Biology of Sport
pISSN 0860-021X    eISSN 2083-1862
Archival Issues
Volume 33, 2016
Volume 32, 2015
Volume 31, 2014
Volume 30, 2013
Volume 29, 2012
Volume 28, 2011
Volume 27, 2010
Volume 26, 2009
Volume 25, 2008
Volume 24, 2007
Volume 23, 2006
Volume 22, 2005
Volume 21, 2004
Volume 20, 2003
Archival Issues 1984-1998
Search
Newsletter
Information for Authors
Special Information
 » 
Journal Abstract
 
HAEMODYNAMIC RESPONSE DURING EXERCISE TESTING IN PATIENTS WITH CORONARY ARTERY DISEASE UNDERGOING A CARDIAC REHABILITATION PROGRAMME
J. Siebert, D. Zielińska, B. Trzeciak, S. Bakuła
Biol Sport 2011; 28(3):189-193
ICID: 959285
Article type: Original article
IC™ Value: 10.06
Abstract provided by Publisher
 
Haemodynamic monitoring during exercise testing is seldom used during cardiac rehabilitation. The aim was to evaluate haemodynamic changes using the cardiac impedance method during exercise testing in patients after percutaneous coronary interventions and coronary artery bypass grafting during cardiac rehabilitation. Thirty (25 M; 5 F) patients were included in the programme. The group was divided according to ejection fraction (EF): low – below 50%, normal – equal to or above 50%. The exercise test was performed simultaneously with a four-electrode impedance cardiogram before and after rehabilitation. ECG, blood pressure, thoracic impedance, first derivative dz/dt, stroke volume (SV) and cardiac output were recorded. Contractility index (Heather index – HI) and vascular peripheral resistance were calculated. The pattern of haemodynamic changes was normal in 24 patients. The deflection points for HI and SV trend patterns were observed among patients with low EF. The contractility index decreased 90 s before maximal exercise and after the next 30-60 s a deflection point was observed in SV curve trends. In 24 patients with normal EF the contractility index trends did not decrease and SV trends increased until the end of exercise or a deflection point was not noted. The deflection points of the contractility index and SV curves were observed before the clinical indications for exercise test termination appeared in patients with a low ejection fraction. Impedance cardiography may indicate the threshold of the workload during real-time exercise testing.

ICID 959285

DOI 10.5604/959285
 
FULL TEXT 372 KB
 
FULL TEXT


Related articles
  • in IndexCopernicus™
         impedance cardiography [5 related records]
         cardiac rehabilitation [5 related records]
         Coronary Artery Disease [92 related records]


  •  

    Copyright © Biology of Sport  2017
    Page created by Index Copernicus Ltd. All Rights reserved.