EFFECT OF CONCURRENT TRAINING ON LEFT VENTRICULAR CONTRACTILE FUNCTION IN PATIENTS WITH CORONARY ARTERY DISEASE

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NAGHIBI S.; KORDI M.R.; MALEKI M.J.

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Journal: Journal of Medical Council of Iran Year:2008 | Volume:25 | Issue:4 Page(s): 474-481

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Title

EFFECT OF CONCURRENT TRAINING ON LEFT VENTRICULAR CONTRACTILE FUNCTION IN PATIENTS WITH CORONARY ARTERY DISEASE

Author(s)

NAGHIBI S. | KORDI M.R. | MALEKI M.J. | Issue Writer Certificate

Keywords

BRAIN ABSCESSQ3

SURGERY OUTCOMEQ3

MORTALITYQ2

MORBIDITYQ3

CONGENITAL HEART DISEASEQ3

Abstract

Background: Exercise training has assumed a major role in cardiac rehabilitation, mostly because of its positive effects on myocardial perfusion in patients with coronary artery disease. The mechanism involved in mediating this key effect has long been debated: both improvement of peripheral vascular system and myocardial contractile function have been suggested as potential adaptations. The purpose of this study was to determine the effect of concurrent training on left ventricular contractile function in patient with coronary artery disease.Methods: Twenty four patients with coronary artery disease (mean age of 60±6 yrs; mean weight 74±12 kg; and mean body mass index 26±4) were randomly divided to two subgroups, experimental (n=12) and control (n=12) groups. The experimental group participated in 3 months concurrent training, 3 times/week for 60 to 80 minutes at 70% to 85% of maximum heart rate (MHR) and 40% to 60% of one repetition maximum (IRM). Investigation variables were assessed at baseline and at the end of the protocol by the impedance cardiography method.Findings: A significant training effect was documented by a decrease in heart rate and blood pressure at rest. Acceleration index (ACI) increased from 0.49±0.14 to 0.78±0.24 sec2 (P<0.05). Velocity index (VI) increased from 36±9 to 47±8 msec (P<0.05). Left cardiac work (LCW) increased from 5±1 to 7±2 kg m (P<0.05). Left cardiac work index (LCWI) increased from 3±1 to 4±1 kgm/m2 (P<0.05). Pre-ejection period (PEP) decreased from 91±12 to 68±12 msec (P<0.05). Systolic time ratio (STR) decreased from 28±5 to 21±6 (P<0.05). The left ventricular ejection time (LVET) did not change.Conclusion: We conclude that concurrent training may improve myocardial contractile function in some patients with CAD.

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APA: Copy

NAGHIBI, S., KORDI, M.R., & MALEKI, M.J.. (2008). EFFECT OF CONCURRENT TRAINING ON LEFT VENTRICULAR CONTRACTILE FUNCTION IN PATIENTS WITH CORONARY ARTERY DISEASE. JOURNAL OF MEDICAL COUNCIL OF I.R.I., 25(4), 474-481. SID. https://sid.ir/paper/41020/en

Vancouver: Copy

NAGHIBI S., KORDI M.R., MALEKI M.J.. EFFECT OF CONCURRENT TRAINING ON LEFT VENTRICULAR CONTRACTILE FUNCTION IN PATIENTS WITH CORONARY ARTERY DISEASE. JOURNAL OF MEDICAL COUNCIL OF I.R.I.[Internet]. 2008;25(4):474-481. Available from: https://sid.ir/paper/41020/en

IEEE: Copy

S. NAGHIBI, M.R. KORDI, and M.J. MALEKI, “EFFECT OF CONCURRENT TRAINING ON LEFT VENTRICULAR CONTRACTILE FUNCTION IN PATIENTS WITH CORONARY ARTERY DISEASE,” JOURNAL OF MEDICAL COUNCIL OF I.R.I., vol. 25, no. 4, pp. 474–481, 2008, [Online]. Available: https://sid.ir/paper/41020/en

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