Lookup NU author(s): Dr Sarah Charman,
Dr Bilal Bawamia,
Dr Murugu Veerasamy,
Professor Michael Trenell,
Dr Djordje Jakovljevic,
Dr Vijay Kunadian
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Introduction: A wide variety of exercise regimes produce significant reductions in coronary artery disease (CAD) risk and modulate the pathogenesis of CAD. Given the ongoing burden of cardiovascular disease and an aging population, physical activity (PA) in patients with CAD needs to be emphasized in addition to the use of advanced therapeutic and pharmacological interventions in their management. It is not known whether PA levels differ among older patients following percutaneous coronary intervention (PCI) for stable angina (SA) vs. acute coronary syndrome (ACS) consisting of ST-segment elevation myocardial infarction (STEMI) and non STEMI (NSTEMI).Hypothesis: To determine differences in the distribution of time spent in acceleration categories reflecting sedentary behaviour and PA in older patients (≥75 years) following PCI.Methods: We evaluated sedentary behaviour and PA amongst patients following PCI for SA (n=20), STEMI (n=20) and NSTEMI (n=18) upon discharge from a tertiary centre over a 7-day period using wrist-worn triaxial accelerometers (GENEActiv, Activinsights Ltd, United Kingdom).Results: Mean ± Standard deviation age was 79±4 years (31% female). STEMI and NSTEMI patients spent more time in the lowest acceleration category (0-40mg) than SA patients (1298±59 and 1305±66 vs. 1240±92 minutes/day, p<0.05). STEMI and NSTEMI patients spent less time than SA patients in the 40-80mg acceleration category (95±35 and 94±41 vs. 132±50 minutes/day, p<0.05). These trends continued for acceleration categories 80-120mg (p<0.05) and 120-160mg (p<0.05) but only between SA and NSTEMI patients. SA patients spent more time than NSTEMI patients in the 1 (15±18 vs. 6±9 minutes/day, p<0.05) and 5 (6±10 and 1±3 minutes/day, p<0.05) minute moderate-vigorous intensity PA bouts (≥100mg category). For the higher acceleration categories (≥160 mg), no differences between the groups were observed.Conclusions: Patients presenting with ACS and undergoing PCI spent more time in the low acceleration category reflecting sedentary behaviour and sleep compared with SA patients. Following PCI for ACS, strategies may need to be put in place to ensure that ACS patients achieve the mid category acceleration.
Author(s): Denton SJ, vanHees VT, Bawamia B, Veerasamy M, Quinn L, Dunford JR, Trenell MI, Jakovljevic DG, Kunadian V
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: American Heart Association's 2014 Scientific Sessions and Resuscitation Science Symposium
Year of Conference: 2014
Publisher: American Heart Association , Inc.
Series Title: American Heart Association