Reliability of hematocrit during rest and stress in healthy adults

Research output: Contribution to journalArticlepeer-review

Standard

Reliability of hematocrit during rest and stress in healthy adults. / Ring, Christopher; Patterson, SM; Bacon, SL; Veldhuijzen van Zanten, Joachimina; Willemsen, G; Carroll, Douglas.

In: Biological Psychology, Vol. 77, No. 1, 01.01.2007, p. 63-68.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Author

Bibtex

@article{564c303bc4634839a3d575205bb3300a,
title = "Reliability of hematocrit during rest and stress in healthy adults",
abstract = "Hematocrit has been implicated in the triggering of cardiovascular events and the development of cardiovascular disease. Studies have demonstrated the reliability of hematocrit at rest, however, data are lacking about hematocrit during repeated acute stress exposures. The current study assessed the reliability of hematocrit during rest and stress. Hematocrit was measured in two sessions during rest and in response to mental, cold and exercise stress in 84 healthy men and women. The stress tasks consistently elicited increases in hematocrit. Absolute levels of hematocrit were highly reliable between testing sessions. Changes in hematocrit with exercise stress were reliable whereas changes associated with mental and cold stress were not reliable between sessions. The findings indicate that hemoconcentration during brief mental and physical stress is more reliable for absolute levels than change scores. The reliability of stress-induced hemoconcentration may be improved by more provocative challenges and repeated sampling during stress.",
keywords = "stress, reliability, Hematocrit, hemoconcentration",
author = "Christopher Ring and SM Patterson and SL Bacon and {Veldhuijzen van Zanten}, Joachimina and G Willemsen and Douglas Carroll",
year = "2007",
month = jan,
day = "1",
doi = "10.1016/j.biopsycho.2007.09.005",
language = "English",
volume = "77",
pages = "63--68",
journal = "Biological Psychology",
issn = "0301-0511",
publisher = "Elsevier",
number = "1",

}

RIS

TY - JOUR

T1 - Reliability of hematocrit during rest and stress in healthy adults

AU - Ring, Christopher

AU - Patterson, SM

AU - Bacon, SL

AU - Veldhuijzen van Zanten, Joachimina

AU - Willemsen, G

AU - Carroll, Douglas

PY - 2007/1/1

Y1 - 2007/1/1

N2 - Hematocrit has been implicated in the triggering of cardiovascular events and the development of cardiovascular disease. Studies have demonstrated the reliability of hematocrit at rest, however, data are lacking about hematocrit during repeated acute stress exposures. The current study assessed the reliability of hematocrit during rest and stress. Hematocrit was measured in two sessions during rest and in response to mental, cold and exercise stress in 84 healthy men and women. The stress tasks consistently elicited increases in hematocrit. Absolute levels of hematocrit were highly reliable between testing sessions. Changes in hematocrit with exercise stress were reliable whereas changes associated with mental and cold stress were not reliable between sessions. The findings indicate that hemoconcentration during brief mental and physical stress is more reliable for absolute levels than change scores. The reliability of stress-induced hemoconcentration may be improved by more provocative challenges and repeated sampling during stress.

AB - Hematocrit has been implicated in the triggering of cardiovascular events and the development of cardiovascular disease. Studies have demonstrated the reliability of hematocrit at rest, however, data are lacking about hematocrit during repeated acute stress exposures. The current study assessed the reliability of hematocrit during rest and stress. Hematocrit was measured in two sessions during rest and in response to mental, cold and exercise stress in 84 healthy men and women. The stress tasks consistently elicited increases in hematocrit. Absolute levels of hematocrit were highly reliable between testing sessions. Changes in hematocrit with exercise stress were reliable whereas changes associated with mental and cold stress were not reliable between sessions. The findings indicate that hemoconcentration during brief mental and physical stress is more reliable for absolute levels than change scores. The reliability of stress-induced hemoconcentration may be improved by more provocative challenges and repeated sampling during stress.

KW - stress

KW - reliability

KW - Hematocrit

KW - hemoconcentration

U2 - 10.1016/j.biopsycho.2007.09.005

DO - 10.1016/j.biopsycho.2007.09.005

M3 - Article

C2 - 17950518

VL - 77

SP - 63

EP - 68

JO - Biological Psychology

JF - Biological Psychology

SN - 0301-0511

IS - 1

ER -