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휠체어 추진 방법에 따른 하지마비자와 정상인의 생리적 반응 비교
정동춘,임완기 한국특수체육학회 1999 한국특수체육학회지 Vol.7 No.2
The purpose of this study was to compare metabolic and cardiopulmonary responses between paralegia(PA) and able-bodied(AB) for forward wheelchair propulsion(FOR) and backward wheelchair propulsion(BAC) at same treadmill protocol. Highly active able-bodied(N=8) and paraplegia(N=8, Level L1∼T12) exercised at 3-min stage at speeds of 0.83(0% grade), 1.11(2% grade), 1.39(4% grade), 1.67(6% grade), 1.95(8% grade) for both propulsion technique after performing 2-wks. adaptation training. Oxygen uptake(VO_2). % of VO_2peak(%VO_2peak) heart rate(HR), oxygen pulse(O_2pulse), respiratory exchange ratio(RER), pulmonary ventilation(V_E) were determined at the moment of anaerobic threshold and maximal exercise. For maximal forward and backward wheelchair propulsion test, 1) %VO_2peak-AT, HRmax and exercise time showed significantly higher in forward than in backward(p<0.05), RER-AT was significantly higher in backward(p<0.05). 2) In VO_2 of backward propulsion, AB was significantly higher than PA(p<0.05). In VO_2/kg of forward propulsion. PA was significantly higher than AB(p<0.05). In O_2pulse-AT of backward propulsion. PA was significantly higher than AB(P<0.05). 3) The RER of backward propulsion in the ending point of maximal exercise, AB was significantly higher than PA(p<0.05). 4) The exercise time of forward propulsion. PA was significantly higher than AB(P<0.05). The greater metabolic and cardiopulmonary responses observed during maximal backward wheelchair propulsion test may be due to insufficient backward propulsion technique and relatively long propulsion time 'used for backward propulsion. Above findings demonstrated that backward propulsion technique had similar effective propulsion technique compared to forward propulsion in reducing higher physiological demands of forward propulsion technique. To make these physiological demands small, backward wheelchair propulsion technique will must be utilized.
비만 , 콜레스테롤 및 중성지방 수준에 대한 고혈압의 비교 위험도
이병근,정성태,정동춘 한국운동과학회 1997 운동과학 Vol.6 No.1
비만, 콜레스테롤 및 중성지방 수준에 대한 고혈압의 비교 위험도. 운동과학, 제6권 제1호, 45-58, 1977. 본 연구의 목적은 연령에 따른 혈압, 체지방율(%fat), 신체질량지수(BMI), 요위둔위비(WHR), 총콜레스테롤 및 중성 지방 수준을 비교하고, 비만, 총콜레스테롤 및 중성지방 수준에 따른 고혈압의 비교 위험도를 분석하는데 있다. 본 연구의 대상은 서울과 인천지역 성인으로 남자 133명(38.4±9.2세), 여자 136명(39.1±12.0세), 총 269명이었다. 본 연구의 측정항목은 신장, 체중, 체지방율(%fat), 신체질량지수(BMI), 혈압, 총콜레스테롤 및 중성지방이었다. 연령에 따른 각 변수의 차이를 알아보기 위하여 일원변량분석을 실시하고, 30세 전후로 나누어 수축기 및 이완기 혈압에 미치는 요인을 분석하기 위하여 단계별 분석법으로 다중회귀분석을 실시하였다. 또한 각 변수의 수준에 따른 고혈압 발생 비율을 비교하기 위하여 logistic 회귀분석을 실시하여 비교 위험도(odds ratio)를 산출하였다. 연령에 따른 각 변수의 차이를 비교한 결과 남자에서 BMI, 여자에서 WHR만을 제외하고 모든 변수에서 유의한 차이가 나타났다. 수축기혈압의 경우 주요 결정변수는 신체질량지수, 체지방율, 연령 및 TG로 나타났으며, 이완기혈압은 체지방율, 신체질량지수 및 TG로 나타났다. 고혈압에 대한 비교 위험도를 분석한 결과 남자는 연령, 신체질량 지수 및 TG 등의 변수에서, 여자는 연령, 요위둔위비 및 TG 등의 변수에서 유의한 차이가 나타났다. Relative Risk of Hypertension for Obesity, Hypercholesterolemia and Hypertriglyceridemia. Exercise Science, 6(1); 45-58, 1977. The purpose of this study is to compare the level of the variables rated with blood pressure by age, and to analyze the odds ratio of hypertension for obesity, hypertriglyceridemia, hypercholesterolemia. The subjects consisted of 133 males(38.4±9.2yrs), 136 females(39.1±12.0yrs), a total of 269 persons. The items considered were height, weight, blood pressure, %fat, BMI, WHR, total cholesterol and TG. One-way ANOVA was conducted to compare the level of each variable by age level. Stepwise multiple regression was used to analyze the factors related with blood pressure. The odds ratio was calculated to analyze the percentage of hypertension according to the level of variables by logistic regression. As a result of comparison of each variable by age level, there were significant differences in almost of variables except the BMI of males and the WHR of females. As a result of regression analysis, systolic blood pressure was affected by the BMI, %fat, age and TG, and diastolic blood pressure was affected by the %fat, BMI and TG. As a result of odds ratio of hypertension, there were significant differences in age, BMI and TG on males, and in age, WHR and TG on females.