Myocardial and peripheral vascular responses to behavioral challenges and their stability in Black and White Americans

Patrice Saab, Maria Llabre, Barry Hurwitz, C. A. Frame, L. J. Reineke, A. I. Fins, Judith McCalla, L. K. Cieply, Neil Schneiderman

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

The purpose of this study was to assess the short term stability of myocardial and peripheral vascular responses to behavioral challenges, and to compare the response patterns of Black and White men. Blood pressure and heart rate, as well as stroke volume, cardiac output, total peripheral resistance, and systolic time interval measures derived from the impedance cardiogram were obtained in 12 Black and 12 White men. These measures were taken prior to and during an evaluative speech stressor, a mirror star tracing task, and a forehead cold pressor test presented during two laboratory sessions scheduled two weeks apart. In general, total peripheral resistance and impedance-derived baseline measures showed acceptable reproducibility (G>.85). With a few exceptions, adequate reliability was also demonstrated for change (delta) scores. All tasks raised blood pressure responses above resting levels. Blacks demonstrated significantly greater increases in total peripheral resistance responses across tasks. Whites but not Blacks also revealed increases above baseline in cardiac output and contractility as estimated by the Heather Index. These findings are consistent with the view that Blacks show greater vascular responsiveness than Whites across a variety of tasks, but reveal less myocardial responsiveness.

Original languageEnglish
Pages (from-to)384-397
Number of pages14
JournalPsychophysiology
Volume29
Issue number4
StatePublished - Jan 1 1992

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Vascular Resistance
Blood Vessels
Electric Impedance
Cardiac Output
Blood Pressure
Cardiac Volume
Forehead
Systole
Stroke Volume
Heart Rate
hydroquinone

Keywords

  • Cardiac output
  • Heather Index
  • Impedance cardiography
  • Race
  • Test-retest reliability
  • Total peripheral resistance

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)
  • Psychology(all)
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology

Cite this

Myocardial and peripheral vascular responses to behavioral challenges and their stability in Black and White Americans. / Saab, Patrice; Llabre, Maria; Hurwitz, Barry; Frame, C. A.; Reineke, L. J.; Fins, A. I.; McCalla, Judith; Cieply, L. K.; Schneiderman, Neil.

In: Psychophysiology, Vol. 29, No. 4, 01.01.1992, p. 384-397.

Research output: Contribution to journalArticle

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