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Healthy VolunteerPhase 1/2NCT01888939

Effects of Interrupting Sedentary Behavior on Metabolic and Cognitive Outcomes in Children

A Phase 1/2 study testing Walking on a Treadmill and Sedendary Activities Only in people with Healthy Volunteer, run by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) 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

Background: Some studies in adults have found that insulin and glucose blood levels are lower when a long period of sitting is broken up with walking, compared to sitting without breaks. This means that the body can better process sugars when there are walking breaks during the day. Read more about this study

Who is it for?
Ages 7 to 11 years
Conditions the study is for
Healthy Volunteer
What is being tested?
Walking on a Treadmill and Sedendary Activities Only
How many people
89 participants
Where
1 siteUnited States
Study dates
26 Jun 2013to 29 Jan 2018
Phase
Phase 1/2
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 7 to 11 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Participants will qualify for the study if they meet the following criteria:
  • Good general health.
  • Age greater than or equal to 7 and <11.99 years.
  • Fasting plasma glucose < 100 mg/dL
  • a) Phase 1: Body mass index (BMI) between the 5th and 85th percentiles, as determined by the CDC age- and sex- specific growth charts.
  • Phase 2: BMI above the 85th percentile, as determined by the CDC age- and sex- specific growth charts.

Who cannot join

  • Significant cardiac or pulmonary disease likely to or resulting in hypoxia or decreased perfusion.
  • Evidence of impaired glucose tolerance or type 2 diabetes, including fasting plasma glucose greater than or equal to 100 mg/dL.
  • Presence of other endocrinologic disorders leading to obesity (e.g.: Cushing Syndrome).
  • Participants who have, or whose parent/guardians have, current substance abuse or a psychiatric disorder or other condition that, in the opinion of the investigators, would impede competence, compliance, or prevent the completion of the study.
  • Participants who have, or are currently receiving, anti-psychotic drugs that would affect metabolism, cognitive outcomes, and body habitus.
  • Participants receiving medical treatment other than diet for hypertension or dyslipidemia.
Show all 9Show fewer
  • Participants with precocious puberty and/or receiving androgen and estrogen therapy.
  • Participants currently taking medications for ADHD, or any disorder or use of medications known to affect body composition or weight.
  • Presence of pre-existing neurocognitive disabilities, or an age-adjusted score below 85 on the Picture Vocabulary Test at the screening visit.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center, 9000 Rockville Pike

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Background:

  • Some studies in adults have found that insulin and glucose blood levels are lower when a long period of sitting is broken up with walking, compared to sitting without breaks. This means that the body can better process sugars when there are walking breaks during the day. Researchers want to know if this is also true for children. Some studies have found that children s attention and memory might be better after exercise. Researchers want to know if short walking breaks have the same effects.
Read more

Objectives:

  • To understand if breaking up sitting with walking helps children s bodies better use sugars and improves children s concentration.

Eligibility:

  • Healthy children ages 7 to 11.

Design:

  • Participants will be screened with a physical exam, medical history, exercise test, picture vocabulary test, and medical tests including blood tests and X-rays.
  • Participants will return for two 7-hour visits. In the month before the visits, they will wear a physical activity monitor for one week so researchers know how active they are. Once they will take the sitting only test and once the sitting breaks test.
  • During the sitting only test, participants will sit for 3 hours.
  • During the sitting breaks test, they will sit for 3 hours with 3-minute walking breaks every 30 minutes.
  • Both days, they will drink sugar water. Then the participants will have blood drawn from a needle that is kept in place, and they will wear a heart monitor. They will take attention and working memory tests on a computer and answer questions about how they feel. They will eat a meal at the end of the test day.
Read the detailed description

Prevention of pediatric obesity and its complications are U.S. public health priorities. Promoting physical activity has been proposed as an intervention strategy. Apart from reducing excessive weight, physical activity improves cardiovascular fitness, insulin sensitivity, and academic performance. However, emerging evidence in adults suggests that increased physical activity may not entirely counteract the negative health effects of a sedentary lifestyle.

Sedentary behavior is defined as a set of low-intensity activities involving limited body movement (e.g.: TV viewing, prolonged sitting). TV viewing is associated with lower cognitive functioning and depressive symptoms. Some studies found higher levels of childhood sedentary behavior predicted higher body mass index (BMI) and cholesterol in adulthood, suggesting that negative health consequences may begin early. Dunstan et al. conducted the first lab-based study in adults investigating interrupting prolonged sedentary behavior with physical activity breaks. The authors found that for overweight adults, adding 2-minute moderate-intensity walking breaks every 20 minutes reduced postprandial insulin and glucose responses by 23.0% and 29.6%, respectively. Thus, interrupting sedentary behavior may be an intervention strategy to reduce health risks.

In children, cross-sectional observational studies indicate that sedentary behavior patterns characterized by short bouts of activity are not associated with increased cardiometabolic risk. However to date, no in-lab studies have manipulated sedentary behavior in children. Therefore, we propose to conduct a randomized crossover pilot feasibility study to assess whether interrupting sedentary behavior influences metabolic and executive function, attention, mood, anxiety, and dietary intake. Children, ages 7-11 years, will complete two conditions in random order: 3 hours of prolonged sitting and 3 hours of sitting interrupted with 3 minutes of moderate-intensity walking every 30 minutes. The specific aim of this project is to investigate whether interrupting sedentary behavior improves metabolic parameters and changes executive function, attention, mood, anxiety, and dietary intake. The primary hypothesis is that postprandial insulin incremental area under the curve (iAUC) will be lower in the interrupted sitting vs. the prolonged sitting condition. The exploratory secondary hypotheses are that glucose iAUC, executive function, attention, mood, anxiety, and dietary intake will differ between the two conditions.

This project will investigate if interrupting sedentary time affects potential negative health consequences of sedentary behavior in children. If interrupting sedentary time in short bouts has beneficial effects among children, interventions examining the frequency, duration, and intensity of such interruptions could be developed. Thus, these results have the potential to provide insight into novel behavioral intervention targets in youth.

Being tested
Walking on a Treadmill, Sedendary Activities Only
Keywords
Executive Function, Child, Obesity, Exercise, Insulin Sensitivity
Medical subject headings
Obesity, Motor Activity, Insulin Resistance

What participants receive

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

  • Walking on a TreadmillOther

  • Sedendary Activities OnlyOther

What is being measured

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

  1. Lower insulin incremental area under the curve (iAUC) during 3 hours after the OGTT.

    Measured: 3 hours

Secondary outcomes (5)
  1. Lower postprandial glucose iAUC during 3 hours after the OGTT.

    Measured: 3 hours

  2. Differences in executive functioning and attention scores.

    Measured: 3 hours

  3. Differences in positive and negative affect scores.

    Measured: 3 hours

  4. Differences in anxiety.

    Measured: 3 hours

  5. Differences in post-test dietary intake.

    Measured: 3 hours

Timeline

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

  1. First posted28 Jun 2013 (estimated)
  2. Study start26 Jun 2013
  3. Primary completion8 Mar 2017
  4. Study completion29 Jan 2018

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
89 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01888939
Sponsor's protocol ID
130169
Other IDs
13-CH-0169
Status last verified
29 Jan 2018
First submitted
26 Jun 2013
Last updated
31 Jan 2018
Results posted
No

Publications

  • Kuczmarski RJ, Ogden CL, Guo SS, Grummer-Strawn LM, Flegal KM, Mei Z, Wei R, Curtin LR, Roche AF, Johnson CL. 2000 CDC Growth Charts for the United States: methods and development. Vital Health Stat 11. 2002 May;(246):1-190.

    PubMed 12043359
  • Jago R, Harrell JS, McMurray RG, Edelstein S, El Ghormli L, Bassin S. Prevalence of abnormal lipid and blood pressure values among an ethnically diverse population of eighth-grade adolescents and screening implications. Pediatrics. 2006 Jun;117(6):2065-73. doi: 10.1542/peds.2005-1716.

    PubMed 16740849
  • Ventura E, Davis J, Byrd-Williams C, Alexander K, McClain A, Lane CJ, Spruijt-Metz D, Weigensberg M, Goran M. Reduction in risk factors for type 2 diabetes mellitus in response to a low-sugar, high-fiber dietary intervention in overweight Latino adolescents. Arch Pediatr Adolesc Med. 2009 Apr;163(4):320-7. doi: 10.1001/archpediatrics.2009.11.

    PubMed 19349560
  • Belcher BR, Berrigan D, Papachristopoulou A, Brady SM, Bernstein SB, Brychta RJ, Hattenbach JD, Tigner IL Jr, Courville AB, Drinkard BE, Smith KP, Rosing DR, Wolters PL, Chen KY, Yanovski JA. Effects of Interrupting Children's Sedentary Behaviors With Activity on Metabolic Function: A Randomized Trial. J Clin Endocrinol Metab. 2015 Oct;100(10):3735-43. doi: 10.1210/jc.2015-2803. Epub 2015 Aug 27.

    PubMed 26312582

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Walking on a Treadmill and Sedendary Activities Only in people with Healthy Volunteer, run by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) 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 6 inclusion and 9 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 31 Jan 2018. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

Lower insulin incremental area under the curve (iAUC) during 3 hours after the OGTT. (time frame: 3 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01888939, which also lists 4 linked publications.

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 31 Jan 2018.

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