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CMAJ : Canadian Medical Association Journal logoLink to CMAJ : Canadian Medical Association Journal
. 1987 Jan 15;136(2):142–147.

L'entraînement physique après un remplacement valvulaire mitral.

Physical fitness improves after mitral valve replacement

C Habel-Verge, F Landry, D Desaulniers, G R Dagenais, A Moisan, L Côté, N M Robitaille
PMCID: PMC1491990  PMID: 3791103

Abstract

To determine whether women with mitral valve prostheses can improve their physical fitness without suffering cardiac dysfunction or hemolysis, 10 women (mean age 47 years) who had undergone mitral valve replacement (an average of 3.7 years earlier) were enrolled in an 8-week program of exercise on a bicycle ergometer. They exercised three times a week, starting at 60% and increasing to 80% of their maximal heart rate achieved during stress testing. Nine other women with similar clinical characteristics (mean age 48 years) constituted a control group. Exercise produced significant cardiovascular improvement, as evidenced by a mean decrease of 12 beats/min in the heart rate at steady-state work load (p less than or equal to 0.01), a mean increase of 121 kpm in the maximal tolerated work load (p less than or equal to 0.01), and a mean increase of 4 ml/kg X min-1 in the peak oxygen consumption (p less than or equal to 0.01). There was a small increase in the mean plasma hemoglobin level (15 to 29 mg/dl) and the mean reticulocyte count (1.8% to 2.4%) after the program (p less than or equal to 0.05). There were no significant changes in any of the variables studied in the control group. There were no changes in the clinical, electrocardiographic or echocardiographic findings in the experimental group. Although slightly increased hemolysis may occur, women with mitral valve replacement can improve their cardiovascular condition by exercising.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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