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KMID : 0361420120360010133
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Journal of Korean Academy of Rehabilitation Medicine
2012 Volume.36 No. 1 p.133 ~ p.140
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The Effect of Power-walking in Phase 2 Cardiac Rehabilitation Program
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Kim Chul
Kim Byung-Ok
Lim Kil-Byung
Kim Young-Joo
Park Yong-Bum
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Abstract
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Objective: To evaluate the eff ects of power walking (PW) training on a treadmill in patients with coronary heart disease (CHD) and to compare the cardiovascular eff ects of PW with usual walking (UW).
Method: Patients were recruited as participants in phase 2 cardiac rehabilitation program after receiving percutaneous coronary intervention (PCI) due to acute coronary syndrome from our hospital. Th e participants were divided into the PW group (n=16) and UW group (n=18). All participants received graded exercise test (GXT) and signifi cant diff erence in maximal oxygen consumption (VO2Max) was not observed between the groups. Aerobic exercise training on treadmill was given for 50 minutes per session, three times a week, for six weeks. Physiological and hematological parameters were tested before and 6 weeks after the cardiac rehabilitation program. Exercise duration, VO2Max, heart rate, blood pressure, and rate pressure product were evaluated through graded exercise test. Hematological measurements included serum lipid profi le, and high-sensitivity C reactive protein (hs-CRP).
Results: Th ere were no signifi cant diff erences in resting heart rate, maximal heart rate, resting systolic and diastolic blood pressures, lipid profi le, hs-CRP, VO2Max, and RPP between the PW group and UW group. However, after 6 weeks of the intervention, VO2Max in the PW group (36.03±5.69 ml/kg/min) was signifi cantly higher than that in the UW group (29.73±5.63 ml/kg/min) (p<0.05).
Conclusion: After six weeks of phase 2 cardiac rehabilitation program, the PW group showed significant improvement in VO2Max than the UW group. Thus, it will beneficial to recommend power walking in cardiac rehabilitation program.
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KEYWORD
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Cardiovascular disease, Exercise, Walking, Rehabilitation
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