ClinicalTrials.gg
CompletedNCT03342924Updated Nov 17, 2017

Associations of Cognition, Fitness, and Body Composition Among Ethnic Minority Youth

An interventional study of Flanker Test and physical fitness test in Obesity, Physical Activity and Cognitive Function 1, Social, sponsored by University of Miami. Completed at 1 site in United States. Open to participants aged 8 Years to 12 Years. Per ClinicalTrials.gov, last updated 2017-11-17.

Sponsored by University of Miami · Not applicable, Interventional, and Other

From the registry’s dates

  • Registered 3 years 1 month after the study started (first participant enrolled Jun 2014, registered Jul 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
212
Allocation
Not applicable
Ages
8 Years to 12 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 24 studies in Obesity by University of Miami — 3 open to participants now, 3 under way, none of them phase 3. Obesity · University of Miami.

Enrollment
7th of 23
212 · median 35
Started
2014
with 2 others
No phase
19 of 24
3 open now
Registered
14th of 24
by date

Among the 24 studies in Obesity by University of Miami, this one is the 7th largest by enrollment of the 23 interventional ones that give a count, is one of 3 that started in 2014, is one of 19 with no phase, and was the 14th registered.

Obesity

11,522 studies on the registry are indexed under Obesity; 2,033 are open to participants now.

Browse Obesity studies →

Open to participants now

3 of the 24 studies in Obesity by University of Miami are open now, in 1 country. Recruiting first, the newest first:

By country, each count listing its studies:

All 3 open studies →

Where they have run

Who these studies take

Of the 1,336 Obesity studies recruiting now, 377 (28%) set no upper age limit and 856 (64%) stop at 75 or younger; 168 take children under 18; 491 take healthy volunteers.

This study: 8 Years to 12 Years · all sexes · no healthy volunteers.

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02

Study summary

Cognitive Control is crucial for learning and development. This study examined the associations between cognitive control and physical fitness and body composition among ethnic minority children.

Read the detailed description

Cognitive control, or executive function, refers to a subset of goal-directed processes that are involved in perception, memory, attention, behavioral inhibition, verbal reasoning, and monitoring of actions. These aspects of cognitive control have been shown to have a direct association with academic performance, particularly mathematics and literacy. Many social and environmental factors impact the maturation of cognitive control, which can affect the growth and behavioral development of children. Physical activity has been shown to improve the functioning of the prefrontal cortex, which plays a central role in cognitive functioning. Studies have shown that children have better cognitive skills and grades when given a regimen of regular physical activity as well as executive control. Aerobic fitness has been correlated with faster reaction times as well as more accurate responses and higher prefrontal brain activity, which can enhance visuomotor function and proactive inhibition. In addition to positive health benefits, physical fitness, a product of the regular physical activity, is found to be positively associated with self-esteem, academic performance, and cognitive control. Growing evidence suggests that cognitive control may be inversely associated with obesity in childhood, adulthood, and in the elderly. The current rate of childhood obesity in the U.S. is 31.8% with poor physical fitness levels and increased sedentary behaviors as major contributors to the problem. Pediatric obesity may have negative implications on cognition, specifically memory, psychomotor speed, reaction time, complex attention, executive function and cognitive flexibility with a potential for decreased awareness or motivation in girls specifically. Overweight, inactive children, when compared to normal weight, active children, have exhibited lower planning and attention scores with detrimental effects on inhibitory control and psychosocial outcomes among girls ages nine to fifteen While new information continues to support the negative association between obesity and cognitive function, the direction of the relationship remains unclear. The extant literature also suggests that there is an inverse relationship between socioeconomic status and obesity and cognition. A recent study supported the influence of BMI on child executive control and BMI's inverse correlation with income, academic readiness, social competence and behavioral adjustment. Another study showed that white non-Hispanic and Hispanic children in fifth and seventh grades with lower socioeconomic status had a higher rate of obesity with inverse relationship most apparent in White non-Hispanic girls and fifth-grade Hispanic boys. A negative association has been observed between obesity and pattern construction in boys and vocabulary and pattern construction in girls. While there have been cross-sectional and randomized clinical trial studies correlating obesity and fitness with cognitive control, these studies fail to evaluate diverse racial/ethnic minority populations. Incorporating minority groups and gender differences into these associations are very important in generalizing findings to diverse demographics. Given the paucity of research examining the cumulative impact of obesity and physical fitness on cognition among diverse children, this study seeks to address gaps in the literature. This study utilized a comprehensive field test battery to evaluate associations among body composition, cardiovascular endurance, muscular strength and endurance, and motor skills, on executive control with gender, age, and race/ethnicity as mediators. This study is particularly relevant for Hispanic and African-American youth who show high rates of overweight and obesity

03

Conditions studied

  • Obesity
  • Physical Activity
  • Cognitive Function 1, Social

Keywords

  • cognitive control
  • physical fitness
  • minority
04

Who can participate

Ages eligible
8 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Children were included in the study if they were: eight to 12 years old, and ethnic minority (Black and/or Hispanic/Latino), enrolled in YMCA after-school programs, able to engage in physical activities, had normal (or corrected to normal) vision based on the minimal 20/20 standard. Also, only children who were determined to be at Tanner Stages 1 or 2 (preadolescence) were included to account for the impact of puberty on measures of physical fitness and cognition.

Exclusion criteria

Exclusion Criteria:

  • Children who had prior or current metabolic, cardiovascular, or neurological disorders, and/or medication regimens that could interfere with evaluation of cognitive function were excluded from the study.
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
212 participants (actual)

Study arms

  • Experimental
    Flanker test and physical fitness test

    Participants performed a computer-based Flanker Task measuring cognitive control and physical fitness tests: two-minute walk, vertical jump, one-minute curl-ups, and handgrip strength. Body composition variables included: body mass index, percent body fat, waist circumference, and sagittal abdominal height. General linear models were performed to evaluate impacts of physical fitness and body composition on cognition, adjusting for age and sex.

    Other: Flanker Test and physical fitness test

Interventions

  • OtherFlanker Test and physical fitness test

    Socioeconomic status was determined using a trichotomous index. Inbody was used to assess body composition. To assess physical fitness, certain field tests were implemented using devices to quantify precise actions of physicality. Cognitive control was assessed using a computer-based Flanker Task.

06

What researchers measure

Primary outcomes

  1. Cognition

    Cognitive control was assessed using a computer-based Flanker Task.

    Time frame: 8 weeks

Secondary outcomes

  1. Socioeconomic Status

    Socioeconomic status was determined using a trichotomous index developed by Birnbaum et al. 2002 based on participation in free or reduced-price lunch program at school, the highest level of education attained by the mother and father, and the number of parents who worked full-time.

    Time frame: 8 weeks

  2. Aerobic Endurance

    To assess physical fitness, certain field tests were implemented using devices to quantify precise actions of physicality. The NIH Toolbox two-minute Walk Endurance test was used to assess aerobic endurance.

    Time frame: 8 weeks

  3. Arm Strength

    To assess physical fitness, certain field tests were implemented using devices to quantify precise actions of physicality.. A Jamar Plus handgrip dynamometer was used to assess right and left arm strength (kg).

    Time frame: 8 weeks

  4. Lower Body Power

    To assess physical fitness, certain field tests were implemented using devices to quantify precise actions of physicality. To assess lower body power, a counter movement vertical jump was used.

    Time frame: 8 weeks

  5. Weight

    The Inbody-520 multi-frequency bioimpedance analyzer was used to assess body composition. Information recorded included body weight, which was measured in pounds.

    Time frame: 8 weeks

  6. Waist Circumference

    Waist circumference was used as a determinant of central obesity and was measured in centimeters using a Gulick spring loaded measuring tape.

    Time frame: 8 weeks

  7. Sagittal Abdominal Height

    A portable anthropometer was used to measure sagittal abdominal height in centimeters as an indirect measure of visceral adiposity.

    Time frame: 8 weeks

  8. Percent Body Fat

    The Inbody-520 multi-frequency bioimpedance analyzer was used to assess body composition. Information recorded included percent body fat.

    Time frame: 8 weeks

  9. Body Mass Index

    The Inbody-520 multi-frequency bioimpedance analyzer was used to assess body composition. Information recorded included Body Mass Index.

    Time frame: 8 weeks

  10. Height

    Height was measured using a Weigh Beam Eye-Level physicians' scale

    Time frame: 8 weeks

07

Study locations

1 site
  • Le Bonheur
    Memphis, Tennessee 38103, United States
08

References and documents

Individual participant data

Plan to share: No — Only the study investigators and/or sponsor will monitor the plan for data and safety monitoring for this study. Shared data will be done through encrypted files and file management platform OneDrive.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2014 to primary completion in Jun 2014, 0 months.

Of 3,680 non-industry interventional studies with no phase under Obesity, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 43. This study's 0 months is below that.

Counting every sponsor, half of 3,843 studies reached it within 22 months; a quarter within 10 and three quarters within 42.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 13, 2017
First posted
Nov 17, 2017
StartActual
Jun 2014
Primary completionActual
Jun 2014
CompletionActual
Jun 2014
Last update
Nov 17, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 17, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03342924
Responsible party
Arlette Perry (Professor, University of Miami) — Principal investigator
First posted
Nov 17, 2017
Start date
Jun 2014
Primary completion
Jun 2014
Completion
Jun 2014
Last update
Nov 17, 2017

Study contacts

Brian Anwari
principal investigator · University of Miami

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2017. You cannot join it, but the record below documents what was studied.

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