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
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
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.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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ฺBangkok
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Bangkok, ฺBangkok, Tailândia, 10330
- Faculty of Sports Science, Chulalongkorn University
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
Aceita Voluntários Saudáveis
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Experimental: 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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Sem intervenção: 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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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Vascular Function
Prazo: 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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Colaboradores e Investigadores
Patrocinador
Investigadores
- Diretor de estudo: Daroonwan Suksom, PhD, Faculty of Sports Science, Chulalongkorn University, Bangkok, Thailand
- Investigador principal: Tunyakarn Worasettawat, PhD, Faculty of Sports Science, Chulalongkorn University, Bangkok, Thailand
- Cadeira de estudo: Hirofumi Tanaka, PhD, Department of Kinesiology and Health Education, The University of Texas at Austin, USA
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- HBCT-OB-2026
- Ratchadapisek Postdoctoral (Número de outro subsídio/financiamento: Chulalongkorn University)
Plano para dados de participantes individuais (IPD)
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Descrição do plano IPD
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