{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,8]],"date-time":"2025-12-08T22:10:12Z","timestamp":1765231812603},"reference-count":21,"publisher":"World Scientific Pub Co Pte Lt","issue":"02","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Adv. Adapt. Data Anal."],"published-print":{"date-parts":[[2009,4]]},"abstract":"<jats:p> To investigate whether the first intrinsic mode function, obtained from Hilbert\u2013Huang transform (HHT), of heart rate variability is respiratory related. Electrocardiogram and chest circumference signals were recorded from 10 healthy subjects at supine rest. The HHT was applied to both R-R interval and chest circumference signals to figure out their first intrinsic mode functions (C1<jats:sub>RR<\/jats:sub> and C1<jats:sub>RESP<\/jats:sub>, respectively) from which the instantaneous amplitude, phase, and frequency were calculated. Although the instantaneous amplitudes and frequencies of C1<jats:sub>RR<\/jats:sub> and C1<jats:sub>RESP<\/jats:sub> were variable, linear regression analysis indicated a phase lock between C1<jats:sub>RR<\/jats:sub> and C1<jats:sub>RESP<\/jats:sub>. Intake of 500 ml water significantly elevated the amplitude ratio of C1<jats:sub>RR<\/jats:sub> to C1<jats:sub>RESP<\/jats:sub>; however, the phase difference of C1<jats:sub>RR<\/jats:sub> to C1<jats:sub>RESP<\/jats:sub> was still unchanged. The data indicate that the first intrinsic mode function of heart rate variability is respiratory related and may be equivalent to respiratory sinus arrhythmia. As compared to fast Fourier transform, HHT of respiratory sinus arrhythmia provides a comparative spatial measurement with a much higher temporal resolution. <\/jats:p>","DOI":"10.1142\/s1793536909000114","type":"journal-article","created":{"date-parts":[[2009,4,8]],"date-time":"2009-04-08T08:55:25Z","timestamp":1239180925000},"page":"295-307","source":"Crossref","is-referenced-by-count":9,"title":["QUANTIFICATION OF RESPIRATORY SINUS ARRHYTHMIA USING HILBERT\u2013HUANG TRANSFORM"],"prefix":"10.1142","volume":"01","author":[{"given":"TERRY B. J.","family":"KUO","sequence":"first","affiliation":[{"name":"Institute of Brain Science, National Yang-Ming University, No. 155, Sec. 2, Linong Street, Taipei 11221, Taiwan"},{"name":"Department of Education and Research, Taipei City Hospital, 145 Zheng Zhou Road, Taipei, Taiwan"}]},{"given":"CHERYL C. H.","family":"YANG","sequence":"additional","affiliation":[{"name":"Institute of Brain Science, Sleep Research Center, National Yang-Ming University, No. 155, Sec. 2, Linong Street, Taipei 11221, Taiwan"}]},{"given":"NORDEN E.","family":"HUANG","sequence":"additional","affiliation":[{"name":"Research Center for Adaptive Data Analysis, National Central University, No. 300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan"}]}],"member":"219","published-online":{"date-parts":[[2011,11,20]]},"reference":[{"key":"rf1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.125.2.683"},{"key":"rf2","doi-asserted-by":"publisher","DOI":"10.1152\/jappl.1975.39.5.801"},{"key":"rf3","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.84.2.482"},{"key":"rf4","doi-asserted-by":"publisher","DOI":"10.1126\/science.6166045"},{"key":"rf5","first-page":"H142","volume":"256","author":"Berger R. D.","journal-title":"Am. J. Physiol."},{"key":"rf6","first-page":"H153","volume":"256","author":"Saul J. 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Physiol."}],"container-title":["Advances in Adaptive Data Analysis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S1793536909000114","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T20:28:29Z","timestamp":1565123309000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S1793536909000114"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,4]]},"references-count":21,"journal-issue":{"issue":"02","published-online":{"date-parts":[[2011,11,20]]},"published-print":{"date-parts":[[2009,4]]}},"alternative-id":["10.1142\/S1793536909000114"],"URL":"https:\/\/doi.org\/10.1142\/s1793536909000114","relation":{},"ISSN":["1793-5369","1793-7175"],"issn-type":[{"value":"1793-5369","type":"print"},{"value":"1793-7175","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,4]]}}}