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Effects of Exercise Training in Patients With Abdominal Aortic Aneurysm PRELIMINARY RESULTS FROM A RANDOMIZED TRIAL
Effects of Exercise Training in Patients With Abdominal Aortic Aneurysm PRELIMINARY RESULTS FROM A RANDOMIZED TRIAL JOURNAL OF CARDIOPULMONARY REHABILITATION AND PREVENTION Myers, J. N., White, J. J., Narasimhan, B., Dalman, R. L. 2010; 30 (6): 374-383Abstract
No effective medical therapy exists for early abdominal aortic aneurysm (AAA) disease. Lower extremity exercise improves aortic hemodynamics and reduces inflammation, but the safety and efficacy of exercise training in AAA disease is unknown. As an interim analysis of our prospective, randomized, longitudinal trial of exercise for AAA suppression, we investigated whether subjects with early disease could safely achieve target metabolic and hemodynamic goals.One hundred eight participants were randomized to exercise training (EX) or usual care (UC). EX subjects participated in a combination of in-house and home exercise training, with efforts directed toward moderate daily exercise participation. Comparisons were made between EX and UC subjects who completed 1 year of follow-up (n = 26 and 31, respectively, mean age 72 ± 8 years). EX and UC groups were compared for safety, cardiopulmonary exercise test responses, weekly energy expenditure, and biometric indices.No paradoxical increase in AAA growth rate or adverse clinical events occurred as a consequence of exercise training. EX participants expended an average of 2269 ± 1207 kcal/wk and increased exercise capacity (42% increase in treadmill time, 24% increase in estimated metabolic equivalents, P = .01 and .08 between groups, respectively). EX participants demonstrated a significant reduction in C-reactive protein and tended to reduce waist circumference and waist-to-hip ratio (P = .06 and .07, respectively).Preliminary analyses suggest that exercise training is well tolerated and sustainable in small AAA subjects over 1 year. Despite age and comorbidities, exercising AAA subjects achieve meaningful exercise targets and significantly modify activity-dependent variables.
View details for DOI 10.1097/HCR.0b013e3181ebf2db
View details for Web of Science ID 000284060500003
View details for PubMedID 20724934