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- 저자 : 윤도은(Do Eun Yun) (검색결과 3 건)
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만성 심부전 환자의 심장이식 수술 전 하지 근력 및리컴번트 사이클링 운동 프로그램의 효과 대
류호열(Ho-Youl Ryu),오재원(Jaewon-Oh),윤도은(Do-Eun Yun),김지수(Ji-Soo Kim),김수경(Soo-Kyung Kim),강석민(Seok-Min Kang) 대한심장호흡물리치료학회 2017 대한심장호흡물리치료학회지 Vol.5 No.1
Purpose : Muscle weakness, especially leg muscle is the key characteristic that can be found in heart failure(HF) patients who are waiting for heart transplantation(HT) for a long time. Exercise training before HT is important to reverse muscular de-conditioning that place HT recipients at increased cardiovascular risk. The purpose of this study is to investigate the effect of lower extremity strengthening and recumbent cycle aerobic exercise program on muscular fitness in HF patients prior to HT. Methods : Each subject completed at least 24 sessions of lower extremity strengthening exercise(leg press 20 min / 1 session) and recumbent cycle aerobic exercise (20 min / 1 session) at Severance cardiac wellness center who was hospitalized waiting for HT. Knee extensor maximal voluntary isometric strength (MVIC), mean muscle power (MMP) and 6 minutes walking distance (6 MWD) were recorded at baseline (D1), and at the end of 24 training sessions (D2), and at discharge date after HT (D3). Results : The study population consisted of 8 HF patients (7 male, 35±19 years old, mean EF=18.3±6.4%). All subjects completed at least 24 training session with no adverse events. The MVIC (403.9±73.9 vs. 478±76.9 N, p=0.001), MMP (155.5±57 vs. 186.7±65 watt, p=0.003), and 6 MWD (441.6±64.9 vs. 520.3±53.9 m, p=0.002) measured at D2 were significantly increased compared with baseline, respectively. However, the MVIC (478±76.9 vs. 398±97.4 N, p=0.032) and MMP (186.7±65 vs. 145.5±77.6 watt, p=0.015) measured at D3 were significantly decreased compared with D2, whereas 6 MWD (520.3±53.9 vs. 520.7±35.4 m, p=0.708) were not different significantly. MVIC and MMP showed not significant differences compared D1 with D3, but 6 MWD (441.6±64.9 vs. 520.7±35.4 m, p=0.011) was improved significantly. Conclusion : Our study showed that lower extremity muscle strengthening and aerobic recumbent cycling exercise program prior to HT can improve HF patient’s muscular fitness and 6 MWD.
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만성 심부전 환자의 운동부하 심폐기능 평가 중단 원인에 따른 호흡가스 변인 분석
류호열(Ho Youl Ryu),오재원(Jaewon Oh),김인철(In-Cheol Kim),윤도은(Do Eun Yun),김지수(Ji Soo Kim),김수경(Soo Kyung Kim),강석민(Seok-Min Kang) 대한심장호흡물리치료학회 2016 대한심장호흡물리치료학회지 Vol.4 No.1
Purpose : The purpose of this study is to investigate cardiorespiratory parameters according to the termination reasons of graded exercise test in patients with chronic heart failure (CHF). Methods : The study population consisted of 116 patients with CHF (74.1% male, age 62 ± 10 years old). Each subject safely finished cardiopulmonary exercise test (CPET) without symptom limited emergency stop such as ventricular tachycardia or syncope, or chest pain. The CPET parameters were collected from Mar. 2014 to Feb. 2016. The reasons for test termination were subdivided into 3 groups: test end (9.5%, n=11); dyspnea (56%, n=65); leg pain & fatigue (34.5%, n=40). Results : The patients with leg pain & fatigue are older than those with dyspnea and test end (66 ± 10 vs. 61 ± 9 vs. 55 ± 7 years old, respectively, p=0.001), The HF patients with leg pain & fatigue showed lower peak VO 2 (18.9 ± 4.3 vs. 23.9 ± 4.4 vs. 31.6 ± 5.5 ml·kg -1 ·min -1 , respectively, p<0.001), higher VE/VCO 2 (35.5 ± 5.5 vs. 30.8 ± 4.4 vs. 29.1 ± 5.4, respectively, p<0.001) and higher prevalence of poor effort (respiratory exchange ratio, RER<1.1, 57.5% vs. 36.9% vs. 18.2%, respectively, p=0.028) than those with dyspnea and test end. Conclusion : Patients who terminated exercise due to leg pain & fatigue showed decreased exercise capacity which further leads to underestimation of cardiopulmonary function compared to other reasons. Thus, healthcare providers should evaluate patient’s underlying skeletal muscular diseases to provide comprehensive cardiac rehabilitation such as pain control and individualized leg muscle endurance training program.
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정상인에서 리컴번트(recumbent)와 직립(upright) 사이클 운동의 심폐반응 비교
류호열(Ho-Youl Ryu),이중희(Ho-Youl Ryu),윤종찬(Jong-Chan Youn),도일선(Il-Sun Do),윤도은(Do-Eun Yun),강석민(Seok-Min Kang) 대한심장호흡물리치료학회 2014 대한심장호흡물리치료학회지 Vol.2 No.1
Purpose : The purpose of this study is to compare cardiopulmonary exercise parameters during recumbent cycling(RC) and upright cycling(UC) in healthy subjects. Methods : The study population consisted of 12 healthy volunteers(male=7, mean age 29.7±5.7, female=5, 25.4±2.9 years old). Each subject was randomly assigned to perform RC or UC, and started workload at 10 watt and increased by maximal pedaling(to 100 watt). After taking a rest during 1 week, they performed cycling vice versa. Results : Baseline parameters including heart rate(HR), systolic blood pressure(SBP) and rate pressure product(RPP) are comparable between RC and UC group. Submaximal SBP(138.1±10.8 vs. 151.3±15.9 mmHg, p=0.027), submaximal RPP (15244.2±1860.8 vs. 17698.8±3325.4, p=.036), and maximal RPP(25328.3±3032.9 vs. 28443.8±3139.4, p=.022) in RC group were significantly lower than those of UC group. Peak VO 2 in RC group tends to be lower than UC group(27.2±3.6 vs. 29.5±2.8 mL/kg/min, p=.087). Conclusion : With similar exercise intensity, RC showed less cardiopulmonary stress compared with UC. These results provide the feasibility of RC based cardiac rehabilitation program in patients with heart failure or in elderly.
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