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Completed

NCT Number: NCT02784509

Translational Investigation of Growth and Everyday Routines in Kids

The purpose of this study is to determine the effect of severe obesity on physical activity, sedentary behavior and cardiometabolic risk factors during childhood and adolescence and whether these associations are modified by race. Additionally, the study will investigate the contributions of (total, regional, and depot-specific) fat accumulation on changes in physical activity, sedentary behavior, and cardiometabolic risk factors during childhood and adolescence.

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Key information

Conditions

Childhood Obesity Behavior Body Weight Motor Activity Nutrition Disorders Nutritional and Metabolic Diseases Obesity Overnutrition Overweight Pathological Conditions, Signs and Symptoms Pediatric Obesity Sedentary Behavior Signs and Symptoms

Age range

10 year–16 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Pennington Biomedical Research Center

Baton Rouge, Louisiana, 70808, United States

About this study

The proposed study will establish a prospective pediatric cohort to identify intervention targets based on the location, timing, barriers, and facilitators of current physical activity and sedentary behavior in a child's day. The project will be a prospective examination of 340 African American and White girls and boys aged 10 to 16 years, including 50% who are classified as severely obese. State-of-the-art technology will be used including accelerometry to quantify physical activity, magnetic resonance imaging to quantify fat accumulation, and geographic position system and ecological momentary assessment to identify environmental and socio-emotional barriers and facilitators. In further detail, this study will examine the following objectives:

Objective 1: Determine the effect of severe obesity on physical activity, sedentary behavior, and cardiometabolic risk factors during childhood and adolescence and whether these associations are modified by race.

Objective 2: Investigate the contribution of (total, regional, and depot-specific) fat accumulation on changes in physical activity, sedentary behavior, and cardiometabolic risk factors during childhood and adolescence.

Objective 3: Determine barriers and facilitators of physical activity that are related to obesity, including environmental and socio-emotional factors.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age 10-16 years
  • Body weight < 500 lbs.
  • Ability to understand instructions and complete all study procedures

Exclusion criteria

  • Pregnant
  • On a restrictive diet due to illness
  • Significant physical or mental disabilities that impede walking, wearing accelerometer or GPS, or responding to EMA.

Treatment and study plan

Primary outcomes

  1. Objective 1 Primary Outcome: Change in Minutes of Sedentary Behavior, Light Physical Activity, and Moderate-to-vigorous Physical Activity

    Time frame: Baseline and Year 2

    Physical activity and sedentary behavior will be measured by a triaxial accelerometer (Actigraph GT3X+, Actigraph of Ft. Walton Beach, FL). The participant will be instructed to wear the accelerometer on an elasticized belt, on the left mid-axillary line. The Actigraph is one of the most common accelerometers used for scientific purposes. Participants will be encouraged to wear the accelerometer 24-hours per day for at least 7-days (plus an initial familiarization day and the morning of the final day), including 2 weekend days. Participants will also complete a Lifestyle survey to collect information including diet and physical activity habits.

  2. Objective 2 Primary Outcome: Relationship Between Total Fat Accumulation and Change in Sedentary Behavior - Visceral Adipose Tissue

    Time frame: Baseline and Year 2

    Body composition will be determined by DXA and MRI. With DXA, total body fat and trunk fat will be measured by whole-body DXA using a GE iDXA scanner (GE Medical Systems, Milwaukee, WI) to quantify total and regional body fat (including trunk fat). MRI - Visceral fat, i.e. visceral adipose tissue, will be measured by water-fat shifting MRI using the General Electric Discovery 750w 3.0 Tesla (GE Medical Systems, Milwaukee, WI). IDEAL-IQ imaging technique will be used to generate water-only, fat-only, in-phase, and out-of-phase echoes in a single acquisition with a 20-second breath-hold. Sedentary behavior will be measured by a a triaxial accelerometer as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

  3. Objective 2 Primary Outcome: Relationship Between Total Fat Accumulation and Change in Sedentary Behavior - Adiposity

    Time frame: Baseline and Year 2

    Body composition will be determined by DXA and MRI. With DXA, total body fat and trunk fat will be measured by whole-body DXA using a GE iDXA scanner (GE Medical Systems, Milwaukee, WI) to quantify total and regional body fat (including trunk fat). MRI - Visceral fat, i.e. visceral adipose tissue, will be measured by water-fat shifting MRI using the General Electric Discovery 750w 3.0 Tesla (GE Medical Systems, Milwaukee, WI). IDEAL-IQ imaging technique will be used to generate water-only, fat-only, in-phase, and out-of-phase echoes in a single acquisition with a 20-second breath-hold. Sedentary behavior will be measured by a a triaxial accelerometer as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

  4. Objective 2 Primary Outcome: Relationship Between Total Fat Accumulation and Change in Sedentary Behavior - Body Fat (%)

    Time frame: Baseline and Year 2

    Body composition will be determined by DXA and MRI. With DXA, total body fat and trunk fat will be measured by whole-body DXA using a GE iDXA scanner (GE Medical Systems, Milwaukee, WI) to quantify total and regional body fat (including trunk fat). MRI - Visceral fat, i.e. visceral adipose tissue, will be measured by water-fat shifting MRI using the General Electric Discovery 750w 3.0 Tesla (GE Medical Systems, Milwaukee, WI). IDEAL-IQ imaging technique will be used to generate water-only, fat-only, in-phase, and out-of-phase echoes in a single acquisition with a 20-second breath-hold. Sedentary behavior will be measured by a a triaxial accelerometer as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

  5. Objective 2 Primary Outcome: Relationship Between Total Fat Accumulation and Change in Sedentary Behavior. - Waist Circumfrence

    Time frame: Baseline and Year 2

    Body composition will be determined by DXA and MRI. With DXA, total body fat and trunk fat will be measured by whole-body DXA using a GE iDXA scanner (GE Medical Systems, Milwaukee, WI) to quantify total and regional body fat (including trunk fat). MRI - Visceral fat, i.e. visceral adipose tissue, will be measured by water-fat shifting MRI using the General Electric Discovery 750w 3.0 Tesla (GE Medical Systems, Milwaukee, WI). IDEAL-IQ imaging technique will be used to generate water-only, fat-only, in-phase, and out-of-phase echoes in a single acquisition with a 20-second breath-hold. Sedentary behavior will be measured by a a triaxial accelerometer as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

Secondary outcomes

  1. Objective 1 Secondary Analysis: Change in Daily Moderate to Vigorous Physical Activity (MVPA) Minutes Between Years.

    Time frame: Baseline and Year 2

    MVPA measured by a triaxial accelerometer (Actigraph GT3X+, Actigraph of Ft. Walton Beach, FL) as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

  2. Objective 1 Secondary Analysis: Change in Days/Week of Physical Activity Between Years.

    Time frame: Baseline and Year 2

    MVPA measured by a triaxial accelerometer (Actigraph GT3X+, Actigraph of Ft. Walton Beach, FL) as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

  3. Objective 2 Secondary Analysis: Relationship Between Fat Mass Accumulation and Change in Physical Activity.

    Time frame: Baseline and Year 2

    Body composition will be determined by DXA and MRI. With DXA, total body fat and trunk fat will be measured by whole-body DXA using a GE iDXA scanner (GE Medical Systems, Milwaukee, WI) to quantify total and regional body fat (including trunk fat). MRI - Visceral fat, i.e. visceral adipose tissue, will be measured by water-fat shifting MRI using the General Electric Discovery 750w 3.0 Tesla (GE Medical Systems, Milwaukee, WI). IDEAL-IQ imaging technique will be used to generate water-only, fat-only, in-phase, and out-of-phase echoes in a single acquisition with a 20-second breath-hold. Physical Activity will be measured by a triaxial accelerometer as described in outcome 1. Participants will also complete a Lifestyle survey to collect information including physical activity habits.

Sponsors and collaborators

Lead sponsor

Pennington Biomedical Research Center

Other

Collaborators

  • USDA Beltsville Human Nutrition Research Center

Registry information

Official study title

Translational Investigation of Growth and Everyday Routines in Kids (TIGER Kids)

Acronym: TIGER Kids

Important dates

Study start
2016
Primary completion
2020
Study completion
2020
First posted
May 27, 2016
Registry last updated
Dec 24, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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