Source:http://linkedlifedata.com/resource/pubmed/id/19685411
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
2009-10-30
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pubmed:abstractText |
The purpose of this study was to test the hypothesis that in obese children: 1) Ventilatory efficiency (VentE) is decreased during graded exercise; and 2) Weight loss through diet alone (D) improves VentE, and 3) diet associated with exercise training (DET) leads to greater improvement in VentE than by D. Thirty-eight obese children (10+/-0.2 years; BMI >95th percentile) were randomly divided into two study groups: D (n=17; BMI=30+/-1 kg/m (2)) and DET (n=21; 28+/-1 kg/m (2)). Ten lean children were included in a control group (10+/-0.3 years; 17+/-0.5 kg/m (2)). All children performed maximal treadmill testing with respiratory gas analysis (breath-by-breath) to determine the ventilatory anaerobic threshold (VAT) and peak oxygen consumption (VO (2) peak). VentE was determined by the VE/VCO (2) method at VAT. Obese children showed lower VO (2) peak and lower VentE than controls (p<0.05). After interventions, all obese children reduced body weight (p<0.05). D group did not improve in terms of VO (2) peak or VentE (p>0.05). In contrast, the DET group showed increased VO (2) peak (p=0.01) and improved VentE (DeltaVE/VCO (2)=-6.1+/-0.9; p=0.01). VentE is decreased in obese children, where weight loss by means of DET, but not D alone, improves VentE and cardiorespiratory fitness during graded exercise.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
1439-3964
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pubmed:author | |
pubmed:copyrightInfo |
(c) Georg Thieme Verlag KG Stuttgart . New York.
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pubmed:issnType |
Electronic
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pubmed:volume |
30
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
821-6
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pubmed:meshHeading |
pubmed-meshheading:19685411-Anaerobic Threshold,
pubmed-meshheading:19685411-Carbon Dioxide,
pubmed-meshheading:19685411-Child,
pubmed-meshheading:19685411-Exercise Test,
pubmed-meshheading:19685411-Exercise Therapy,
pubmed-meshheading:19685411-Humans,
pubmed-meshheading:19685411-Obesity,
pubmed-meshheading:19685411-Oxygen Consumption,
pubmed-meshheading:19685411-Pulmonary Gas Exchange,
pubmed-meshheading:19685411-Weight Loss
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pubmed:year |
2009
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pubmed:articleTitle |
Weight loss associated with exercise training restores ventilatory efficiency in obese children.
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pubmed:affiliation |
Medical School, Department of Endocrinology, University of São Paulo, Endocrinology, São Paulo, Brazil. danilomprado@usp.br
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pubmed:publicationType |
Journal Article,
Comparative Study,
Randomized Controlled Trial
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