Abstract:
:A vasomotor reflex triggered by a rapid and deep inspiration causes arteriolar vasoconstriction and a transient decrease in skin blood flow in most people. This is the inspiratory gasp vascular response (IGVR). The most common site of its measurement has been on the palmar or plantar aspect of the digits and little is known about its features in skin with few or any arterial venous anastomoses (AVAs). A basic aspect of this response that has not been systematically studied is its associated with multiple sequential inspiratory gasps (IG) in the same person. Such information would provide insight as to whether there is any form of adaptation or temporal dependence and may serve as a basis for judging response variability. Thus, the present study was undertaken to characterize the normal pattern of responses in finger dorsum skin in a group of 28 normal persons who performed 21 sequential, uniformly spaced IG, over an interval of 42 min. The results show that IGVR measured on the finger dorsum have a magnitude comparable with that obtained on finger pulp, in spite of the relative dearth of sympathetically controlled AVAs on the dorsum. It was also found that the magnitude of the IGVR displays little if any tendency for sequential adaptation or temporal trending. Finally, the results indicate that the largest component of response variability is associated with subject-to-subject differences as compared with sequential variability within subjects.
journal_name
Clin Physiol Funct Imagingjournal_title
Clinical physiology and functional imagingauthors
Mayrovitz HN,Groseclose EEdoi
10.1046/j.1475-097x.2002.00404.xkeywords:
subject
Has Abstractpub_date
2002-01-01 00:00:00pages
49-54issue
1eissn
1475-0961issn
1475-097Xjournal_volume
22pub_type
杂志文章abstract:SUMMARY:Increasing evidence suggests that local blood flow should be monitored during microdialysis (MD) as the recovery of analytes is affected by local blood flow. At present ethanol clearance is the standard technique for this purpose, but it is not functional at very low perfusion velocities. Here, we introduce a t...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2009.00904.x
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:We investigated if image- and diagnostic quality in SPECT MPI could be maintained despite a reduced acquisition time adding Depth Dependent Resolution Recovery (DDRR) for image reconstruction. Images were compared with filtered back projection (FBP) and iterative reconstruction using Ordered Subsets Expect...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12354
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:The BodyMetrix(®) BX-2000 Ultrasound device (ULTRA) shows prowess in being an effective alternative to the expense and technicality of dual-energy X-ray absorptiometry (DXA). However, this technique has not been investigated using a seven-site methodology. SUBJECT/OBJECTIVE:To employ a cross-over design to ...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12150
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND:Bronchial hyperresponsiveness (BHR) is common in bakery workers. The relation between bronchial responsiveness measured with a tidal breathing method and smoking, airway symptoms, IgE-sensitization, nasal indices of inflammation and flour dust exposure have been studied with bronchial responsiveness expresse...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1475-097X.2007.00755.x
更新日期:2007-09-01 00:00:00
abstract::Assessing inspiratory muscle deoxygenation and blood flow can provide insight into anaerobic stress, recruitment strategies and mechanisms of inspiratory muscle limitation. Therefore, this review aimed to synthesize measurements of inspiratory muscle oxyhaemoglobin (O2 Hb), deoxyhaemoglobin (HHb), blood volume and flo...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章,评审
doi:10.1111/cpf.12473
更新日期:2018-07-01 00:00:00
abstract::The purpose of this state-of-the-art review was to examine the effects of exercise training on arterial stiffness (AS) in patients with coronary artery disease (CAD). A PubMed and SCOPUS literature search was conducted up to March of 2013. Two authors performed the selection of the studies and the subsequent data extr...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章,评审
doi:10.1111/cpf.12093
更新日期:2014-07-01 00:00:00
abstract::Planar lung ventilation/perfusion scintigraphy (V/P(PLANAR)) is a standard method for diagnosis of pulmonary embolism (PE). The goals of this study were to test whether the diagnostic information of ventilation/perfusion tomography (V/P(SPET)) applied in clinical routine might enhance information compared with V/P(PLA...
journal_title:Clinical physiology and functional imaging
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1475-097X.2004.00546.x
更新日期:2004-09-01 00:00:00
abstract:INTRODUCTION:The mechanism of immersion pulmonary oedema occurring in healthy divers is a matter of debate. Among consecutive injured divers admitted to our hyperbaric centre, we analysed prospective data about pulmonary oedema. METHOD:A total of 22 divers suffering from immersion pulmonary oedema without cardiac dise...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2010.00922.x
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:Many patients with pulmonary hypertension (PH) have symptoms of angina without evidence of occlusive coronary artery disease. For the first time, this study addresses the influence of progressively increasing pulmonary artery pressure (PAP) on left anterior descending artery flow in a rat model of PH. The ro...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2011.01049.x
更新日期:2011-11-01 00:00:00
abstract:PURPOSE:The purpose of this study was to analyse gender differences in neuromuscular behaviour of the gastrocnemius and vastus lateralis during the take-off phase of a countermovement jump (CMJ), using direct measures (ground reaction forces, muscle activity and dynamic ultrasound). METHODS:Sixty-four young adults (ag...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12369
更新日期:2017-11-01 00:00:00
abstract::The renin-angiotensin aldosterone system (RAAS) is associated with diverse physiological responses and adaptations to exercise. The angiotensin converting enzyme (ACE) 2 has vasodilatory effects, which might be associated with the blood pressure (BP) responses to acute exercise. The aim of this study was to investigat...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12400
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:Air-displacement plethysmography (ADP) systems can either measure or predict lung volume (LV) in their test trials. The repeatability of the predicted and the measured value is an important factor in the accuracy of the final test result. OBJECTIVE:Compare the variability and accuracy of ADP tests using pre...
journal_title:Clinical physiology and functional imaging
pub_type: 历史文章,杂志文章
doi:10.1111/cpf.12129
更新日期:2015-09-01 00:00:00
abstract::The aim of this study was to examine and to compare alterations in the secretion of atrial natriuretic peptide (ANP) during different exercise-testing protocols in moderately trained men. Fifteen healthy male physical education students were studied (mean age 22·3 ± 2·5 years, training experience 12·3 ± 2·5 years, hei...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2010.00971.x
更新日期:2011-01-01 00:00:00
abstract::The aim of this study was to investigate the effect of repeated cycling sprints on power profiles while assessing upper body muscle contraction. Eighteen physically active participants performed 8 × 10 s repeated sprints while muscle activity was recorded via surface electromyography (sEMG) from the brachioradialis (B...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12159
更新日期:2015-07-01 00:00:00
abstract::The purpose was to investigate the acute effects of blood flow restriction (BFR) on arterial and venous hemodynamic parameters. Nine participants completed a 10-min time control (resting condition) and then a lower body BFR protocol. The protocol was five, 5-min bouts of restrictive cuff inflation with 3-min of deflat...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2012.01157.x
更新日期:2013-01-01 00:00:00
abstract::There is no general agreement on the spirometric definition of chronic obstructive pulmonary disease (COPD). The global initiative for obstructive lung disease recommends a fixed ratio between forced expiratory volume in one-second (FEV1 ) and forced vital capacity (FVC) of <0·7 (FR) for the diagnosis of COPD. Europea...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12294
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:This retrospective study aimed to determine the diagnostic performance of exercise-induced ST response in relation to findings by myocardial perfusion single photon emission computed tomography (MPS), with focus on gender differences, in patients with suspected or established stable ischemic heart disease. ...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12483
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Abdominal aortic aneurysm (AAA), a localized dilatation of the abdominal aorta, has a prevalence of about 1.5%-3% among 65- to 70-year-old males in Europe. AAA confers an increased risk of developing major cardiovascular events in addition to the risk of aneurysm rupture. The aim of this study was to evaluat...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12667
更新日期:2021-01-01 00:00:00
abstract::During recent years, the radial movement of the arterial wall has been extensively studied, and measurements of the radial movement are now an important tool in cardiovascular research for characterizing the mechanical properties of the arterial wall. In contrast, the longitudinal movement of vessels has gained little...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1046/j.1475-097x.2003.00504.x
更新日期:2003-09-01 00:00:00
abstract:AIMS:To investigate the association between glucose abnormalities and left ventricular (LV) function assessed by tissue Doppler imaging (TDI) in patients with previous history of myocardial infarction and without known diabetes mellitus. PATIENTS AND METHODS:In a cross-sectional study, 123 patients, aged 31-80 years, ...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2007.00717.x
更新日期:2007-01-01 00:00:00
abstract::The grey level of co-occurrence matrix (GLCM) is a texture analysis approach accounting for spatial distribution of the pixels from an image and can be a promising method for exercise-induced muscle damage (EIMD) studies. We followed up the time changes of two GLCM texture parameters and echo intensity (EI) on ultraso...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12441
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Heatstroke is a serious condition and clinical studies indicate that vascular stroke increases with excessive consumption of alcohol (ethanol). It was our objective to test the influence of ethanol on cerebral perfusion at normal and higher temperatures. METHODS:Recording of isometric tension in rabbit caro...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2007.00733.x
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND:In MRI studies of carotid plaques, ultrasound is used to find plaques, which are later imaged using MRI. The performance in plaque detection has not been compared between the modalities. The aim of the current study was to compare the performance of MRI and ultrasound in detecting carotid artery plaques and ...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12415
更新日期:2018-03-01 00:00:00
abstract::Atherosclerosis is a growing health challenge globally, and despite our knowledge of the disease has increased over the last couple of decades, many unanswered questions remain. As molecular imaging can be used to visualize, characterize and measure biological processes at the molecular and cellular levels in living s...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章,评审
doi:10.1111/cpf.12017
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:(i) To evaluate the feasibility of tracer kinetics analysis of dynamic contrast-enhanced (DCE) CT and T2-weighted MR data of squamous cell carcinoma (SCCA) of the upper aerodigestive tract. (ii) To compare functional parameters derived by both modalities and examine the interchangeability of them as well as the...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2009.00876.x
更新日期:2009-09-01 00:00:00
abstract::The purpose of this study was to investigate the physiological changes of the cardiovascular system in response to whole body vibration during quiet standing and identify whether there is a greater influence on the central or peripheral cardiovascular system. Twenty healthy participants (12 male and 8 female) were ass...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/cpf.12103
更新日期:2014-09-01 00:00:00
abstract:AIMS:Cigarettes and Swedish snuff contain nicotine, which influence the cardiovascular system. Cigarette smoke has been shown to give an acute impairment in diastolic heart parameters. The systolic and diastolic heart function in snuff users is not thoroughly enough investigated. The aim of this study was to investigat...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2011.01062.x
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:Cardiac magnetic resonance imaging (CMR) is a promising method for detecting coronary artery disease (CAD). The first reports of new diagnostic techniques indicated generally unrealistic diagnostic performance relying on retrospectively observed cut-off values of quantitative parameters. Although visual anal...
journal_title:Clinical physiology and functional imaging
pub_type: 临床试验,杂志文章
doi:10.1111/j.1475-097X.2009.00908.x
更新日期:2010-03-01 00:00:00
abstract::In this study, we examined possible differences in brain activation between smooth pursuit and optokinetic reflexive (OKR) eye movements using functional magnetic resonance imaging (fMRI). Eighteen healthy subjects performed two different eye movement paradigms. In the first paradigm, smooth pursuit eye movements were...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章
doi:10.1111/j.1475-097X.2009.00858.x
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Heart rate variability (HRV) reflects the balance between cardiac parasympathetic and sympathetic autonomic influences. Reduced HRV has adverse prognostic implications. The time course for changes in HRV over prolonged periods of time and the influence of an acute coronary event on HRV are not well establish...
journal_title:Clinical physiology and functional imaging
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1475-097X.2009.00857.x
更新日期:2009-05-01 00:00:00