Document Detail


Effects of race and marginally elevated blood pressure on responses to stress.
MedLine Citation:
PMID:  3692569     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A total of 228 men, aged 18 to 22 years (109 black and 119 white), underwent monitoring of heart rate (HR) and systolic (SBP) and diastolic blood pressure (DBP) responses during several stressor conditions and a 30-minute posttask rest period. Stressors included the cold pressor test and three reaction-time tasks: noncompetitive, competitive, and competitive plus money incentive. Substantial within-subject variations in blood pressure and heart rate were induced, varying from 119/70 to 148/94 mm Hg and from 63 to 91 beats/min on the average. Men (25 black and 39 white) with marginal SBP elevations during initial casual determinations had higher SBP under all conditions compared with men whose casual SBP levels were normal, and they also showed greater elevations over baseline levels in heart rate, SBP, and DBP during the stressors and the initial casual determination. Black and white subjects did not differ in their blood pressures at baseline or during the initial casual determinations, although blacks had slightly lower heart rates. Blacks did show greater SBP elevations over baseline levels than whites during the stressors, primarily because the blacks with marginally elevated SBP showed substantially greater stress-induced increases than whites with marginally elevated SBP. This enhanced pressor response to stress in blacks with marginal blood pressure elevations may be due to higher vascular resistance during enhanced sympathetic activity and could contribute to the higher incidence of hypertension among blacks.
Authors:
K C Light; P A Obrist; A Sherwood; S A James; D S Strogatz
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Hypertension     Volume:  10     ISSN:  0194-911X     ISO Abbreviation:  Hypertension     Publication Date:  1987 Dec 
Date Detail:
Created Date:  1988-02-02     Completed Date:  1988-02-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7906255     Medline TA:  Hypertension     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  555-63     Citation Subset:  IM    
Affiliation:
Department of Psychiatry, University of North Carolina, Chapel Hill 27514.
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MeSH Terms
Descriptor/Qualifier:
Adult
African Americans
Blood Pressure*
Continental Population Groups*
European Continental Ancestry Group
Heart Rate
Humans
Hypertension / ethnology*,  physiopathology
Male
Reaction Time
Stress, Physiological / physiopathology*
Stress, Psychological / physiopathology*
United States
Vascular Resistance
Grant Support
ID/Acronym/Agency:
HL-01011/HL/NHLBI NIH HHS; HL-01096/HL/NHLBI NIH HHS; HL-31533/HL/NHLBI NIH HHS

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