- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT01411605
Influence of Cardio-ventilatory Factors on Exercise Intolerance in Obese Adolescents: Effects of Exercise Training (VENTILOBE)
Worldwide, childhood and adolescent obesity has reached epidemic proportions despite major efforts to promote weight reduction. Pediatric obesity commonly presages adult obesity and is associated with the development of weight-related comorbid conditions and increased morbidity.
Regular physical activity is an important modality of obesity management. Despite controversies, poor exercise tolerance has frequently been reported in youth obesity and the cause of this limited exercise tolerance remains unknown. Several factors accompanying obesity may interfere with exercise tolerance in obese populations. Respiratory factors, such as decreased thoracic compliance, increased airway resistance and breathing at low pulmonary volumes are associated with obesity and may impact exercise intolerance in this population. Moreover, even in people with otherwise normal lungs, the normal ventilatory responses to exercise can become constrained in obesity. A thorough understanding of the mechanisms underlying this exercise intolerance remains fundamental in order to favour long term adherence to exercise training. This is especially true in youth populations, in which the management of overweight and obesity must be undertaken as soon as possible, due to the early onset of cardiovascular risk factors.
The main purpose of this study is to determine early-onset cardio-respiratory mortality factors in obese adolescents as well as their relation with exercise intolerance (i.e. dyspnea) when compared with age and gender-paired normal-weight volunteers.
Descripción general del estudio
Descripción detallada
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Grenoble, Francia, 38000
- CHU Grenoble
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Male and female obese adolescents (BMI > IOTF 30, 12-16 years old)
Exclusion Criteria:
- Cardiovascular pathology
- Pathology interfering with physical activity (neurological pathology, severe respiratory illness i.e. asthma, renal failure)
- Diabetes (known or treated)
- Participation in another study
- Asthma (known and treated)
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Asignación: N / A
- Modelo Intervencionista: Asignación de un solo grupo
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Experimental: Exercise training
12-week supervised exercise-training (ET) program consisting of two 60-min and one 120-min exercise sessions per week which focus mainly on aerobic exercises (cycling, treadmill, rower). Initial aerobic exercise intensity is set at 60 % of HR peak and will reach 80 % at the end of the ET protocol. |
12-week supervised exercise-training (ET) program consisting of two 60-min and one 120-min exercise sessions per week which focus mainly on aerobic exercises (cycling, treadmill, rower). Initial aerobic exercise intensity is set at 60 % of HR peak and will reach 80 % at the end of the ET protocol. |
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
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Exercise tolerance (Expiratory flow limitation and Operational Lung Volumes at rest and exercise, cardiorespiratory and subjective responses to incremental exercise)
Periodo de tiempo: Participants will be followed for the duration of exercise training, an expected average of 12 weeks
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Participants will be followed for the duration of exercise training, an expected average of 12 weeks
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
---|---|---|
Polysomnography
Periodo de tiempo: Participants will be followed for the duration of exercise training, an expected average of 12 weeks
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Explore the potential existence of obstructive sleep apnea and its effects on cardiovascular adaptations during exercise.
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Participants will be followed for the duration of exercise training, an expected average of 12 weeks
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Cardiorespiratory fitness (VO2max)
Periodo de tiempo: Participants will be followed for the duration of exercise training, an expected average of 12 weeks
|
Participants will be followed for the duration of exercise training, an expected average of 12 weeks
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Bernard WUYAM, Dr, University Hospital, Grenoble
- Investigador principal: Claudine Perrin, MD, CHU Grenoble, Pediatrics Department
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- 0718
- 2007-A00714-49 (Identificador de registro: ID RCB)
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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