cool-down. |
| Measure | Description | Time Frame |
|---|---|---|
| Inhibition speed | Inhibition speed will be assessed by the response time (ms) during a child-friendly flanker task. | At the baseline before and about 10-min after the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| Inhibition accuracy | Inhibition accuracy will be assessed by the response accuracy (%) during a child-friendly flanker task. | At the baseline before and about 10-min after the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| Shifting speed | The shifting speed will be assessed by the response time (ms) during a child-friendly switching task. | At the baseline before and about 10-min after the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| Shifting accuracy | The shifting accuracy will be assessed by the response accuracy (%) during a child-friendly switching task. | At the baseline before and about 10-min after the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| N2-ERP | The N2 component of event-related brain potentials is a neuroelectric index of conflict processing. Increased amplitude of N2 reflects increased neural activation to detect and resolve conflicts. | At the baseline before and about 10-min after the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| P3-ERP | The P3 component of event-related brain potentials is a neuroelectric index of attention. Increased amplitude of P3 reflects greater allocation of attentional resources and the decreased latency of P3 reflects the faster information processing speed. |
| Measure | Description | Time Frame |
|---|---|---|
| State Mindfulness Scale for Physical Activity (SMSPA) | A developmentally-appropriate and validated 12-item, 5-point Likert scaled (0-4), instrument to measure self-reported mindfulness state in children aged above 10 years old. This measure will serve as a manipulation check on mindfulness induction during each of the 4 intervention conditions. | Immediately after completing the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| Measure | Description | Time Frame |
|---|---|---|
| Dispositional mindfulness | Child and Adolescent Mindfulness Measure (CAMM) provides a validated and reliable measure of dispositional mindfulness in children using 10 items and 5-point Likert scale (0-4), with a higher total score indicating the participant is more mindful. This measure will be used as the secondary outcome measure to to check the intervention manipulation. | At baseline on Day 1 before receiving any intervention |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Shih-Chun Kao, PhD | Contact | 765-496-2213 | kao28@purdue.edu |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Lambert, 800 West Stadium Avenue | Recruiting | West Lafayette | Indiana | 47907 | United States |
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| MF-only | Behavioral | A single bout of 20-min intervention mindfulness intervention that includes 5 x 90s mindful intervals separated by sitting rest |
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| HIIT-only | Behavioral | A single bout of 20-min HIIT protocol delivered through a motor-driven treadmill. The protocol will start with a 1.5-min warm-up, then a 16.5-min main exercise (6 x 90s exercise intervals separated by 5 x 90s rest intervals), and finally a 2-min cool-down. |
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| Sitting rest | Behavioral | Participants will sit in a comfortable chair, placed on the treadmill, while watching a HIIT video without mindfulness instructions for 20 minutes. |
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| At the baseline before and about 10-min after the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| Rating of perceived exertion | The 10-point Children's OMNI rating of perceived exertion will be used as a manipulation check on the intensity of prescribed exercise for the school-based programs as well as the laboratory-based acute interventions. | Measure at 0 second, 90 seconds, 180 seconds, 270 seconds, 360 seconds, 450 seconds, 540 seconds, 630 seconds, 720 seconds, 810 seconds, 900 seconds, 990 seconds, 1080 seconds and 1200 seconds of the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |
| Heart Rate | Heart rate will serve as a manipulation check on the intensity of prescribed exercise. | Heart rate will be measured at every minute (minutes 0, 1, 2, 3, 4, ...., 18, 19, 20) during the 20-min intervention on Day 2, Day 3, Day 4, and Day 5. |