- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning 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.
Studieöversikt
Detaljerad beskrivning
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
-
Grenoble, Frankrike, 38000
- CHU Grenoble
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
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)
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
---|---|
Experimentell: 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. |
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
---|---|
Exercise tolerance (Expiratory flow limitation and Operational Lung Volumes at rest and exercise, cardiorespiratory and subjective responses to incremental exercise)
Tidsram: 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
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Polysomnography
Tidsram: Participants will be followed for the duration of exercise training, an expected average of 12 weeks
|
Explore the potential existence of obstructive sleep apnea and its effects on cardiovascular adaptations during exercise.
|
Participants will be followed for the duration of exercise training, an expected average of 12 weeks
|
Cardiorespiratory fitness (VO2max)
Tidsram: 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
|
Samarbetspartners och utredare
Sponsor
Utredare
- Huvudutredare: Bernard WUYAM, Dr, University Hospital, Grenoble
- Huvudutredare: Claudine Perrin, MD, CHU Grenoble, Pediatrics Department
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 0718
- 2007-A00714-49 (Registeridentifierare: ID RCB)
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