METs, metabolic equivalents

MET,代谢等价物
  • 文章类型: Journal Article
    有些人认为土豆是不健康的蔬菜,可能会导致不良的心脏代谢健康结果。在Framingham后代研究中,我们评估了中年和老年人的马铃薯消费(包括油炸和非油炸类型)与三个关键心脏代谢结果之间的关联。我们纳入了2523名年龄≥30岁的受试者,这些受试者的饮食数据来自3-d食物记录。Cox比例风险模型用于估计高血压的风险比(HR)和95%置信区间(CI)。2型糖尿病或空腹血糖受损(T2DM/IFG),和高甘油三酯,调整人体测量学,人口和生活方式因素。在本研究中,食用的36%的土豆是烤的,28%油炸,14%捣碎,9%煮沸,其余以其他方式煮熟。总的来说,较高的马铃薯总摄入量(≥4v。<1杯当量/周)与T2DM/IFG的风险无关(HR0·97,95%CI0·81,1·15),高血压(HR0·95;95%CI0·80,1·12)或甘油三酸酯升高(HR0·99,95%CI0·86,1·13)。分层分析用于评估身体活动水平和红肉消费的效果变化,在这些分析中,马铃薯摄入没有不良影响。然而,当与更高水平的体力活动相结合时,油炸土豆的消费量增加与T2DM/IFG的风险降低24%(95%CI0·60,0·96)相关,再加上红肉消费减少,油炸马铃薯摄入量增加与甘油三酯升高的风险降低26%(95%CI0·56,0·99)相关.在这个前瞻性队列中,油炸或非油炸马铃薯消费与T2DM/IFG风险之间没有不良关联,高血压或甘油三酯升高。
    Some consider potatoes to be unhealthy vegetables that may contribute to adverse cardiometabolic health outcomes. We evaluated the association between potato consumption (including fried and non-fried types) and three key cardiometabolic outcomes among middle-aged and older adults in the Framingham Offspring Study. We included 2523 subjects ≥30 years of age with available dietary data from 3-d food records. Cox-proportional hazards models were used to estimate hazard ratios (HRs) and 95 % confidence intervals (CIs) for hypertension, type 2 diabetes or impaired fasting glucose (T2DM/IFG), and elevated triglycerides, adjusting for anthropometric, demographic and lifestyle factors. In the present study, 36 % of potatoes consumed were baked, 28 % fried, 14 % mashed, 9 % boiled and the rest cooked in other ways. Overall, higher total potato intake (≥4 v. <1 cup-equivalents/week) was not associated with risks of T2DM/IFG (HR 0⋅97, 95 % CI 0⋅81, 1⋅15), hypertension (HR 0⋅95; 95 % CI 0⋅80, 1⋅12) or elevated triglycerides (HR 0⋅99, 95 % CI 0⋅86, 1⋅13). Stratified analyses were used to evaluate effect modification by physical activity levels and red meat consumption, and in those analyses, there were no adverse effects of potato intake. However, when combined with higher levels of physical activity, greater consumption of fried potatoes was associated with a 24 % lower risk (95 % CI 0⋅60, 0⋅96) of T2DM/IFG, and in combination with lower red meat consumption, higher fried potato intake was associated with a 26 % lower risk (95 % CI 0⋅56, 0⋅99) of elevated triglycerides. In this prospective cohort, there was no adverse association between fried or non-fried potato consumption and risks of T2DM/IFG, hypertension or elevated triglycerides.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    UNASSIGNED: End-stage liver disease (ESLD) is not considered a risk factor for atherosclerotic cardiovascular disease (ASCVD). However, lifestyle characteristics commonly associated with increased ASCVD risk are highly prevalent in ESLD. Emerging literature shows a high burden of asymptomatic coronary artery disease (CAD) in patients with ESLD and a high ASCVD risk in liver transplantation (LT) recipients. Coronary artery calcium score (CAC) is a noninvasive test providing reliable CAD risk stratification. We implemented an LT evaluation protocol with CAC playing a central role in triaging and determining the need for further CAD assessment. Here, we inform our results from this early experience.
    UNASSIGNED: Patients with ESLD referred for LT evaluation were prospectively studied. We compared accuracy of CAC against that of CAD risk factors/scores, troponin I, dobutamine stress echocardiogram (DSE), and single-photon emission computed tomography (SPECT) to detect coronary stenosis ≥70 (CAD ≥ 70) per left heart catheterization (LHC). Thirty-day post-LT cardiac outcomes were also analyzed.
    UNASSIGNED: One hundred twenty-four of 148 (84%) patients underwent CAC, 106 (72%) DSE/SPECT, and 50 (34%) LHC. CAC ≥ 400 was found in 35 (28%), 100 to 399 in 17 (14%), and <100 in 72 (58%). LHC identified CAD ≥ 70% in 8 of 29 (28%), 2 of 9 (22%), and 0 of 4, respectively. Two acute coronary syndromes occurred after LT in a patient with CAC 811 (CAD < 70%), and one with CAC 347 (CAD ≥ 70%). No patients with CAC < 100 presented with acute coronary syndrome after LT. When using CAD ≥ 70% as primary endpoint of LT evaluation, CAC ≥ 346 was the only test showing predictive usefulness (negative predictive value 100%).
    UNASSIGNED: CAC is a promising tool to guide CAD risk stratification and need for LHC during LT evaluation. Patients with a CAC < 100 can safely undergo LT without the need for LHC or cardiac stress testing, whereas a CAC < 346 accurately rules out significant CAD stenosis (≥70%) on LHC, outperforming other CAD risk-stratification strategies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    杂合家族性高胆固醇血症(heFH)是一种导致过早冠状动脉疾病(CAD)的遗传性疾病。我们假设高胆固醇血症的亚临床病理生理后果可以通过压力测试和心肌应变成像在临床上明显的CAD发生之前检测到。
    我们评估了46名无已知动脉高血压/糖尿病/血管病变(如CAD)的heFH男性和39名年龄匹配的健康男性的跑步机测试(ETT)。基线收缩压/舒张压(BP)和心率(HR),使用布鲁斯协议。除了射血分数外,还获得了左心室(LV)的整体纵向应变(GLS)。
    与对照组相比,heFH男性达到了显着更高的收缩压和舒张压峰值(分别为p=0.002和p<0.001)。heFH患者的平均速率压力乘积明显更高(p=0.038)。在heFH组中,ETT的持续时间和代谢当量的工作量均较低(分别为p<0.001和p<0.001)。HeFH男性的收缩压和舒张压的基线至峰值升高较高(收缩压和舒张压的p=0.008和p<0.001,分别)。此外,heFH男性从基线到峰值的HR上升较高,与对照组相比;(p=0.047)。HEHF男性的GLS略有下降(p=0.014),尽管两组的射血分数相似.
    在ETT期间,男性男性的收缩压/舒张压升高较高,这可能反映得很早,临床前高血压.此外,存在LVGLS的轻微损害,尽管在常规二维超声心动图中没有明显的心肌功能障碍。
    UNASSIGNED: Heterozygous familial hypercholesterolemia (heFH) is a genetic disorder leading to premature coronary artery disease (CAD). We hypothesized that the subclinical pathophysiologic consequences of hypercholesterolemia may be detected before the occurrence of clinically overt CAD by stress testing and myocardial strain imaging.
    UNASSIGNED: We evaluated the treadmill tests (ETTs) of 46 heFH men without known arterial hypertension/diabetes mellitus/vasculopathy like CAD and of 39 healthy men matched for age, baseline systolic/diastolic blood pressure (BP) and heart rate (HR), using Bruce protocol. Global longitudinal strain (GLS) of the left ventricle (LV) additionally to ejection fraction was obtained.
    UNASSIGNED: heFH men reached a significantly higher peak systolic and diastolic BP compared to controls (p = 0.002 and p < 0.001, respectively). Mean rate pressure product was significantly higher in heFH patients (p = 0.038). Both duration of the ETT and workload in metabolic equivalents was lower in the heFH group (p < 0.001 and p < 0.001, respectively). Baseline to peak rise of systolic and diastolic BP in heFH men was higher (p = 0.008 and p < 0.001 for systolic and diastolic BP, respectively). Furthermore, heFH men had higher rise of HR from baseline to peak, compared to controls; (p = 0.047). GLS in heHF men was slightly decreased (p = 0.014), although the ejection fraction was similar in both groups.
    UNASSIGNED: heFH men have a higher rise in systolic/diastolic BP during ETT, which may reflect early, preclinical hypertension. Furthermore, slight impairment of LV GLS is present, despite the absence of apparent myocardial dysfunction in conventional 2D echocardiography.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    骨的修饰是贯穿一生的,受多种因素的影响,包括体力活动。这项研究调查了12个月内男女大学长跑运动员和非运动员对照组的局部骨矿物质密度(aBMD)和髋关节结构的变化。采用双能X线骨密度仪(DXA)和髋关节结构分析(HSA)软件,ABMD在后前(PA)和外侧脊柱,股骨颈,全髋关节(TH),全身(WB),在12个月内测量了3次股骨狭窄颈部(NN)的骨几何形状。HSA包括横截面积(CSA),横截面惯性矩(CSMI),和Z截面模量(Z)。男性跑步者在TH和WB的aBMD明显较高,而CSA较大,CSMI,在12个月结束时,Z高于男性对照组。在12个月结束时,女性对照组的PA脊柱aBMD高于女性跑步者。男性跑步者在PA(p=0.003)和外侧脊柱(p=0.002)的aBMD显着增加,和TH(p=0.002),女性跑步者在TH(p=0.015)和WB(p=0.002)的aBMD显着降低,男性对照组在PA脊柱(p<0.001)和WB(p<0.001)的aBMD显着增加,女性对照组在一年中,脊柱外侧和TH的aBMD显着下降(p=0.008)。当应用无骨瘦质量和维生素D的协变量时,男性长跑运动员的CSA显着改善(3.602±0.139vs.3.675±0.122cm2,p=0.05),CSMI(3.324±0.200至3.467±0.212cm4,p<0.05),和Z(1.81±0.08至1.87±0.08cm3,p=0.05)。一年中没有发生其他髋关节结构变化。远距离跑步可能对大学年龄的男性而不是女性的aBMD和髋关节结构有益。需要进一步研究负重活动的潜在影响,能源可用性,男性和女性的aBMD和髋关节结构的激素状态。
    Modification of bone is continuous throughout life and influenced by many factors, including physical activity. This study investigated changes in areal bone mineral density (aBMD) and hip structure among male and female collegiate distance runners and non-athlete controls over 12 months. Using dual-energy x-ray absorptiometry (DXA) and hip structure analysis (HSA) software, aBMD at the posterior-anterior (PA) and lateral spine, femoral neck, total hip (TH), whole body (WB), and bone geometry at the narrow neck (NN) of the femur was measured three times over 12 months. HSA included cross-sectional area (CSA), cross-sectional moment of inertia (CSMI), and Z-section modulus (Z). Male runners had significantly higher aBMD at TH and WB and greater CSA, CSMI, and Z than male controls at the end of 12 months. Female controls had higher aBMD at the PA spine than female runners at the end of 12 months. Male runners had significant increases in aBMD at the PA (p = 0.003) and lateral spine (p = 0.002), and TH (p = 0.002), female runners had significant decreases in aBMD at TH (p = 0.015) and WB (p = 0.002), male controls had significant increases in aBMD at the PA spine (p < 0.001) and WB (p < 0.001), and female controls had significant decreases in aBMD at lateral spine and TH (p = 0.008) over the year. When applying covariates of bone-free lean mass and vitamin D, male distance runners demonstrated significant improvement in CSA (3.602 ± 0.139 vs. 3.675 ± 0.122 cm2, p = 0.05), CSMI (3.324 ± 0.200 to 3.467 ± 0.212 cm4, p < 0.05), and Z (1.81 ± 0.08 to 1.87 ± 0.08 cm3, p = 0.05) during the study. No other changes in hip structure occurred over the year. Distance running may be beneficial to aBMD and hip structure in college-age males but not females. Further research is needed on potential influences of weight-bearing activity, energy availability, and hormonal status on aBMD and hip structure in males and females.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    UNASSIGNED: High vegetable intake is associated with beneficial effects on bone. However, the mechanisms remain uncertain. Green leafy vegetables are a rich source of vitamin K1, which is known to have large effects on osteoblasts and osteocalcin (OC) metabolism.
    UNASSIGNED: To examine the effects of consumption of two to three extra serves of green leafy vegetables daily on bone metabolism.
    UNASSIGNED: Thirty individuals (mean age 61.8 ± 9.9 years, 67% male) completed three experimental phases in a randomised controlled crossover design, each lasting four weeks, with a washout period of four weeks between phases (clinical trial registration: ACTRN12615000194561). The three experimental phases were: (i) increased dietary vitamin K1 by consuming green leafy vegetables (H-K; ~200 g/d containing 164.3 [99.5-384.7] μg/d of vitamin K1); (ii) low vitamin K1 by consuming vitamin K1-poor vegetables (L-K; ~200 g/d containing 9.4 [7.7-11.6] μg/d of vitamin K1); and (iii) control (CON) where participants consumed an energy-matched non-vegetable control. OC forms, total OC (tOC), carboxylated OC (cOC) and undercarboxylated OC (ucOC), were measured in serum pre- and post-intervention for each experimental phase using a sandwich-electrochemiluminescence immunoassay.
    UNASSIGNED: Pre-intervention tOC, ucOC and ucOC:tOC levels were similar between phases (P > .05). Following H-K, but not L-K, tOC, ucOC and ucOC:tOC levels were significantly lower compared to pre-intervention levels (P ≤ .001) and compared to CON (~14%, 31% and 19%, respectively, all P < .05), while cOC remained unchanged.
    UNASSIGNED: In middle-aged healthy men and women, an easily achieved increase in dietary intake of vitamin K1-rich green leafy vegetables substantially reduces serum tOC and ucOC suggesting increased entry of OC into bone matrix, where it may improve the material property of bone. In conjunction with previous epidemiological and randomised controlled trial data, these findings suggest that interventions to increase vegetable intake over extended periods should include bone end points including fracture risk.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    我们调查了工作场所锻炼与心理困扰之间的关系,和工作投入,这两个因素都与员工的心理健康和工作效率有关。来自明治安田生活方式研究的数据,从2017年7月至2017年12月收集,均使用。从东京的明治安田新宿医疗中心收集了年度健康检查和问卷调查的数据,日本。1321名参与者(平均年龄:50.8±9.5岁,女性比例:68.2%,白领比率:64.7%)根据进行工作场所锻炼的频率分为三组:少于一次,一次或两次,一周三次或更多次。使用乌得勒支工作敬业度量表和凯斯勒心理困扰量表(K6)评估了工作投入和心理困扰的活力。进行了Logistic回归分析,以检查工作场所锻炼频率与工作投入或心理困扰之间的关系。人口统计变量,健康行为,健康状况,工作特点,对客观测量的体力活动和久坐行为进行比值比(OR)和95%置信区间(95%CI)校正.每周进行一次或两次以及三次或更多次的工作场所锻炼的参与者显示出明显更高的OR(OR=1.93,95%CI=1.00-3.71,p=0.049,OR=1.63,95%CI=1.23-2.15,p=0.001)。即使对协变量进行了调整,两组的工作场所锻炼也均未显示出明显的心理困扰OR。工作场所锻炼的实践与体力活动和久坐行为的工作参与活力呈正相关,独立相关,并且无论一次或两次的频率如何,都观察到了这种关联,每周三次或更多次。工作场所锻炼,然而,与心理困扰无关。我们的研究结果表明,工作场所锻炼至少每周一次或两次可能会对增强工作投入的活力产生实际影响。尤其是白领。
    We investigated the relationship between workplace exercise and psychological distress, and work engagement, both of which are factors related to the mental health and work productivity of employees. Data from the Meiji Yasuda Lifestyle study, collected from July 2017 through December 2017, were used. Data from an annual health checkup and questionnaire were collected from the Meiji Yasuda Shinjuku Medical Center in Tokyo, Japan. The 1321 participants (mean age: 50.8 ± 9.5 years, rate of female: 68.2%, rate of white-collar workers: 64.7%) were divided into three groups based on the frequency of performing workplace exercise: less than once, once or twice, and three or more times a week. Vigor of work engagement and psychological distress were assessed using the Utrecht Work Engagement Scale and Kessler Psychological Distress Scale (K6). Logistic regression analyses were performed to examine relationships between workplace exercise frequencies and work engagement or psychological distress. Demographic variables, health behaviors, health status, work characteristics, and objectively measured physical activity and sedentary behavior were adjusted for odds ratio (OR) and 95% confidence interval (95% CI). Participants who performed workplace exercise once or twice and three or more times a week showed a significantly higher OR (OR = 1.93, 95% CI = 1.00-3.71, p = 0.049, OR = 1.63, 95% CI = 1.23-2.15, p = 0.001, respectively) for vigor of work engagement. Neither groups of workplace exercise showed a significant OR for psychological distress even when adjusted for covariates. The practice of workplace exercise is positively and independently related to vigor of work engagements of physical activity and sedentary behavior, and the association was observed regardless of the frequency of once or twice, or three or more times a week. Workplace exercise, however, does not correlate with psychological distress. Our findings indicated that workplace exercise at least once or twice a week could have practical implications for the enhancement of vigor of work engagement, especially among white-collar workers.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:身体活动对维持和促进健康很重要。这在患有先天性心脏病(CHD)的患者中特别感兴趣,其中应预防获得性心脏病。世界卫生组织(WHO)建议至少每周2.5小时的身体活动超过3代谢当量(METS),以实现积极的健康效果。尚不清楚成年CHD患者的身体活动水平(PAL)是否因原籍国而异。
    方法:从5大洲15个国家招募的3896名冠心病成年人完成了自我报告的仪器,包括健康行为量表(HBS-CHD),在APPROACH-IS项目中。对于每个病人来说,我们计算了世卫组织的建议是否实现.使用广义线性混合模型研究了相关因素。
    结果:平均而言,31%的人达到了世卫组织的建议,但地理区域之间差异很大(印度:10%-挪威:53%)。身体活动水平的预测指标符合世卫组织的建议,以居住国为随机效应,男性(OR1.78,95CI1.52-2.08),NYHA-I级(OR3.10,95CI1.71-5.62)和较不复杂的疾病(OR1.46,95CI1.16-1.83)。相比之下,年龄较大(OR0.97,95CI0.96-0.98),较低的教育水平(OR0.41,95CI0.26-0.64)和失业(OR0.57,95CI0.42-0.77)与达到WHO建议呈负相关.
    结论:相当比例的CHD患者未达到WHO建议的体力活动。不同原籍国的身体活动水平差异很大。根据确定的预测因素,可以识别易受伤害的患者并提供特定的行为干预措施。
    BACKGROUND: Physical activity is important to maintain and promote health. This is of particular interest in patients with congenital heart disease (CHD) where acquired heart disease should be prevented. The World Health Organization (WHO) recommends a minimum of 2.5 h/week of physical activity exceeding 3 metabolic equivalents (METS) to achieve positive health effects. It is unknown whether physical activity levels (PAL) in adult CHD patients differ by country of origin.
    METHODS: 3896 adults with CHD recruited from 15 countries over 5 continents completed self-reported instruments, including the Health Behaviour Scale (HBS-CHD), within the APPROACH-IS project. For each patient, we calculated whether WHO recommendations were achieved or not. Associated factors were investigated using Generalized Linear Mixed Models.
    RESULTS: On average, 31% reached the WHO recommendations but with a great variation between geographical areas (India: 10%-Norway: 53%). Predictors for physical activity level in line with the WHO recommendations, with country of residence as random effect, were male sex (OR 1.78, 95%CI 1.52-2.08), NYHA-class I (OR 3.10, 95%CI 1.71-5.62) and less complex disease (OR 1.46, 95%CI 1.16-1.83). In contrast, older age (OR 0.97, 95%CI 0.96-0.98), lower educational level (OR 0.41, 95%CI 0.26-0.64) and being unemployed (OR 0.57, 95%CI 0.42-0.77) were negatively associated with reaching WHO recommendations.
    CONCLUSIONS: A significant proportion of patients with CHD did not reach the WHO physical activity recommendations. There was a large variation in physical activity level by country of origin. Based on identified predictors, vulnerable patients may be identified and offered specific behavioral interventions.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    Cognitive function decline secondary to cardiovascular disease has been reported. However, little is known about the impact of coronary artery disease (CAD) on the aging brain macrostructure or whether exercise training, in the context of cardiovascular rehabilitation, can affect brain structure following a coronary event. This study employed voxel-based morphometry of high resolution structural MRI images to investigate; 1) changes in regional gray matter volume (GMV) in CAD patients compared to age-matched controls, and 2) the effects of a six-month exercise-based cardiovascular rehabilitation program on CAD-related GMV decline. Compared to controls, significant decreases in regional GMV were found in the superior, medial and inferior frontal gyrus; superior and inferior parietal gyrus; middle and superior temporal gyrus and in the posterior cerebellum of CAD patients. Cardiovascular rehabilitation was associated with the recovery of regional GMV in the superior frontal gyrus, superior temporal gyrus and posterior cerebellum of the CAD patients as well as the increase in GMV in the supplementary motor area. Total and regional GMV correlated with fitness level, defined by the maximal oxygen consumption (VO2max), at baseline but not after cardiovascular rehabilitation. This study demonstrates that cardiovascular disease can adversely affect age-related decline in GMV; and that these disease-related effects could be mitigated by moderate levels of exercise training as part of cardiovascular rehabilitation.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

公众号