Document Detail

Effects of exercise mode and intensity on postprandial thermogenesis in lean and obese men.
MedLine Citation:
PMID:  1601783     Owner:  NLM     Status:  MEDLINE    
To characterize further the impact of exercise before a meal on thermogenesis, the effects of exercise intensity and mode and the duration of the effect of exercise on the thermic effect (TEF) of a 720-kcal mixed meal were compared in 10 lean and 10 obese men (16 +/- 1 vs. 34 +/- 2% fat). In study A, TEF (kcal/3 h) was significantly greater for the lean than the obese men during rest and immediately after 1 h of cycling at 50 and 100 W. TEF was significantly greater after both exercise intensities than during rest for the obese men, but exercise had no effect on TEF in the lean men. In study B, TEF was significantly greater for the lean than the obese men during rest and immediately after 1 h of leg cycling at an O2 consumption of 1.09 l/min but only marginally different after 1 h of arm exercise at the same O2 consumption (P = 0.15). For the obese men, TEF was greater after arm than leg cycling and greater after leg cycling than at rest (P less than 0.01), but TEF was not different among the three conditions for the lean men. In study C, TEF was compared at rest and immediately and 24 h after 1 h of cycling at 100 W. TEF was greater for the lean than the obese men under all conditions (P less than 0.05). For the obese but not the lean men, TEF was greater both immediately after and on the day after exercise than at rest (P less than 0.01). Thus, acute exercise improves but does not normalize the blunted TEF in obesity; a minimally intense bout of exercise is needed to improve TEF; exercise mode alters thermogenesis in the obese men, even at a fixed intensity; and TEF in the obese men is enhanced for as long as 24 h after exercise.
K R Segal; A Chun; P Coronel; V Valdez
Related Documents :
2926693 - Genetic analyses of photoresponsiveness in the djungarian hamster, phodopus sungorus.
19700043 - Altered resting and exercise respiratory physiology in obesity.
16645293 - A five-week exercise program can reduce falls and improve obstacle avoidance in the eld...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  72     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  1992 May 
Date Detail:
Created Date:  1992-07-13     Completed Date:  1992-07-13     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol (1985)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1754-63     Citation Subset:  IM    
Department of Pediatrics, Mount Sinai School of Medicine, New York, New York 10029.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Basal Metabolism
Blood Glucose / metabolism
Body Temperature Regulation / physiology*
Eating / physiology
Energy Metabolism / physiology
Exercise / physiology*
Insulin / blood
Obesity / physiopathology*
Grant Support
Reg. No./Substance:
0/Blood Glucose; 0/Insulin

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

Previous Document:  Vagal function impairment after exercise training.
Next Document:  Kinetics of CO uptake and diffusing capacity in transition from rest to steady-state exercise.