A Facebook-based Weight Loss Programme for Obese Adults in Hong Kong
Effects of a Facebook-based Weight Loss Programme for Obese Adults in Hong Kong
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Obese individuals often are at higher risk for developing non-communicable diseases such as diabetes and cardiovascular disease. The regular physical activity, healthy diet and social support have been shown to be beneficial for weight loss.
This is a two-arm parallel design randomized controlled trial for 6 months. Participants who completed the baseline assessment will be randomly allocated, after stratified by gender, to either a control group or Facebook-based intervention group. The control group will receive information on healthy eating, physical activity, obesity and cancer via three government printed health pamphlets. In addition to the government health pamphlets, the intervention group will receive a programme delivered through Facebook.
The interventions include participation in a private research group on Facebook for health education, self monitoring and social support. Participants will receive 12 weekly lessons related to nutrition, physical activity, Chinese food therapy, acupressure, weight loss. A registered nutritionist and a registered Chinese medicine practitioner will join the Facebook group as health partners. Both of them are also registered nurses.
Data collection will be carried out at baseline, 3 months and 6 months. Each time, both groups will complete online questionnaires and attend in-person anthropometric measurements
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Hong Kong, Hong Kong
- The Hong Kong Polytechnic 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:
- university full-time employees;
- age 18 to 60 years,
- BMI of 25 to 40 kg/m2,
- have access to Internet and Facebook;
- able to communicate in both English and Chinese at F.5 secondary school level or above.
- agree to communicate with Internet, email, Facebook group and respect privacy.
Exclusion Criteria:
- Smoker;
- an unstable medical or mental status;
- history of myocardial infarction or stroke, or cancer in the past 5 years;
- orthopedic or joint problems that would prohibit exercise;
- in treatment for alcohol or drug dependency;
- an eating disorder;
- pregnant, breastfeeding, or planning on becoming pregnant within the next 6 months;
- use of medication that might affect body weight;
- a recent weight loss of more than 4.5 kg in the previous 6 months;
- currently participating in a weight loss program;
- organic obesity;
- unable to attend assessments or increase physical activity.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: Intervention Group
Lifestyle Intervention: The interventions include participation in a private research group on Facebook for health education, self monitoring and social support. Participants will receive 12 weekly lessons related to nutrition, physical activity, Chinese food therapy, acupressure, weight loss. A registered nutritionist and a registered Chinese medicine practitioner will join the Facebook group as health partners. Both of them are also registered nurses. Besides the Facebook contents, the participants will also receive government printed health information on healthy eating, physical activity, obesity and cancers. |
East-meets-West Lifestyle Intervention elements include nutrition and exercise from the Western perspective, food therapy and acupressure from the Traditional Chinese Medicine perspective, self-monitoring, and motivational videos of successful stories from working colleagues.
The group participants in the Facebook are encouraged to post their health behaviors and questions, self-monitor, pledge for weight loss, seek social support and interact with health partners and other participants.
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Aucune intervention: Control Group
The participants randomized into the Control Group will only receive government printed health information on healthy eating, physical activity, obesity and cancers.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Changes in body weight
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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Weights will be taken in light clothes without shoes using a digital scale
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in Body Mass Index
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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Height will be taken at baseline using a wall-mounted stadiometer.
BMI will be calculated as weight (kg)/height (m2)
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in waist circumference
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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Waist circumference will be measured by using an inelastic tape measure
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Measures are done in three time points: baseline, 3 months and 6 months
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Changes in Stages of Change
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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A 5-item questionnaire will be used to categorize participants into stages of change (pre-contemplation, contemplation, preparation, action, maintenance)
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in weight self-efficacy
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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Self-efficacy for weight loss will be assessed by using a 20-item Weight Efficacy Lifestyle Questionnaire (WEL).
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in physical activity self-efficacy
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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A questionnaire of perceived confidence to engage in physical activity under a variety of circumstances on a 5-point Likert scale will be used.
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in weight decisional balance
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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A 20-item questionnaire of perceived pros and cons of weight loss on a 5-point Likert scale.
The balance of the two scores >0 indicate more advantages than disadvantages to weight loss
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in social support
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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A questionnaire will be used to measure the perceived support and sabotage from friends and family for healthy eating and physical activity
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in dietary intake of fruits and vegetables
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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A questionnaire will be used to assess self-reported intake of fruits and vegetables in terms of portion size and frequency
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Measures are done in three time points: baseline, 3 months and 6 months
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Changes in physical activity
Délai: Measures are done in three time points: baseline, 3 months and 6 months
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The International Physical Activity Questionnaire will be used to assess the changes in physical activity
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Measures are done in three time points: baseline, 3 months and 6 months
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: WanChaw SHAE, The Hong Kong Polytechnic University
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (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
- 20131213002
Plan pour les données individuelles des participants (IPD)
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