Clinical trial NCT02833051: The Impact of an Acute Bout of Exercise on Children's Eating Behaviors
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Pediatric Obesity
Lead sponsor: Penn State University
Sponsor class: OTHER
First posted: 2016-07-14
Enrollment: 40
Sex: ALL
Minimum age (years): 9
Maximum age (years): 12
Standard ages: CHILD
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: CROSS_SECTIONAL
Sampling method: PROBABILITY_SAMPLE
Study population: Children ages 9-12 years old

Brief summary: The purpose of this project is to examine the effects of an acute bout of exercise on children's energy intake over the course of a day. Previous studies in adolescents and adults have shown exercise to be effective in decreasing short-term energy intake, with some variability. Individual characteristics such as habitual physical activity and psychological factors may influence the effect of exercise on energy intake, but these factors have yet to be examined. The investigators have assembled a multi-disciplinary team of researchers, with expertise in eating behavior, exercise, psychology, and clinical research in order to examine these questions. First, the investigators will examine the difference in energy intake at lunch, snack, and dinner meals in response to 30 minutes of imposed exercise compared to 30 minutes of rest. Second, the investigators will collect objective measures of children's habitual physical activity, child characteristics (body composition, eating behavior traits), and individual responses to the controlled exercise bout. The investigators can then examine both group and individual differences in the energy intake response to exercise. Children (ages 9-12) will be tested over the course of three visits. The key outcome will be differences in energy intake in response to exercise vs. rest. Secondary outcomes include the influence of differences in habitual physical activity, personal characteristics, and responses to the exercise bout on children's energy intake. The long term goal of this line of research is to understand the mechanisms behind the interaction between exercise and energy intake. The translational potential of this research will be to inform personalized childhood obesity prevention strategies in children at risk for overweight.


Eligibility criteria: Inclusion Criteria:

* English as a native language
* Reading at/above grade level
* Generally healthy
* Child is "normal weight" below the 85% age- and sex-specific BMI percentile
* Child has at least one biological parent classified as "overweight" or "obese" (≥ 25 kg/m\^2)
* Regularly eats breakfast

Exclusion Criteria:

* Contraindications to exercise testing (as defined by the American College of Sports Medicine)
* Medical conditions
* Psychiatric conditions
* Participation in competitive sports teams (year-round or more than 3 practices / week)
* Food allergies or other dietary restrictions

Primary outcomes:
measure: Baseline energy intake
timeFrame: Collected at week 1 of the study
measure: Energy intake following exercise
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Energy intake following sedentary control
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Activity-related energy expenditure - Baseline day
timeFrame: Collected in the laboratory at week 1, 2, and 3, and at home for one week between the 2nd and 3rd laboratory visits
measure: Activity-related energy expenditure - Exercise day
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Activity-related energy expenditure - Sedentary control day
timeFrame: Collected at week 2 or 3 (randomized) of the study
Secondary outcomes:
measure: Baseline submaximal fitness test performance
timeFrame: Collected at week 1 of the study
measure: Exercise test performance (70% intensity) - Heart rate
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Exercise test performance (70% intensity) - Blood pressure
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Exercise test performance (70% intensity) - Ratings of perceived exertion
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Exercise test performance (70% intensity) - Completion
timeFrame: Collected at week 2 or 3 (randomized) of the study
measure: Child sleep patterns
timeFrame: Collected at home for one week between the 2nd and 3rd laboratory visits
measure: Child physical activity patterns
timeFrame: Collected at home for one week between the 2nd and 3rd laboratory visits
Other outcomes:
measure: Liking of foods
timeFrame: Collected at week 1 and 2 of the study
measure: Wanting of foods
timeFrame: Collected at week 1 and 2 of the study
measure: Fullness feelings
timeFrame: Collected at multiple time points during weeks 1, 2, and 3
measure: Height
timeFrame: Collected at week 1
measure: Weight
timeFrame: Collected at week 1
measure: Body fat percentage
timeFrame: Collected at week 1
measure: Body mass index
timeFrame: Collected at week 1
measure: BMI percentile
timeFrame: Collected at week 1
measure: BMI z-score
timeFrame: Collected at week 1
measure: Fat mass index
timeFrame: Collected at week 1
measure: Fat-free mass index
timeFrame: Collected at week 1
measure: Appetitive traits
timeFrame: Collected at week 1
measure: Pubertal development
timeFrame: Collected at week 1
measure: Family demographics
timeFrame: Collected at week 1
Locations:
city: University Park
country: United States
facility: The Pennsylvania State University
state: Pennsylvania
Study officials:
References: