Document Detail


Metabolic propensity toward obesity in black vs white females: responses during rest, exercise and recovery.
MedLine Citation:
PMID:  8696425     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To examine the existence of a metabolic propensity toward the development of obesity in black vs white females. DESIGN: Cross-sectional comparison of responses during 30 min of rest, 30 min of treadmill exercise at 65% VO2max, and 30 min of recovery. SUBJECTS: 22 (11 black, 11 white) healthy, normal weight, sedentary females with a family history of obesity. MEASUREMENTS: Biometric measures (body mass index, waist-to-hip ratio, and body composition by hydrodensiometry) to insure inter-group homogeneity. Oxygen consumption (VO2), respiratory exchange ratio (RER), insulin, glucose and free fatty acids (FFA) during rest, exercise and recovery were measured to test for metabolic differences between the groups. RESULTS: Black females displayed lower VO2 during rest (p = 0.04) and recovery (p = 0.04), higher RER during rest, exercise and recovery (p = 0.003), and higher levels of insulin (p = 0.03). No significant differences were observed for levels of blood glucose (p = 0.29) or serum FFA (p = 0.73). CONCLUSION: Normal weight black and white females with comparable family histories of obesity exhibit dissimilar metabolic responses during rest, exercise and recovery. Lower rates of oxygen consumption, higher metabolic reliance on carbohydrate, and higher levels of insulin may slowly impact energy balance predisposing these black females toward the eventual onset of obesity.
Authors:
L F Chitwood; S P Brown; M J Lundy; M A Dupper
Related Documents :
4077995 - Behavior therapy techniques applied to eating, exercise, and diet modification in child...
12364425 - Exercise decreases plasma total homocysteine in overweight young women with polycystic ...
1640865 - Postprandial thermogenesis at rest and postexercise before and after physical training ...
20721335 - Effects of aquajogging in obese adults: a pilot study.
17465635 - Hypertonic (3%) sodium chloride for emergent treatment of exercise-associated hypotonic...
10731455 - Training effects of accumulated daily stair-climbing exercise in previously sedentary y...
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity     Volume:  20     ISSN:  0307-0565     ISO Abbreviation:  Int. J. Obes. Relat. Metab. Disord.     Publication Date:  1996 May 
Date Detail:
Created Date:  1996-09-05     Completed Date:  1996-09-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9313169     Medline TA:  Int J Obes Relat Metab Disord     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  455-62     Citation Subset:  IM    
Affiliation:
Department of Exercise Science and Leisure Management, University of Mississippi, University 38677, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
African Continental Ancestry Group*
Blood Glucose / metabolism
Cross-Sectional Studies
Energy Metabolism
European Continental Ancestry Group*
Exercise / physiology*
Fatty Acids, Nonesterified / blood
Female
Humans
Insulin / blood
Obesity / physiopathology*
Oxygen Consumption
Pulmonary Gas Exchange
Rest / physiology*
Risk Factors
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Fatty Acids, Nonesterified; 11061-68-0/Insulin

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


Previous Document:  Obesity and risk of gallstone development on a 1200 kcal/d (5025 Kj/d) regular food diet.
Next Document:  Weight fluctuation, mortality and vascular disease in Pima Indians.