Activity monitoring reflects cardiovascular and metabolic variations in COPD patients across GOLD stages II to IV

dc.contributor.author	Κορτιανού, Ελένη Αντ.	el
dc.contributor.author	Λούβαρης, Ζαφείρης	el
dc.contributor.author	Βασιλοπούλου, Μαρούλα	el
dc.contributor.author	Νάσσης, Γεώργιος	el
dc.contributor.author	Καλτσάκας, Γεώργιος Σ.	el
dc.date.accessioned	2015-05-17T09:57:53Z
dc.date.available	2015-05-17T09:57:53Z
dc.date.issued	2015-05-17
dc.identifier.uri	http://hdl.handle.net/11400/10580
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.sciencedirect.com/science/article/pii/S1569904813002851	el
dc.subject	Cardiac output
dc.subject	Indirect calorimetry
dc.subject	Walking (Sports)
dc.subject	physical activity
dc.subject	COPD
dc.subject	Activity monitoring
dc.subject	Παρακολούθηση της δραστηριότητας
dc.subject	Καρδιακή παροχή
dc.subject	Εμμεση θερμιδομετρία
dc.subject	Περίπατος
dc.subject	Σωματική δραστηριότητα
dc.title	Activity monitoring reflects cardiovascular and metabolic variations in COPD patients across GOLD stages II to IV	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Human physiology
heal.classification	Ιατρική
heal.classification	Ανθρώπινη φυσιολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85062884
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ανθρώπινη φυσιολογία
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85020184
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh88004418
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85144901
heal.keywordURI	http://lod.nal.usda.gov/37116
heal.contributorName	Κουλούρης, Νικόλαος Γ.	el
heal.contributorName	Βογιατζής, Ιωάννης	el
heal.identifier.secondary	doi:10.1016/j.resp.2013.08.014
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας/Σχολή επαγγελμάτων Υγείας και Πρόνοιας/Τμήμα Φυσικοθεραπείας	el
heal.publicationDate	2013-12
heal.bibliographicCitation	Kortianou , E. A., Louvaris, Z., Vasilopoulou, M., Nasis, I., Kaltsakas, G., et.al. (2013). Activity monitoring reflects cardiovascular and metabolic variations in COPD patients across GOLD stages II to IV. "Respiratory Physiology & Neurobiology", 189(3), December 2013. pp. 513-520. Available from: http://www.sciencedirect.com/science/article/pii/S1569904813002851. [Accessed 16/08/2013]	en
heal.abstract	We investigated whether activity monitoring reliably reflects variations in oxygen transport and utilization during walking in COPD patients. Forty-two patients (14 in each GOLD stage II, III and IV) performed an incremental treadmill protocol to the limit of tolerance. Breath-by-breath gas exchange, central hemodynamic variables and activity monitoring were simultaneously recorded. Physiological variables and accelerometer outputs rose linearly with walking speeds. Strong correlations (r[interquartile range, IQR]) were found between treadmill walking intensity (WI: range 0.8–2.0 m s−2) and oxygen consumption (0.95 [IQR 0.87–0.97]), (range 7.6–15.5 ml kg−1 min−1); minute ventilation (0.95 [IQR 0.86–0.98]), (range 20–37 l min−1); cardiac output (0.89 [IQR 0.73–0.94]), (range 6.8–11.5 l min−1) and arteriovenous oxygen concentration difference (0.84 [IQR 0.76–0.90]), (range 7.7–12.1 ml O2 100 ml−1). Correlations between WI and gas exchange or central hemodynamic parameters were not different across GOLD stages. In conclusion, central hemodynamic, respiratory and muscle metabolic variations during incremental treadmill exercise are tightly associated to changes in walking intensity as recorded by accelerometry across GOLD stages II to IV. Interestingly, the magnitude of these associations is not different across GOLD stages.	en
heal.journalName	Respiratory Physiology & Neurobiology	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true