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- Klinische proef NCT00608036
Evaluating the Relationship Between Physical Activity, Diet, Weight, and the Neighborhood Environment for Adolescents
Ecological Analysis of Activity, Eating, and Weight in Adolescents
Studie Overzicht
Toestand
Conditie
Gedetailleerde beschrijving
Obesity is an increasingly important health problem in the United States, particularly among adolescents. Previous studies among adults have shown that people who live in neighborhoods with good "walkability" and recreational environments have increased physical activity levels, and some studies have suggested that there is a relationship between the neighborhood food environment and eating patterns. While these concepts have been studied in adults, more research is needed on the effect of the neighborhood environment on adolescents. In this study, adolescents who live in select neighborhoods in Seattle-King County, WA and Baltimore-Washington, DC will be enrolled. Forty-eight neighborhoods in these areas will be studied, with researchers taking into account the neighborhoods' walkability levels (e.g., combination of street connectivity, residential density, land use mix, retail floor area ratio) and median income levels. Study researchers will examine and create formulas to measure walkability, pedestrian infrastructure, public recreation space, and nutrition environment quality. Researchers will also examine crime and weather patterns; psychosocial variables; parent support; and perceived neighborhood, school, and home environments. Overall, this study will evaluate the ability of a research model to explain the variation in physical activity levels, sedentary behavior, dietary patterns, and weight among adolescents, with an emphasis on neighborhood environment.
There will be no study visits for this study: participation will take place entirely through the mail, phone, or internet. Participants will include adolescents between the ages of 12 and 16 years old and their parents, all of whom live in the identified study neighborhoods. At the time of study entry, adolescents will complete a questionnaire on neighborhood and safety issues, diet, physical activity habits and places where activity occurs, grades, school policies and parental rules that affect physical activity and eating, and the support they get from people regarding healthy eating and physical activity. One parent of each adolescent will also complete a neighborhood information questionnaire. Adolescents will measure their height, weight, and waist circumference and send the measurements to study staff along with the questionnaire. Next, a 4-week period, study staff will call adolescents on three random days and collect information on their diet in the previous 24 hours. During this period, adolescents will wear an activity meter and a GPS monitor for 7 consecutive days and will mail the devices to study staff for analysis.
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
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California
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San Diego, California, Verenigde Staten, 92093
- University of California San Diego
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Washington
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Seattle, Washington, Verenigde Staten, 98105
- Children's Hospital and Regional Medical Center
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
- Child is between 12 and 16 years old
- Child and parent live in identified block group
- Child and parent speak English
- Child attends middle school or high school
Exclusion Criteria:
- Child must not have a diagnosed thought disorder, suicidality, substance abuse disorder, or other psychological or medical condition that would prevent full participation in the study
- Child must not have a disability or illness that would prevent moderate intensity physical activity
- Child must not have an eating disturbance indicative of significant eating disorder pathology
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Physical Activity measured with accelerometer
Tijdsspanne: Time 1
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Average minutes of moderate-to-vigorous physical activity per day, average minutes of sedentary time per day
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Time 1
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
---|---|---|
Diet measured with 24 hour dietary recall interviews
Tijdsspanne: Time 1
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Measures of diet quality
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Time 1
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: James F. Sallis, PhD, University of California, San Diego
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- 527
- R01HL083454 (Subsidie/contract van de Amerikaanse NIH)
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