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Träfflista för sökning "WFRF:(Tamai M) srt2:(2000-2004);lar1:(kth)"

Search: WFRF:(Tamai M) > (2000-2004) > Royal Institute of Technology

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1.
  • Tanaka, H, et al. (author)
  • Blood pressure and cardiovascular autonomic function in healthy children and adolescents
  • 2000
  • In: Journal of Pediatrics. - : Elsevier BV. - 0022-3476 .- 1097-6833. ; 137:1, s. 63-67
  • Journal article (peer-reviewed)abstract
    • Objectives: To investigate the relationship between blood pressure levels and cardiovascular autonomic function in adolescents and preadolescents. Study design: We measured variability of beat-to-beat arterial pressure and R-R intervals using power spectral analysis in 56 adolescents (aged 13-16 16 years, mean age, 9.0 +/- 1.4 years) and 71 preadolescents (6-12 years, mean age, 13.5 +/- 1.1 years) in the supine and standing positions. Results: Adolescents had higher levels of systolic arterial pressure and lower high-frequency power of RR intervals than preadolescents. Correlation between the basal level of arterial pressure and autonomic function rn as observed in adolescents but not in preadolescents. Tn adolescents, multivariate analysis indicated that tho basal level of arterial pressure was inversely related with the high-frequency power of RR intervals and positively with the ratio of low-frequency and high-frequency pow er. No significant relation was found in preadolescents. During standing, adolescents had a more marked increase in diastolic arterial pressure, heart rate, low frequency of R-R intervals, and low frequency of arterial pressure compared with those of preadolescents, Changes in diastolic pressure showed a significant negative correlation with changes in high frequency of R-R intervals. Conclusion: Cardiovascular autonomic function plays an important role in increasing blood pressure levels associated with increased modulation of vagal tone of the heart after puberty but does not in the preadolescent.
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2.
  • Tanaka, H., et al. (author)
  • Evidence of decreased sympathetic function in children with psychosomatic symptoms
  • 2002
  • In: Clinical Autonomic Research. - : Springer Science and Business Media LLC. - 0959-9851 .- 1619-1560. ; 12:6, s. 477-482
  • Journal article (peer-reviewed)abstract
    • We investigated cardiovascular autonomic function using power spectral analysis of heart rate variation and beat-to-beat finger arterial pressure at rest and while standing and correlated these findings with self-reported psychosomatic and psychosocial symptoms in 122 schoolchildren. Children with three or more psychosomatic and psychosocial symptoms (somatizers) were found to have significantly lower blood pressure than children without symptoms. Somatizers had the more decreased spectral power of the low frequency (LF) band of arterial pressure and RR intervals in the supine position. The high frequency (HF) power did not differ between the two groups. Somatizers showed a more marked reduction in systolic arterial pressure at the onset of standing than did subjects without symptoms but somatizers showed an identical response in systolic arterial pressure when compared to subjects without symptoms during the later stage of standing. The increases in the LF band of arterial pressure and LF/HF of RR intervals during standing were higher in somatizers. These results suggest that somatizers have decreased sympathetic modulation. We conclude that psychosomatic and psychosocial symptoms in children might be associated with low blood pressure and decreased sympathetic modulation.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Tanaka, H. (2)
Borres, M. (2)
Thulesius, Olav (2)
Tamai, H. (2)
Lindblad, LE (1)
Lindblad, L E (1)
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Ericson, Mats O (1)
Ericson, MO (1)
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University
Linköping University (2)
Language
English (2)

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