Community Based Obesity Prevention Among Blacks
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Long-term promotion of physical activity is necessary to achieve obesity prevention. This represents a particular challenge for our intervention design, as few studies have demonstrated positive long-term physical activity promotion outcomes among Black women. We have demonstrated the utility of pedometers among low income, ethnically diverse populations. The efficacy of pedometer utilization for the prevention of weight gain, however, hinges on long-term utilization of the devices. We hypothesize that recommendation for the step count attainment may affect individual's long-term utilization of pedometers, as well as physical activity levels and BMI.
This study is a 24-week experimental trial to examine whether intervention recommendations promote long-term adherence to a pedometer-based physical activity regimen. A two-group, block design will be used in the proposed study. Eligible women will be randomly assigned to one of two experimental conditions (n=75 per condition): 1) receiving a 10,000 steps/day recommendation and 3 health education sessions or 2) receiving an adaptive recommendation and an obesity prevention intervention. The adaptive step recommendation will update participants' recommended step counts, starting at 7,000 steps/day, then 8,000 steps/day, then finally 10,000 steps/day. Participants in the adaptive recommendation group will be provided with 3 educational sessions and will be asked to report their daily progress on weight maintenance goals via text message.
Participants will be provided pedometers and will be asked to wear them every day of the 24-week trial period.
Assessments (including self-report survey and anthropometric measurements) will be conducted at baseline, 12 weeks and 24 weeks post-baseline.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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North Carolina
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Durham, North Carolina, États-Unis, 27705
- Duke University
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Female
- Ages 25 and over
- BMI 25 and over
- English fluency
- Not currently pregnant
- No restrictions to ambulatory activity
Exclusion Criteria:
- Current pregnancy
- Childbearing in the past 12 months
- History of myocardial infarction or stroke in last 2 years
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Comparateur actif: 10,000 step/day recommendation
Participants will receive a standard 10,000 step/day recommendation and 3 education sessions: at baseline, at 3 months and at 6 months.
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Participants will receive a standard 10,000 step/day recommendation and 3 education sessions: at baseline, at 3 months and at 6 months.
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Expérimental: Adaptive recommendation
The adaptive recommendation will update the participant's recommended step count attainment from 7,000 to 8,000, then 10,000 steps/day.
The SMS-based self-monitoring system will collect three data points each day from participants in this group: 1) total number of steps/d recorded by the pedometer during the previous day (steps/d); 2) performance on 2nd weight loss goal; and 3) performance on 3rd weight loss goal.
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Participants in this group receive 3 education sessions: at baseline, at 3 months and at 6 months.
The adaptive recommendation will update the participant's recommended step count attainment from 7,000 to 8,000, then 10,000 steps/day.
The SMS-based self-monitoring system will collect three data points each day from participants in this group: 1) total number of steps/d recorded by the pedometer during the previous day (steps/d); 2) performance on 2nd weight loss goal; and 3) performance on 3rd weight loss goal.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
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Adherence to the pedometer-based physical activity regimen
Délai: 24 weeks post baseline
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24 weeks post baseline
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
|---|---|
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Change in physical activity
Délai: 24 weeks post baseline
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24 weeks post baseline
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Change in BMI
Délai: 24 weeks post baseline
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24 weeks post baseline
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Gary Bennett, PhD, Duke University
Publications et liens utiles
Liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 2794
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