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High Intensity Interval TrainingNCT05137990

The HIIT Cognition Study

A study testing HIIT Exercise Intervention and Stretching Intervention in people with High Intensity Interval Training and Overweight and Obesity, run by University of Southern California at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This pilot study is a randomized control trial to test the effects of a 14-week home-based virtual, interactive high intensity interval training (HIIT) exercise intervention on cardiometabolic and cognitive outcomes in sedentary youth with overweight/obesity during adolescence. Read more about this study

Who is it for?
Ages 12 to 16 yearsHealthy volunteers can take part
What is being tested?
HIIT Exercise Intervention and Stretching Intervention
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
6 participants
Where
1 siteUnited States
Study dates
1 Mar 2021to 30 Sep 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 12 to 16 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Typically developing youth.
  • Overweight/obese (BMI >= 85th percentile)
  • Does not meet current PA guidelines
  • Able and willing to complete HIIT exercise intervention.
  • Space for a stationary bike in the residence.

Who cannot join

  • Diagnoses of neurodevelopment or psychiatric disorders.
  • Diabetes, cardiovascular, pulmonary, or other significant medical problems.
  • Taking medications know to alter metabolism.
  • Allergy to metals.
  • Inability to participate in HIIT-based exercise or active involvement in sports/exercise programs.
  • Pregnancy.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Southern California

    Los Angeles, California, 90032

Other trials in United States

About this study

Official title: The Effects of High Intensity Exercise in Teens on Cognition

This pilot study is a randomized control trial to test the effects of a 14-week home-based virtual, interactive high intensity interval training (HIIT) exercise intervention on cardiometabolic and cognitive outcomes in sedentary youth with overweight/obesity during adolescence. All participants (N=24) will complete screening via phone to determine eligibility. Eligible participants will be randomized to receive a) 14 weeks of a home-based HIIT intervention delivered via iPad or b) 14 weeks of a stretching intervention (control group). Each participant will undergo an in-lab pre- and post-test visit, where they will complete a fasting blood draw, a fitness test, and various cognitive and mental health measures.

Read the detailed description

Rationale: Existing literature supports the premise that physical activity (PA) has beneficial effects on cognitive function in youth, but prior studies have limitations, such as cross-sectional designs with limited insights on the intensity or duration of PA or the biological underpinnings linking physical activity and mental health and cognitive function in adolescents. A limited number of studies (and none in the U.S.) have evaluated the effects of HIIT on cognitive processes in youth, particularly in youth with overweight/obesity whose age-related declines in PA puts them at increased risk for poor outcomes. This study is particularly timely during the current COVID-19 related public health crisis because our HIIT exercise intervention is time efficient, delivered remotely, and completed using space-efficient equipment in the home.

Intervention: Participants (youth ages 12-16 years with overweight/obesity) will be randomly assigned to complete a) 14 weeks of a home-based virtual, interactive HIIT intervention or b) 14 weeks of a stretching intervention (control group).

Objectives/Purpose: The overall goal is to improve cognitive and cardiometabolic outcomes in youth with overweight/obesity by implementing an at-home HIIT intervention. The aims of this study are: 1) to determine the feasibility, acceptability, and efficacy of HIIT in adolescents with overweight/obesity, 2) to examine the effectiveness of HIIT on cognitive and mental health outcomes, and 3) to examine the effectiveness of HIIT on cardiometabolic health.

Study Population: This study will consist of youth ages 12-16 years with overweight/obesity (BMI >=85th percentile) who do not meet current PA guidelines.

Study Methodology: This pilot study is a randomized control trial to test the effects of a 14-week home-based virtual, interactive high intensity interval training (HIIT) exercise intervention on cardiometabolic and cognitive outcomes in sedentary youth with overweight/obesity during adolescence. All participants (N=24) will complete screening via phone to determine eligibility. Eligible participants will be randomized to receive a) 14 weeks of a home-based HIIT intervention delivered via iPad (HIIT group) or b) 14 weeks of a stretching intervention (control group).

Those randomized to the HIIT group will receive the intervention 3 times/week and will be given a pre-assembled stationary bicycle to use to complete each exercise session, an iPad to Zoom with the exercise trainers, and a Fitbit to assess real-time heart rate. Exercise trainers will provide encouragement and supervision for exercise prescription adherence and youth will select an age-appropriate music playlist from Spotify to enhance enjoyment throughout each session. Each exercise session consists of a 5-minute warm-up (10% HRmax), followed by a 20-minute HIIT protocol. The 20-minute HIIT protocol consists of seven bouts of 1-min high intensity exercise (90% HRmax) followed by 2-min of active recovery (10% HRmax). Participants will be encouraged to complete each exercise session with at least 24 hours of rest between each session.

Those randomized to the control group will perform a home-based program of the same stretches utilized in the exercise group. The stretching protocol consists of one set of 4 static stretching exercises held for 30 seconds and performed 3 days/week. As flexibility exercises are low-intensity, low-impact and low-volume, minimal caloric expenditure is expected to be incurred.

Study arms: Study participants will be randomly assigned to receive either the HIIT intervention (HIIT group) or receive the stretching intervention (control group).

Endpoints/Outcomes: The primary cognitive and mental health endpoints are: executive function, episodic memory, working memory, affect, mood, anxiety, stress, self-efficacy for PA, and PA enjoyment. The primary cardiometabolic endpoints are: glucose, insulin (to calculate Homeostatic Model Assessment for Insulin Resistance), IL-6, IL-1, TNF-a, and VEGF.

Statistical analyses: The populations for analyses include the full analytical dataset which consists of all randomized study participants.

Being tested
HIIT Exercise Intervention, Stretching Intervention
Keywords
High Intensity Interval Training, Physical Activity, Pediatric Obesity, Metabolic Disturbances, Mental Health
Medical subject headings
Overweight, Obesity, Metabolic Diseases, Motor Activity, Pediatric Obesity, Psychological Well-Being

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • HIIT Exercise InterventionBehavioural

    Also called Exercise group

    Exercise trainers will provide encouragement and supervision for exercise prescription adherence and youth will select an age-appropriate music playlist from Spotify to enhance enjoyment throughout each session. Each exercise session consists of a 5-minute warm-up (10% HRmax), followed by a 20-minute HIIT protocol. The 20-minute HIIT protocol consists of seven bouts of 1-min high intensity exercise (90% HRmax) followed by 2-min of active recovery (10% HRmax). Participants will be encouraged to complete each exercise session with at least 24 hours of rest between each session.

  • Stretching InterventionBehavioural

    Also called Control group

    This group will perform a home-based program of the same stretches utilized in the exercise group. The stretching protocol consists of one set of 4 static stretching exercises held for 30 seconds and performed 3 days/week. As flexibility exercises are low-intensity, low-impact and low-volume, minimal caloric expenditure is expected to be incurred. To increase compliance and aid in the standardization of the home-based stretching, participants will be provided a booklet of the flexibility exercises. Participants will be shown how to use the booklet and instructed in the stretching exercises by an exercise trainer prior to the intervention.

Study groups in NCT05137990
Study groupRoleWhat they receive
HIIT Exercise InterventionExperimentalAt home (N=12): Participants will complete an exercise session 3 times a week for 14 weeks. Each participant will receive a pre-assembled stationary bicycle to use to complete each session, an iPad to receive the intervention virtually from exercise trainers through Zoom, and a Fitbit to assess real-time heart rate.
Receives: Behavioral: HIIT Exercise Intervention
Stretching InterventionPlacebo comparatorAt home (N=12): Participants will complete a stretching protocol 3 times a week for 14 weeks. Participants will be asked to complete weekly records of flexibility compliance.
Receives: Behavioral: Stretching Intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Measures of intervention feasibility

    percent of youth who complete an average of 70% of weekly minutes and percent of youth who attend 70% of exercise sessions

    Measured: 14 weeks

  2. Measures of intervention efficacy

    percent of sessions where youth achieve their target heart rate

    Measured: 14 weeks

  3. Intervention Feasibility Measure

    4-item scale with scores for each ranging from 1 to 5, higher scores indicate a better outcome for feasibility

    Measured: 14 weeks

  4. Intervention Acceptability Measure

    4-item scale with scores for each ranging from 1 to 5; higher scores indicate a better outcome for acceptability

    Measured: 14 weeks

  5. Intervention Appropriateness Measure

    4-item scale with scores for each ranging from 1 to 5; higher scores indicate a better outcome for appropriateness

    Measured: 14 weeks

  6. Cognitive function measures

    executive function, episodic and working memory tasks from NIH Toolbox, all age-adjusted T-scores

    Measured: 14 weeks

  7. Positive and Negative Affect Scale for Children

    10-item positive and negative affect scale with scores for each ranging from 0 to 5; higher scores indicate a worse outcome for negative affect and better outcome for positive affect

    Measured: 14 weeks

  8. Profile of Mood States for Adolescents

    24-item scale with each ranging from 0 to 4; higher scores indicate a worse mood outcome

    Measured: 14 weeks

  9. State-Trait Anxiety Inventory for Children

    20-item scale measuring acute and long-term anxiety, with a range from 20 to 80; higher scores indicate more anxiety

    Measured: 14 weeks

  10. Perceived Stress Scale

    10-item scale with each ranging from 0 to 4; higher scores indicate a worse stress outcome after reverse coding applicable items

    Measured: 14 weeks

  11. Stress in Children Scale

    21-item scale with each ranging from 0 to 4; higher scores indicate a worse stress outcome after reverse coding applicable items

    Measured: 14 weeks

  12. Self-Efficacy for Physical Activity Scale

    5-item scale with each ranging from 1 to 5; higher scores indicating a better self-efficacy for physical activity outcome

    Measured: 14 weeks

  13. Physical Activity Enjoyment Scale

    18-item scale with each ranging from 1 to 7; higher scores indicate a better physical activity enjoyment outcome after reverse coding applicable items

    Measured: 14 weeks

  14. Glucose Sensitivity

    glucose, insulin (to calculate Homeostatic Model Assessment for Insulin Resistance)

    Measured: 14 weeks

  15. Markers of inflammation

    interleukin-1 (IL-1), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-a), all in pg/mL

    Measured: 14 weeks

  16. Vascular Endothelial-Derived Growth

    vascular endothelial growth factor (VEGF) in pg/mL

    Measured: 14 weeks

  17. Cardiorespiratory Fitness

    maximal oxygen consumption (VO2max)

    Measured: 14 weeks

  18. Blood Pressure

    systolic and diastolic blood pressure

    Measured: 14 weeks

  19. Body proportion

    waist-to-height ratio

    Measured: 14 weeks

  20. Body composition

    percent body fat

    Measured: 14 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted30 Nov 2021
  2. Study start1 Mar 2021
  3. Primary completion30 Sep 2023
  4. Study completion30 Sep 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants will be randomized to complete one of two conditions: 1) 14 weeks of a home-based virtual HIIT exercise intervention or 2) 14 weeks of a stretching intervention (control group).
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05137990
Sponsor's protocol ID
HS-21-00149
Status last verified
May 2024
First submitted
6 Oct 2021
Last updated
7 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: We do not intend to share IPD with other researchers outside of our study.

Questions about this trial

What is this clinical trial studying?

A study testing HIIT Exercise Intervention and Stretching Intervention in people with High Intensity Interval Training and Overweight and Obesity, run by University of Southern California at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measures of intervention feasibility (time frame: 14 weeks). The study lists 20 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 May 2024.

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