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 (VO(2peak)) 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 VO(2peak) (r = 0.72; P <.001) and 6-minute walk testing distance (r = 0.68; P <.001). The TWT and time spent in fast walking mode were the strongest determinants in discriminating moderate CHF. CONCLUSION: Daily walking performance is a clear determinant of maximal and functional exercise capacities in patients with CHF. Walking intensity in particular is an independent predictor in discriminating patients with advanced heart failure. Monitoring of daily walking performance might aid in detecting disease progression and improve clinical outcome.
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 (VO(2peak)) 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 VO(2peak) (r = 0.72; P <.001) and 6-minute walk testing distance (r = 0.68; P <.001). The TWT and time spent in fast walking mode were the strongest determinants in discriminating moderate CHF. CONCLUSION: Daily walking performance is a clear determinant of maximal and functional exercise capacities in patients with CHF. Walking intensity in particular is an independent predictor in discriminating patients with advanced heart failure. Monitoring of daily walking performance might aid in detecting disease progression and improve clinical outcome.
Authors: Michael L Alosco; Mary Beth Spitznagel; Lindsay Miller; Naftali Raz; Ronald Cohen; Lawrence H Sweet; Lisa H Colbert; Richard Josephson; Donna Waechter; Joel Hughes; Jim Rosneck; John Gunstad Journal: Health Psychol Date: 2012-08-27 Impact factor: 4.267
Authors: Marcus Granegger; Thomas Schlöglhofer; Henrik Ober; Daniel Zimpfer; Heinrich Schima; Francesco Moscato Journal: Int J Artif Organs Date: 2016-02-23 Impact factor: 1.595
Authors: Djordje G Jakovljevic; Adam McDiarmid; Kate Hallsworth; Petar M Seferovic; Vladan M Ninkovic; Gareth Parry; Stephan Schueler; Michael I Trenell; Guy A MacGowan Journal: Am J Cardiol Date: 2014-04-18 Impact factor: 2.778
Authors: Scott L Hummel; John Herald; Craig Alpert; Kimberlee A Gretebeck; Wendy S Champoux; Donald R Dengel; Peter V Vaitkevicius; Neil B Alexander Journal: J Geriatr Cardiol Date: 2016-07 Impact factor: 3.327