【摘要】：目的:了解55-64歲人群的最大脂肪代謝強(qiáng)度;探討年齡、性別、體脂百分比、運動時間對該人群在最大脂肪代謝強(qiáng)度下運動時心血管風(fēng)險的影響。方法:選取北京市某社區(qū)41名55-64歲健康人群,男20名,女21名。采用功率車遞增運動負(fù)荷方案測試心肺耐力,計算最大脂肪代謝強(qiáng)度。使該人群在Fatmax下進(jìn)行持續(xù)運動,采集運動中的相關(guān)數(shù)據(jù),評價不同年齡、性別、體脂百分比、運動時間對運動中的心率、收縮壓、舒張壓、脈壓、心率收縮壓乘積的影響。數(shù)據(jù)采用Shapiro-Wilk正態(tài)分布檢驗,兩組間差異采用獨立樣本T檢驗,率的比較采用卡方檢驗,不同時間上的數(shù)據(jù)變化采用重復(fù)測量的多元方差分析,顯著性水準(zhǔn)P=0.05。結(jié)果:(1)55-64歲人群Fatmax范圍為30%—75%VO2max,男性約為50%VO2max,女性約為53%VO2max。(2)心肺耐力與Fatmax(VO2max%)呈負(fù)相關(guān),且具有非常顯著性差異(p0.01)。(3)男性Fatmax(VO2max%)顯著低于女性(p0.05);男性中,體脂正常者的Fatmax(VO2max%)低于超重肥胖者,無顯著性差異;女性中,體脂正常者的Fatmax(VO2max%)明顯低于超重肥胖者,且具有非常顯著性差異(p0.01)。(4)運動中ST段下降≥0.1mv反應(yīng)的發(fā)生率為7.32%。(5)Fatmax運動30min時,老年組的PP要顯著高于中年組(p0.05)。(6)Fatmax運動30min時,男性的SBP和DBP顯著高于女性,男性的RPP在30min內(nèi)有顯著變化(p0.05);在男性中,超重肥胖者RPP在30min內(nèi)的變化存在顯著性差異(p0.05)。結(jié)論:(1)55-64歲中老年人Fatmax的運動強(qiáng)度范圍約在30%-75%VO2max,分布較廣,個體差異較大。(2)55-64歲人群進(jìn)行Fatmax運動時心血管事件陽性反應(yīng)發(fā)生率為7.32%。(3)55-64歲人群進(jìn)行Fatmax運動時,老年人風(fēng)險高于中年人,男性風(fēng)險高于女性,超重肥胖者風(fēng)險高于體脂正常人群。
[Abstract]:Objective: to investigate the effects of age, sex, percentage of body fat and exercise time on cardiovascular risk in 55-64 year old population. Methods: 41 healthy persons aged 55-64 years were selected from a community in Beijing, including 20 males and 21 females. The cardiopulmonary endurance was measured by the incremental exercise load scheme and the maximum fat metabolic intensity was calculated. To make this group continue to exercise under Fatmax, collect relevant data during exercise, evaluate the effect of age, sex, percentage of body fat, exercise time on heart rate, systolic blood pressure, diastolic blood pressure, pulse pressure and the product of heart rate systolic pressure. The data were tested by Shapiro-Wilk normal distribution test, the difference between the two groups was tested by independent sample T test, and the rate was compared by chi-square test. Results: (1) the range of Fatmax in 55-64 age group was 30-75VO2max. male was about 50VO2max. female was about 53VO2max. (2) cardiopulmonary endurance was negatively correlated with Fatmax (VO2max%), and there was significant difference (p0.01). (3) male Fatmax (VO2max%) was significantly lower than that of female (p0.05), and the Fatmax of men with normal body fat (VO2max%) was lower than that of overweight obesity. There was no significant difference in Fatmax (VO2max%) between normal and obese women, and there was a significant difference (p0.01). (4) in the incidence of St segment decrease 鈮，

本文編號：2165956