Document Detail

Oxygen uptakes adjusted for body composition in normal-weight and obese adolescents.
MedLine Citation:
PMID:  15044669     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To test whether resting oxygen uptake (VO(2)), submaximal VO(2), and maximal VO(2) (VO(2max)) differs between obese adolescents (n = 18; BMI > 30) and a matched normal-weight control group after adjustment for differences in fat-free mass (FFM) and fat mass (FM). RESEARCH METHODS AND PROCEDURES: FFM and FM were assessed by DXA. Resting VO(2), submaximal VO(2), and VO(2max) were measured by indirect calorimetry. RESULTS: There was no difference in resting VO(2) between groups after adjusting for FFM and FM. Submaximal VO(2) did not differ between groups after adjusting for body weight. Percentage VO(2max) and NET VO(2) (VO(2max) - resting VO(2)) were significantly higher in the obese group during submaximal exercise, however not after adjusting for body weight. VO(2max) was not significantly different between groups after adjusting for FFM. DISCUSSION: When body compositions are appropriately controlled for, resting VO(2), submaximal VO(2), and VO(2max) do not differ between obese and normal-weight adolescents. These data suggested that the higher relative VO(2) observed in obese adolescent subjects is due to their higher FM and not to an impaired VO(2max) even though they may be less physically active.
Ulf Ekelund; Paul W Franks; Nicolas J Wareham; Jan Aman
Related Documents :
23423629 - Ten-week whole-body vibration training improves body composition and muscle strength in...
20336309 - Application of bioreactance for cardiac output assessment during exercise in healthy in...
10634279 - Ambulance, fire, and police dispatch times compared with the atomic clock.
16200029 - Effects of short term cast wearing on respiratory and cardiac responses to submaximal a...
10751189 - Endurance exercise training attenuates leucine oxidation and bcoad activation during ex...
24278869 - Regular exercise modulates obesity factors and body composition in sturdy men.
6812659 - Pulse injection, 13c tracer studies of lactate metabolism in humans during rest and two...
23247709 - Skeletal muscle metabolism in endurance athletes with near-infrared spectroscopy.
3752219 - Purposeful activity and performance.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Obesity research     Volume:  12     ISSN:  1071-7323     ISO Abbreviation:  Obes. Res.     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2004-03-26     Completed Date:  2004-07-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9305691     Medline TA:  Obes Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  513-20     Citation Subset:  IM    
Medical Research Council Epidemiology Unit, Cambridge, United Kingdom.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Adipose Tissue
Body Composition*
Body Weight*
Calorimetry, Indirect
Energy Metabolism
Heart Rate
Obesity / metabolism*
Oxygen Consumption*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  BMI is the main determinant of the circulating leptin in women after vertical banded gastroplasty.
Next Document:  Hyperadiponectinemia in newborns: relationship with leptin levels and birth weight.