Abstract:
:This report evaluated (a) the temporal stability of hemodynamic responses to three tasks using impedance cardiography, and (b) the influence of aging on stress responses in a multi-ethnic pediatric sample. One hundred children 8 to 10 years old and 49 adolescents 15 to 17 years old were tested at study entry and on average 3 years later. Results showed that the composite task-induced changes in stroke volume (SV), cardiac output (CO), total peripheral resistance (TPR), and pre-ejection period (PEP) were moderately stable across 3 years (rs = .36 to .51), with children showing greater stability in task-induced CO change than did adolescents. However, the magnitude of the participant's stress responses changed over time, varied by task, age group, and gender. These results suggest that hemodynamic responses to stress change with aging during childhood and adolescence and that they can be measured reliably.
journal_name
Psychophysiologyjournal_title
Psychophysiologyauthors
Matthews KA,Salomon K,Kenyon K,Allen MTdoi
10.1111/1469-8986.3960826subject
Has Abstractpub_date
2002-11-01 00:00:00pages
826-34issue
6eissn
0048-5772issn
1540-5958pii
S0048577202011162journal_volume
39pub_type
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