Home-Based Circuit Training in Adults With Obesity (HBCT)
Effects of Home-Based Circuit Training on Vascular and Metabolic Health in Adults With Obesity: A Randomized Controlled Trial
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Obesity is a major public health concern associated with endothelial dysfunction, arterial stiffness, metabolic impairment, and reduced physical fitness. Although exercise training is recommended for obesity management, adherence to supervised exercise programs may be limited by time constraints and accessibility. Home-based circuit training may provide a feasible alternative that combines aerobic and resistance exercise within a time-efficient format.
This randomized controlled trial investigates the effects of a 12-week home-based circuit training intervention on vascular function, body composition, metabolic function, resting metabolic rate, substrate oxidation, physical activity, and physical fitness in adults with obesity.
Participants with obesity (BMI ≥ 27.5 kg/m²) will be randomly assigned to either a circuit training group or a control group. The intervention group will perform home-based circuit training using light-to-moderate resistance three times weekly for 12 weeks, while the control group will maintain usual activities.
Primary vascular outcomes include flow-mediated dilation, carotid intima-media thickness, brachial-ankle pulse wave velocity, and post-occlusive reactive hyperemia. Secondary outcomes include body composition, fasting plasma glucose, resting metabolic rate, substrate oxidation, physical activity, muscular strength, flexibility, and cardiorespiratory fitness.
The study aims to determine whether home-based circuit training can improve vascular and metabolic health and serve as a practical strategy for reducing cardiovascular risk in adults with obesity.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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ฺBangkok
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Bangkok, ฺBangkok, Thaïlande, 10330
- Faculty of Sports Science, Chulalongkorn University
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
Accepte les volontaires sains
La description
Inclusion Criteria:
- Adults with obesity according to the Asia-Pacific criteria (body mass index [BMI] ≥ 27.5 kg/m²).
- Able to participate in a home-based exercise program.
- Willing to provide written informed consent.
Exclusion Criteria:
- History of uncontrolled diabetes (HbA1c ≥ 10% or blood glucose ≥ 200 mg/dL).
- Uncontrolled hypertension (≥ 140/90 mmHg).
- Cardiovascular disease.
- Chronic obstructive pulmonary disease.
- Orthopedic conditions limiting exercise participation.
- Participation in regular exercise programs or sports activities within the previous 3 months
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: Home-Based Circuit Training
Participants in this group will perform a 12-week home-based circuit training program three times per week.
Each session includes warm-up, circuit exercise, and cool-down components designed to improve vascular and metabolic health.
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Participants will perform a 12-week home-based circuit training program three times per week. Each session includes warm-up, circuit-based exercises targeting major muscle groups, and cool-down activities. The intervention is designed to improve vascular and metabolic health in adults with obesity. The training program consisted of two phases: phase 1 (weeks 1-6) and phase 2 (weeks 7-12). During phase 1, participants performed resistance exercises at an intensity of 65-70% of one-repetition maximum (1RM). Each exercise consisted of 12 repetitions, with a 1-minute rest between exercises. The lifting tempo was maintained at 2:2 (concentric: eccentric). Participants completed 8 exercises per circuit for a total of 3 circuits, with a 2-minute rest between circuits. During phase 2, the intensity was increased to 70-75% of 1RM, while maintaining 12 repetitions per exercise. The rest interval between exercises was reduced to 30 seconds, with the same lifting tempo (2:2). Participants complete |
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Aucune intervention: Control Group
participants in the control group will maintain their usual daily activities without participating in the exercise intervention during the study period.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Vascular Function
Délai: Baseline and 12 weeks
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Change in flow-mediated dilation from baseline to 12 weeks.
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Baseline and 12 weeks
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Directeur d'études: Daroonwan Suksom, PhD, Faculty of Sports Science, Chulalongkorn University, Bangkok, Thailand
- Chercheur principal: Tunyakarn Worasettawat, PhD, Faculty of Sports Science, Chulalongkorn University, Bangkok, Thailand
- Chaise d'étude: Hirofumi Tanaka, PhD, Department of Kinesiology and Health Education, The University of Texas at Austin, USA
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
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 (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
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
- HBCT-OB-2026
- Ratchadapisek Postdoctoral (Autre subvention/numéro de financement: Chulalongkorn University)
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Informations sur les médicaments et les dispositifs, documents d'étude
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