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KMID : 0603820130190010070
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Journal of Experimental & Biomedical Science
2013 Volume.19 No. 1 p.70 ~ p.78
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The Effects of Beta-blocker and Aerobic Exercise on Heart Rate Recovery and Exercise Capacity after Maximal Exercise in Acute Coronary Syndrome Patients
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Cha Kyung-Hwa
Oh Jae-Keun
Kim Young-Joo
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Abstract
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This study was conducted to identify the effects of intake of beta-blocker and aerobic exercise on heart rate recovery (HRR) and exercise capacity after maximal exercise in acute coronary syndrome patients (ACS). Subjects were divided into 4 groups; Beta-blocker-Exercise group (n=10), Beta-blocker group (n=10), Exercise group (n=10), Control group (n=10). Symptom-limited grade exercise test were conducted on subjects pre- and post- 6 week study, to measure maximal heart rate, heart rate at 1 minute and 2 minutes at the recovery stage, maximal oxygen uptake and maximal exercise time. Study resulted in significant improvements in heart rate recovery for BB-Ex group (17.40 ± 5.58 bpm to 26.10 ± 6.66 bpm), maximal oxygen uptake for BB-Ex group (30.46 ± 8.63 to 36.33 ± 8.10) and Ex group (29.04 ± 4.93 to 34.31 ± 5.19), and total exercise time for BB-Ex group (906.30 ± 158.57 to 1018.50 ± 151.21), BB group (805.70 ± 182.94 to 897.50 ± 160.16) and Ex group (870.00 ± 145.63 to 961.90 ± 107.29). Therefore it showed the biggest improvement for heart rate recovery and exercise capacity in acute coronary syndrome patients when both Beta-blocker and aerobic exercise were in effect.
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KEYWORD
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Beta-blocker, Aerobic exercise, Heart rate recovery, Acute coronary syndrome, Percutaneous transluminal coronary angioplasty, Maximal oxygen uptake, Maximal exercise time
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