Daily walking performance as an independent predictor of advanced heart failure

Purpose The purpose of this study was to use an accelerometer to measure daily walking performance in patients with chronic heart failure (CHF) to investigate if this parameter is a determinant of New York Heart Association class and indicative of maximal and functional exercise capacity. Methods Fi...

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Bibliographic Details
Published in:The American heart journal 2009-02, Vol.157 (2), p.292-298
Main Authors: Jehn, Melissa, MSc, Schmidt-Trucksäss, Arno, MD, Schuster, Tibor, MSc, Weis, Michael, MD, PhD, Hanssen, Henner, MD, Halle, Martin, MD, Koehler, Friedrich, MD
Format: Article
Language:English
Subjects:
Cardiovascular
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Summary:Purpose The purpose of this study was to use an accelerometer to measure daily walking performance in patients with chronic heart failure (CHF) to investigate if this parameter is a determinant of New York Heart Association class and indicative of maximal and functional exercise capacity. Methods Fifty patients with CHF were instructed to wear an accelerometer for 7 consecutive days while going about their daily business. Maximal and functional exercise capacity was assessed by cardiopulmonary (VO2peak ) and 6-minute walk testing, respectively. Results Patients in New York Heart Association I, II, and III reached an average total walking time (TWT) of 160.6 ± 35.8 minutes, 133.9 ± 59.0 minutes, and 76.1 ± 22.5 minutes per day of which 19%, 19%, and 9% where spent in the fast walking mode (>83 m/minute), respectively. The TWT correlated strongly with VO2peak ( r = 0.72; P
ISSN:0002-8703
1097-6744
DOI:10.1016/j.ahj.2008.10.006