Abstract：
:Chronic dynamic (aerobic) exercise decreases central arterial stiffness, whereas chronic resistance exercise evokes the opposite effect. Nevertheless, there is little information available on the effects of acute bouts of exercise. Also, there is limited data showing an increase of central arterial stiffness during acute mental stress. This study aimed to determine the effect of acute mental and physical (static and dynamic exercise) stress on indices of central arterial stiffness. Fifteen young healthy volunteers were studied. The following paradigms were performed: (1) 2 min of mental arithmetic, (2) short bouts (20 s) of static handgrip at 20 and 70% of maximal voluntary contraction (MVC), (3) fatiguing handgrip at 40% MVC and (4) incremental dynamic knee extensor exercise. Central aortic waveforms were assessed using SphygmoCor software. As compared to baseline, pulse wave transit time decreased significantly for all four interventions indicating that central arterial stiffness increased. During fatiguing handgrip there was a fall in the ratio of peripheral to central pulse pressure from 1.69+/-0.02 at baseline to 1.56+/-0.05 (P<0.05). In the knee extensor protocol a non-significant trend for the opposite effect was noted. The augmentation index increased significantly during the arithmetic, short static and fatiguing handgrip protocols, whereas there was no change in the knee extensor protocol. We conclude that (1) during all types of acute stress tested in this study (including dynamic exercise) estimated central stiffness increased, (2) during static exercise the workload posed on the left ventricle (expressed as change in central pulse pressure) is relatively higher than that posed during dynamic exercise (given the same pulse pressure change in the periphery).
journal_name
J Hum Hypertensjournal_title
Journal of human hypertensionauthors
Lydakis C,Momen A,Blaha C,Gugoff S,Gray K,Herr M,Leuenberger UA,Sinoway LIdoi
10.1038/jhh.2008.4subject
Has Abstractpub_date
2008-05-01 00:00:00pages
320-8issue
5eissn
0950-9240issn
1476-5527pii
jhh20084journal_volume
22pub_type
杂志文章abstract：:While the arterial tree is exposed to increased pressure flow, paradoxically the complications of hypertension are mainly thrombotic rather than haemorrhage. Improved techniques have allowed the identification of haemorrheological indices, coagulation factors and markers of arteriolar endothelial and platelet dysfunct...
journal_title：Journal of human hypertension
pub_type： 杂志文章,评审
doi：
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abstract：:Coronary heart disease (CHD) is still relatively uncommon in the black population of South Africa. We embarked on a study to determine the prevalence of risk factors leading to CHD in the black population of Durban. The study sample was selected from patients attending a dental clinic at a hospital. A total of 458 Zul...
journal_title：Journal of human hypertension
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/jhh.2008.75
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/jhh.2015.102
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journal_title：Journal of human hypertension
pub_type： 杂志文章,评审
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abstract：:Published reports of 30 separate sets of analyses from 29 observational studies relating dietary intake of magnesium to blood pressure (BP) were identified through a comprehensive search using MEDLINE and BIDS-EMBASE. Three studies were prospective, 24 cross-sectional (25 reports), of which four also contained a longi...
journal_title：Journal of human hypertension
pub_type： 杂志文章,meta分析
doi：10.1038/sj.jhh.1000641
更新日期：1998-07-01 00:00:00
abstract：:Inconsistent results have been reported regarding the association of the angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism and hypertension. Recent studies of population-based samples of three different areas in Japan presented conflicting results regarding this association. We, thus, investiga...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/sj.jhh.1001601
更新日期：2003-10-01 00:00:00
abstract：:Nineteen patients with essential hypertension on regular treatment with nifedipine tablets 20 mg twice daily and whose DBP was < 95 mmHg on at least two occasions two weeks apart were entered in a double-blind randomised crossover study of three weeks treatment with nifedipine coat core (new formulation) either as 30 ...
journal_title：Journal of human hypertension
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1994-04-01 00:00:00
abstract：:The commonly used methods of estimating the 24-h urinary sodium (UNa) and urinary potassium (UK) from spot urine (SU) are the Kawasaki method (K-method), INTERSALT method (I-method), and Tanaka method (T-method), but the method that is suitable for use in the general Chinese population is still uncertain. We aimed to ...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/s41371-019-0274-z
更新日期：2020-02-01 00:00:00
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：
更新日期：1990-06-01 00:00:00
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：
更新日期：1996-09-01 00:00:00
abstract：:The genetic mechanisms responsible for the formation of adrenocortical adenomas which autonomously produce aldosterone are largely unknown. The adrenal renin-angiotensin system has been implicated in the pathophysiology of these tumours. Angiotensin-converting enzyme (ACE) catalyses the generation of angiotensin II, a...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：
更新日期：1996-12-01 00:00:00
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/jhh.2015.80
更新日期：2016-05-01 00:00:00
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journal_title：Journal of human hypertension
pub_type： 杂志文章,多中心研究
doi：10.1038/jhh.2008.102
更新日期：2009-01-01 00:00:00
abstract：:In phaeochromocytoma, sudden hypertensive or arrhythmic episodes are believed to be associated with excessive free catecholamine excretion. However, lack of correlation between blood pressure (BP) and plasma catecholamine levels has been reported. Therefore an attempt was made to assess the sympathovagal balance befor...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Our study was aimed to assess the clinical correlates of different degrees of renal dysfunction in a wide group of non-diabetic hypertensive patients, free from cardiovascular (CV) complications and known renal diseases, participating to the REDHY (REnal Dysfunction in HYpertension) study. A total of 1856 hypertensive...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/jhh.2009.41
更新日期：2010-01-01 00:00:00
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/jhh.2010.29
更新日期：2011-01-01 00:00:00
abstract：:Hypertension is a known risk factor in the genesis of coronary artery disease. However, the effect of pre-existing hypertension on the long-term mortality in patients with established coronary heart disease is not clear. The present cohort study analysed the influence of baseline mild to moderate treated hypertension ...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：
更新日期：1992-08-01 00:00:00
abstract：:Pulmonary edema is a potentially life-threatening complication of preeclampsia, but only few studies have looked at possible risk factors. This study assessed the association between various potential risk factors and the development of pulmonary edema. An age-matched case-control design with hospital records from a t...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/s41371-020-0300-1
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abstract：:Studies on the possible association between blood pressure and blood lead have reached divergent conclusions. In a previous meta-analysis, a doubling of the blood lead concentration was associated with a 1.0/0.6 mm Hg increase in systolic and diastolic blood pressure (BP). This meta-analysis updates the analysis origi...
journal_title：Journal of human hypertension
pub_type： 杂志文章,meta分析
doi：10.1038/sj.jhh.1001300
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journal_title：Journal of human hypertension
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doi：10.1038/jhh.2013.53
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journal_title：Journal of human hypertension
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journal_title：Journal of human hypertension
pub_type： 杂志文章,评审
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更新日期：2014-07-01 00:00:00
abstract：:Elevated visit-to-visit blood pressure variability (BPV), independent of mean BP, has been associated with cardiovascular events. However, its impact after ST-elevation myocardial infarction (STEMI) has not been established. This study aimed to investigate the prognostic impact of BPV on patients after STEMI. We analy...
journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：10.1038/s41371-019-0176-0
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journal_title：Journal of human hypertension
pub_type： 杂志文章
doi：
更新日期：1993-06-01 00:00:00
abstract：:Microalbuminuria (urinary albumin excretion equal to 30-300 mg/24 h) is a reliable indicator of premature cardiovascular mortality in diabetic patients and in the general population. In insulin-dependent and non-insulin-dependent diabetes mellitus microalbuminuria is a marker of initial diabetic nephropathy and predic...
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pub_type： 杂志文章,评审
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abstract：:An evaluation of the 'Accutracker', a new lightweight ambulatory blood pressure monitor, has been carried out in 14 subjects. Using a cross-over study design, BP readings obtained by the monitor were compared with BP measurements carried out in the opposite arm by a random zero sphygmomanometer. Both the systolic and ...
journal_title：Journal of human hypertension
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1989-12-01 00:00:00
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doi：10.1038/sj.jhh.1001899
更新日期：2005-10-01 00:00:00
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journal_title：Journal of human hypertension
pub_type： 杂志文章
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