biological rhythm in 1/f fluctuations of heart rate in asthmatic children

Clicks: 246
ID: 189991
2004
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Popular

Ranked #72 of 108 articles by views in current drug discovery technologies

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Background: The 1/f fluctuations of heart rate (HR) have been used as a novel index of autonomic function from a chronobiological viewpoint. The autonomic function of asthma sufferers differs from that of normal children. Therefore, we investigated whether there are 1/f fluctuations in asthmatic children during an asthma attack and whether asthmatic children have a different rhythm of 1/f fluctuations in the 24 h after an asthma attack. Methods: We recorded 24 h electrocardiographs of eight asthmatic children (three females, five males; median age 8.5 years; range 7-11 years) at the time of an asthma attack and during a non-attack period and examined the 1/fβ fluctuations on HR and its rhythm over a 24 h period using the MemCalc system (GMS, Tokyo, Japan). The 1/f fluctuations on HR were calculated by the expression on a log10(frequency)–log10(power density) scale of the HR variability. Results: The values of β (1/fβ fluctuations of HR) for asthma attack and non-attack periods were 0.9 ± 0.07 and 0.96 ± 0.08, respectively (t = 1.59; P = 0.13). During the asthma attack period, the rhythm was median 7.9 h (range 6.1–11.1 h), compared with 22.7 h (range 1 2.2–36.4 h) during the non-attack period (t = 0; P < 0.001). Conclusion: During an asthma attack, the rhythm of 1/f fluctuations is ultradian (cycle length under 20 h), compared with various rhythms during a non-attack period. In future, we will clarify the relevance of the ultradian rhythm of 1/f fluctuations over a 24 h period and the biological life-support system at a point of time of an asthma attack.
Reference Key
kazuma2004allergologybiological Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Norio Kazuma, Maki Nozaki, Erina Nakamura, Ikumi Matsuoka, Tomoko Otani
Are you one of these authors? Claim your profile
Journal current drug discovery technologies
Year 2004
DOI
10.1111/j.1440-1592.2004.00343.x
URL
http://www.sciencedirect.com/science/article/pii/S1323893015311266
Keywords
heart rate variability biological rhythm allergy

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.