여성노인 당뇨병 환자의 심폐체력 평가를 위한 Tecumseh Step Test의 타당성 = Validity of the Tecumseh Step Test for Evaluation of Cardiorespiratory Fitness in Elderly Women Patients with Diabetes Mellitus

국문 초록 (Abstract)

본 연구는 제2형 당뇨병을 가지고 있는 여성노인을 대상으로 최대산소섭취량(VO2max)을 평가하기 위한 Tecumseh Step Test(TST)의 타당도와 유용성을 알아보는데 그 목적이 있다. 제2형 당뇨병으로 진단받은 60대~70대(67.5±7.0세)의 여성노인 64명을 대상으로 신체구성성분, 혈액검사를 실시하고, 모든 대상자는 운동부하검사를 위해 cycle ergometer, 6-min walking test(6-MWT) 및 TST를 측정을 실시하였다. 에르고미터를 이용한 VO2max와 TST의 회복시 심박수, 6-MWT의 이동거리의 상관관계를 알아보고자 피어슨 상관계수와 회귀분석을 통해 다음과 같은 결과를 얻었다. 에르고미터를 통한 VO2max와 TST의 회복기 심박수는 유의한 음의 상관관계(r=-.490, p<.001), 6-MWT의 이동거리와는 양의 상관관계(r=.533, p<.001)를 나타냈었다. 다중회귀분석 결과 6-MWT와 TST는 각각 40%, 39%의 비슷한 설명력을 가지는 것으로 나타났으나, TST검사(p=.002)가 6-MWT(p=.006) 보다 다소 높은 타당도를 나타내었다. 이러한 결과를 통해 볼 때, TST 검사는 당뇨병을 가진 여성노인을 위해 최대산소섭취량을 설명하는 예측인자로 유용성이 있는 것으로 고려된다.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate validity of the Tecumseh Step Test(TST) for evaluation of cardiorespiratory fitness in elderly women patients with diabetes mellitus. Sixty four elderly women patients with type 2 diabetes mellitus aged 60-79 years volunteered for this study. All the subjects underwent incremental exercise test using a cycle-ergometer to estimate the rate of oxygen consumption(VO₂), 6-min walking test(6-MWT), and TST. Data were analyzed using correlation coefficients and multiple regress analysis. The results of this study were as follows. The significant negative correlation(r=-.490, p<.001) between VO₂max and the recovery heart rate of TST was observed, whereas VO₂max was significantly positively correlated to the distance of 6-MWT(r=.533, p<.001). In regression analysis, both 6-MWT and TST were an important predict variation to VO2max. The recovery of TST(p=.002) rather than the distance of 6-MWT(p=.006) showed a higher test validity for evaluation of cardiorespiratory fitness. These results suggest that TST may be useful to test cardiorespiratory fitness in elderly women patients with type 2 diabetes mellitus.

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