Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Cardiovascular and Perceived Exertion Response to Treadmill Running and Cycle Ergometer Exercise in Responder and Nonresponder Acute Coronary Syndrome Patients

심장재활에 참여한 급성 관상동맥증후군 환자에서 약물 반응과 운동 형태의 변화에 따른 심혈관과 운동자각도의 반응

  • Kim, Young-Joo (Heart Rehabilitation Clinic, Inje university Sanggye Paik Hospital) ;
  • Kim, Chul-Hyun (Department of Physiology, Eulji University School of Medicine)
  • 김영주 (인제대학교백병원) ;
  • 김철현 (을지대학교 의과대학 생리학교실)
  • Published : 2008.09.30
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Abstract

The purpose of this study is to investigate the effect of exercise mode and anti-hypertensive drug responding status on the cardiovascular response and perceived exertion in acute coronary syndrome (ACS) patients. Seventy-five patients who participated in six-week exercise rehabilitation therapy performed a treadmill running and a cycle ergometer exercise at intensities of 60%HRR and 85%HRR respectively. Systolic and diastolic blood pressure, mean arterial blood pressure (MAP), rate pressure production (RPP), and ratings of perceived exertion (RPE) were measured. The results of cardiovascular response by the different exercise modes with moderate and intensive intensity of anti-hypertensive drug responder and nonresponder ACS patients were following: First cycle ergometer exercise induced significantly higher SBP, DBP, MAP, RPP and MAP than treadmill running exercise at the intensities of 60%HRR and 85%HRR in both anti-hypertensive responder and nonresponder ACS patients (p<0.05). Secondly anti-hypertensive nonresponder ACS patients had significantly higher DBP and MAP that anti-hypertensive responder ACS patients at all the exercise modes (p<0.05). Finally there was no difference of RPP between anti-hypertensive responder and nomresponder ACS patients, although anti-hypertensive nonresponder ACS patients showed higher blood pressure and RPP than anti-hypertensive responder ACS patients. In conclusion, cycle ergometer induced increased cardiovascular response at same intensities of treadmill running exercise and anti-hypertensive nonresponder ACS patients had even more increased cardiovascular response than anti-hypertensive responder ACS patients with no difference in perceived exertion during exercise. These results suggested that cycle ergometer exercise should be greatly careful with the risk of higher blood pressure, especially for those who are patients with hypertensive blood pressure.

본 연구는 심장재활에 참여한 고혈압을 동반한 급성관상동맥질환자중 내과적인 약물로 조절되지 않은 고혈압 환자의 경우와 약물로 조절되는 정상 혈압 환자군에서 트레드밀 운동과 고정식 자전거 운동 수행시 강도별 혈압과 심근산소소비량, 자각지수에 대한 반응을 구명(究明)하고자 목적하였다. 이를 위해 6주간의 심장재활 프로그램에 참여한 심혈관질환 환자를 연구대상으로 약물에 대한 혈압이 조절되는 혈압약물반응군과 약물에 대한 혈압이 조절되지 혈압약물비반응군 환자를 동원하여, 트레드밀 운동부하검사를 실시하여 예비심박수를 구하였으며, 이를 근거로 중강도 운동강도(60%HRR)와 고강도 운동강도(85%HRR)의 심박수에서 트레드밀 운동과 고정식자전거 운동을 실시하였다. 혈압의 조절유무에 따라 강도별 트레드밀과 고정식자전거 운동 시에 나타난 심혈관반응의 결과는 다음과 같다. 첫째, 중강도(60%HRR)와 고강도(85%HRR)에서 운동형태(exercise mode)에 따른 혈압약물반응군과 혈압약물비반응군과의 심혈관 반응에 대한 결과 모든 운동강도에서 고정식자전거 운동이 트레드밀 운동보다 수축기혈압, 이완기혈압, 평균동맥혈압, 심근산소소비량, 운동자각도 모두 유의하게 높았다(p<0.05). 또한 고정식 자전거의 60%강도에서 나타난 심혈관계에 미치는 부담이 85%강도의 트레드밀에서 받는 부담과 비슷하였다. 둘째, 혈압약물비반응군은 모든 운동방법(중강도 트레드밀, 고강도 트레드밀, 중강도 고정식자전거, 고강도 고정식자전거)에서 혈압약물반응군보다 유의하게 높은 이완기혈압(DBP)을 나타냈고(p<0.05), 이와 함께 평균동맥혈압(MAP) 역시 모든 운동방법에서 혈압약물비반응군이 혈압약물반응군 보다 유의하게 높았다(p<0.05). 이때, 수축기 혈압에서는 혈압약물비반응군이 중강도자전거 운동방법(60%HRR-cycle exercise)에서만 정상군보다 유의하게 높게 나타났다(p<0.05). 즉, 혈압약물비반응군이 중강도자전거 운동방법에서 수축기혈압과 이완기기혈압, 평균동맥혈압이 혈압약물반응군 보다 유의하게 높았다. 셋째, 심근산소소비량(RPP)에서 혈압약물비반응군과 혈압약물반응군과 중강도자전거 운동에서 유의한 차이는 없었으며 중강도 트레드밀 운동과 중강도자전거 운동 간의 평균 차이에서 중강도자전거 운동이 혈압약물반응군보다 혈압약물비반응군에서 유의하게 높게 증가하였음에도 불구하고 운동자각도(RPE)는 중강도자전거 운동에서 혈압약물반응군과 혈압약물비반응군 간에는 차이를 보이지 않았다. 이상의 결과, 심장재활운동전에 내과적으로 혈압 조절과 상관없이 고혈압 심장질환과 정상혈압 심장질환환자 모두 같은 강도에서 트레드밀보다 고정식 자전거 운동 시에는 모두 철저한 혈압감시가 필요하였다. 특히 고혈압심혈관질환환자는 혈압의 상승폭이 보다 큰 결과를 보여 트레드밀에 적용한 운동 강도를 동일하게 고정식자전거에 적용하는 것은 적합하지 못하였다.

Keywords

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