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Oxygen uptake kinetics in older patients receiving postacute cardiac rehabilitation: effects of low-intensity aerobic training.
MedLine Citation:
PMID:  20736817     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
OBJECTIVE: : Older patients who receive postacute cardiac rehabilitation improve their physical performance in terms of distance walked at the 6-min walk test. However, the slower and more complicated recovery, along with age-related chronic comorbidities, remarkably limits the intensity of aerobic training, which actually represents the core of cardiac rehabilitation. The aim of this study was to verify whether postacute cardiac rehabilitation also improves the cardiovascular adjustment to exercise, despite low-intensity aerobic training.
DESIGN: : Using a portable gas analyzer, we assessed the O2 uptake kinetics during the 6-min walk test at the beginning and at the end of the rehabilitation in 84 patients aged 65 yrs and above.
RESULTS: : All patients significantly improved the distance walked at the 6-min walk test. The comparison of the time constants of O2 uptake kinetics showed that 40% of patients also significantly improved the hemodynamic response to exercise. This improvement was independently associated with the report of sedentary lifestyle or low-intensity physical activity in the year before surgery and with longer time constants before physical training.
CONCLUSIONS: : Low-intensity aerobic training improves the cardiovascular adjustment to exercise selectively in patients with physical deconditioning. This confirms the notion that elderly frail patients are those who benefit most from cardiac rehabilitation.
Authors:
Raffaele Molino-Lova; Federica Vannetti; Guido Pasquini; Anita Paperini; Renato Zipoli; Paola Polcaro; Mario Petrilli; Francesca Cecchi; Claudio Macchi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of physical medicine & rehabilitation / Association of Academic Physiatrists     Volume:  89     ISSN:  1537-7385     ISO Abbreviation:  Am J Phys Med Rehabil     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2011-03-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8803677     Medline TA:  Am J Phys Med Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  953-60     Citation Subset:  AIM; IM    
Affiliation:
Affiliations: From the Cardiac Rehabilitation Unit (RM-L, FV, GP, AP, RZ, PP, FC, CM) and Cardiorespiratory Rehabilitation Unit (MP), Don Gnocchi Foundation, Massa, Italy.
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