Habitual and Neurocognitive Processes in Adolescent Obesity Prevention
The study tested an intervention that used a cue-removal and implementation intentions based strategy to change habitual dietary behaviors. The intervention was evaluated using a randomized experimental design that consisted of two conditions including (1) a control condition or (2) a cue and implementation intention-based intervention. High schools (N=22) were randomly assigned to one of the two conditions. Families (N=187), with a family defined as an adolescent and one participating parent, were recruited from within the 22 schools. All of the families from each school were assigned to the same condition.
Families that were eligible for the study and that were interested in participating scheduled an appointment to complete informed consent. After written parental consent and youth assent was obtained, the participants had their height and weight measured and completed a series of questionnaires programmed on laptops. In addition, the adolescent took part in a 24 Hour Dietary Recall Assessment. The family was also informed that a second 24 Hour Dietary Recall Assessment would be administered to the adolescent over the phone in approximately 3-14 days.
Families that were from a school assigned to the control condition received an intervention on sun safety that consisted of a 10-minute meeting with a trained Health Coach, two generic newsletters, an email, and a text message. Families from a school assigned to the cue- and implementation intentions condition received an intervention on healthy snacking and the reduction of sugar sweetened beverage consumption that consisted of a 90-minute meeting with a trained Health Coach, two 20-minute phone calls, four tailored newsletters, and a series of emails and text messages. Both of these interventions were delivered over a period of 3-10 weeks depending on the self-directed pace of the participants. All participants were then asked to complete a follow-up assessment appointment three months after their original consenting appointment. Our hypotheses focused on dietary behaviors and stated that adolescents assigned to the cue-removal and implementation intentions intervention would consume significantly fewer daily servings of high fat snacks, high sugar snacks, and sugar sweetened beverages than adolescents in the control condition.
A tanulmány áttekintése
Állapot
Beavatkozás / kezelés
Részletes leírás
Tanulmány típusa
Beiratkozás (Tényleges)
Fázis
- Nem alkalmazható
Részvételi kritériumok
Jogosultsági kritériumok
Tanulmányozható életkorok
Egészséges önkénteseket fogad
Tanulmányozható nemek
Leírás
Inclusion Criteria:
- Eligibility criteria for adolescents included being English-speaking,
- between the ages of 14 and 17,
- free of major illness,
- not receiving clinical treatment for obesity,
- possessing a cell phone with text messaging capability.
Exclusion Criteria:
- failure to meet inclusion criteria
Tanulási terv
Hogyan készül a tanulmány?
Tervezési részletek
- Elsődleges cél: Megelőzés
- Kiosztás: Véletlenszerűsített
- Beavatkozó modell: Párhuzamos hozzárendelés
- Maszkolás: Nincs (Open Label)
Fegyverek és beavatkozások
Résztvevő csoport / kar |
Beavatkozás / kezelés |
|---|---|
|
Kísérleti: Cue and Implementation-Intention
Families from a school assigned to Cue and Implementation Intention-Based Intervention received an intervention targeting increased levels of healthy snacking and reduced levels of sugar sweetened beverage consumption.
|
Families from a school assigned to Cue and Implementation Intention-Based Intervention received an intervention targeting increased levels of healthy snacking and reduced levels of sugar sweetened beverage consumption.
The intervention consisted of a 90-minute meeting with a trained Health Coach, two 20-minute phone calls, 4 tailored newsletters, and a series of emails and text messages.
Cues for snacking and sweetened beverage consumption were removed or relocated and implementation-intentions were created to trigger alternative behaviors to snacking and sweetened beverage consumption in the presence of cues.
Both interventions were delivered over 3-10 weeks depending on the self-directed pace of the participants.
All participants completed a follow-up assessment 3 months after consent.
|
|
Egyéb: Control Arm
Families that were from a school assigned to Control received an intervention on sun safety that consisted of a 10-minute meeting with a trained Health Coach, 2 generic newsletters, an email, and a text message.
|
Families that were from a school assigned to Control received an intervention on sun safety that consisted of a 10-minute meeting with a trained Health Coach, 2 generic newsletters, an email, and a text message.
Both interventions were delivered over 3-10 weeks depending on the self-directed pace of the participants.
All participants completed a follow-up assessment 3 months after consent.
|
Mit mér a tanulmány?
Elsődleges eredményintézkedések
Eredménymérő |
Intézkedés leírása |
Időkeret |
|---|---|---|
|
Sugar-Sweetened Beverage servings/day
Időkeret: 3 months
|
Change in Sugar-Sweetened Beverage consumption after intervention, through survey administration
|
3 months
|
|
Salty Snack servings/day
Időkeret: 3 months
|
Change in Salty Snack consumption after intervention, through survey administration
|
3 months
|
|
Sweet Snacks servings/day
Időkeret: 3 months
|
Change in Sweet Snack consumption after intervention, through survey administration
|
3 months
|
Együttműködők és nyomozók
Szponzor
Nyomozók
- Kutatásvezető: Kim D Reynolds, PhD, Claremont Graduate University
Tanulmányi rekorddátumok
Tanulmány főbb dátumok
Tanulmány kezdete (Tényleges)
Elsődleges befejezés (Tényleges)
A tanulmány befejezése (Tényleges)
Tanulmányi regisztráció dátumai
Először benyújtva
Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak
Első közzététel (Tényleges)
Tanulmányi rekordok frissítései
Utolsó frissítés közzétéve (Tényleges)
Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak
Utolsó ellenőrzés
Több információ
A tanulmányhoz kapcsolódó kifejezések
További vonatkozó MeSH feltételek
Egyéb vizsgálati azonosító számok
- U01HL097839 (Az Egyesült Államok NIH támogatása/szerződése)
Terv az egyéni résztvevői adatokhoz (IPD)
Tervezi megosztani az egyéni résztvevői adatokat (IPD)?
IPD terv leírása
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