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Variant autonomic regulation during active standing in Swedish and Japanese junior high school children
Department of Pediatrics, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka, Japan.
Department of Pediatrics, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka, Japan.
Linköping University, Department of Medicine and Health Sciences, Clinical Physiology . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart Centre, Department of Clinical Physiology.
Linköping University, Department of Clinical and Experimental Medicine, Pediatrics . Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre of Paediatrics and Gynecology and Obstetrics, Department of Paediatrics in Linköping.
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2008 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 28, no 3, 174-181 p.Article in journal (Refereed) Published
Abstract [en]

The present investigation is about cardiovascular responses and relevant autonomic function in Swedish and Japanese pubertal children on active standing using non-invasive continuous beat-to-beat finger arterial pressure (FAP) monitoring and power spectral analysis. Examined were 54 Swedish and 57 Japanese children (13-15 years). FAP and heart rate (HR) was continuously recorded in the supine position and during standing. Supine FAP was significantly higher in Swedish compared with Japanese children (121/62 versus 103/53 mmHg, P < 0.001). Swedish children showed a higher increase in arterial pressure and HR upon uprising, resulting in a higher vasoconstrictor index (5.04 ± 0.22 versus 2.31 ± 0.11 mmHgs-1, P < 0.001, respectively). There were also higher increases in arterial pressure and HR in the following steady state period (1-7min) between the two groups. These differences were also found after adjustment of body weight and height. Frequency domain analysis of HR and arterial pressure variability indicated significantly higher low/high frequency power of HR and low frequency power of arterial pressure. These results suggest that Swedish pubertal children have higher basal blood pressure and enhanced cardiovascular sympathetic responses. These differences in the two cohorts might be caused by genetic factors. © 2008 The Authors Journal compilation © 2008 Scandinavian Society of Clinical Physiology and Nuclear Medicine.

Place, publisher, year, edition, pages
2008. Vol. 28, no 3, 174-181 p.
Keyword [en]
Baroreflex sensitivity, Blood pressure control, Finger blood pressure, Japanese children, Orthostatic imbalance, Racial difference, Swedish children
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-46233DOI: 10.1111/j.1475-097X.2008.00790.xOAI: oai:DiVA.org:liu-46233DiVA: diva2:267129
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Clinical Physiology Faculty of Health SciencesDepartment of Clinical PhysiologyPediatrics Department of Paediatrics in Linköping
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Clinical Physiology and Functional Imaging
Natural Sciences

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