Resumen

GARCIA-MUNOZ, Ana I  y  PEREIRA, Javier E. Exercise tolerance in post-surgical cardiovascular patients after intervention with cardiac rehabilitation program phase II. Rev. Colomb. Cardiol. [online]. 2014, vol.21, n.6, pp.409-413. ISSN 0120-5633.  https://doi.org/10.1016/j.rccar.2014.05.007.

Introduction and objectives:Cardiovascular disease is the leading cause of death and medical expenses due to its consequences. In secondary prevention, cardiac rehabilitation programs improve functional status, quality of life and overall survival. Methods and materials: An observational, descriptive and prospective study was performed. Thirty one subjects (19 male, 14 female), mean age 64 ± 11 years. The 6-minute walk test served to estimate the indirect maximal oxygen consumption (VO_2max). We measured the heart rate and double product was estimated as hemodynamic indicators. The tests were performed before and after 12 training sessions at between 50 and 70% of maximum heart rate, for 60 min, 3 times a week, during one month. Results: After the intervention we observed higher values of VO₂ (9.6 ± 2.0 mL.kg^-1.min^-1 vs. 11.09 ± 1.9 mL.kg^-1.min^-1; p = 0.002) and a longer distance achieved in the walking test (244.5 ± 80.1 m vs. 303.2 ± 78.1 m; P = .002). There were no differences in hemodynamic indicators (P > .05). Conclusions: Cardiac rehabilitation program reported an improvement in exercise tolerance in post-surgical cardiovascular patients in a 14% of the cases. It did not show a variation in hemodynamic function.

Palabras clave : Cardiovascular disease; Rehabilitation; Six-minute walking test.

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