Abstract:
:Central hypovolemia induced by orthostatic loading causes reno-vascular changes that can lead to orthostatic intolerance. In this study, we investigated volume regulating hormonal responses and reno-vascular changes in male and female subjects as they underwent central hypovolemia, induced by graded lower body negative pressure (LBNP). Aquaporin-2 (AQP2) excretion was measured as a biomarker for the renal system response to vasopressin. 37 young healthy subjects (n = 19 males; n = 18 females) were subjected to graded LBNP until - 40 mmHg LBNP. Under resting conditions, males had significantly higher copeptin (a stable peptide derived from vasopressin) levels compared with females. Adrenocorticotropin (ACTH), adrenomedullin (ADM), vasopressin (AVP) and brain natriuretic peptide (BNP) were not affected by our experimental protocol. Nevertheless, an analysis of ADM and BNP with the data normalized as percentages of the baseline value data showed an increase from baseline to 10 min after recovery in the males in ADM and in the females in BNP. Analysis of BNP and ADM raises the possibility of a preferential adaptive vascular response to central hypovolemia in males as shown by the normalized increase in ADM, whereas females showed a preferential renal response as shown by the normalized increase in BNP. Furthermore, our results suggest that there might be a difference between men and women in the copeptin response to alterations in orthostatic loading, simulated either using LBNP or during posture changes.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Goswami N,Reichmuth J,Di Mise A,Brix B,Roessler A,Centrone M,Ranieri M,Russo A,De Santo NG,Tamma G,Sasso FC,Valenti Gdoi
10.1007/s00421-018-4053-2subject
Has Abstractpub_date
2019-03-01 00:00:00pages
633-643issue
3eissn
1439-6319issn
1439-6327pii
10.1007/s00421-018-4053-2journal_volume
119pub_type
杂志文章abstract::This study aimed to investigate the involvement of cerebral oxygenation in limitation of maximal exercise. We hypothesized that O2 supplementation improves physical performance in relation to its effect on cerebral oxygenation during exercise. Eight untrained men (age 27 ± 6 years; VO2 max 45 ± 8 ml min(-1) kg(-1)) pe...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-013-2637-4
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:We investigated the effects of mild hypohydration compared to euhydration on the cooling efficacy of cold-water immersion (CWI). METHODS:Fourteen participants (eight male, six female; age 26 ± 5 years; ht 1.77 ± 0.08 m; wt 72.2 ± 8.8 kg; 20.6 ± 7.4 % body fat) completed one euhydrated (EU) trial followed by on...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-016-3329-7
更新日期:2016-04-01 00:00:00
abstract::Regular physical activity is recognized as a non-pharmacological treatment of genetic obesity and type-II diabetes, and based on the "anti-inflammatory" effects of exercise, it has been also proposed for improving the "chronic low-grade inflammation" in metabolic syndrome (MS). The aim of the present work was to evalu...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1140-4
更新日期:2009-11-01 00:00:00
abstract::The purpose of the present article is to identify the most appropriate method of scaling VO2max for differences in body mass when assessing the energy cost of time-trial cycling. The data from three time-trial cycling studies were analysed (N = 79) using a proportional power-function ANCOVA model. The maximum oxygen u...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-005-1321-8
更新日期:2005-08-01 00:00:00
abstract:PURPOSE:The purpose of the present study was to evaluate the effects of superimposed electromyostimulation (E) during cycling on the acute hormonal and metabolic response, as E might be a useful tool to intensify endurance training without performing high external workloads. METHODS:Thirteen subjects participated in t...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-014-2952-4
更新日期:2014-11-01 00:00:00
abstract::Duchenne muscular dystrophy (DMD) is caused by the absence of a functional dystrophin protein and is modeled by the mdx mouse. The mdx mouse suffers an early necrotic bout in the hind limb muscles lasting from approximately 4 to 7 weeks. The purpose of this investigation was to determine the extent to which dystrophin...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-011-1906-3
更新日期:2011-11-01 00:00:00
abstract::Whole body vibration (WBV) is a novel modality that has been demonstrated to enhance muscular and cardiovascular functions reported to increase fibrinolytic activity. The purpose of this study was to examine the fibrinolytic response to WBV and exercise in men. Twenty healthy males (23.8 ± 0.9 years, 25.6 ± 0.2 kg m(-...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-010-1590-8
更新日期:2010-11-01 00:00:00
abstract::We compared the cardiorespiratory response and muscle recruitment [as determined by electromyography (EMG)] of 37 McArdle patients [19 males, 37.4 ± 2.8 years, body mass index (BMI): 25.1 ± 4.7 kg m(-2)] and 33 healthy controls (18 males, 36.4 ± 10.0 years, BMI: 25.7 ± 3.8 kg m(-2)) during cycle-ergometer exercise (an...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-010-1585-5
更新日期:2010-11-01 00:00:00
abstract::Limited evidence suggests renin-angiotensin-aldosterone system (RAAS) polymorphisms alter the blood pressure (BP) response to aerobic exercise training. We examined if RAAS polymorphisms influenced postexercise hypotension in men with high normal to Stage 1 hypertension. Forty-seven men (44.2+/-1.4 years, 145.1+/-1.6/...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-006-0142-8
更新日期:2006-05-01 00:00:00
abstract::To investigate the possible role of adrenaline in the response of interleukin (IL)-6 and IL-1 receptor antagonists (ra) to extreme physiological conditions such as trauma and exercise, we examined the concentrations in the plasma of these cytokines during an adrenaline infusion. Given the fact that HIV infected patien...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s004210000257
更新日期:2000-09-01 00:00:00
abstract::Intense exercise is known to cause temporary impairments in immune function. Few studies, however, have investigated the effects of intense competitive exercise on immunoendocrine variables in elite team sport athletes. The aim of this study was to evaluate the time course of changes in selected immunoendocrine and in...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1200-9
更新日期:2010-01-01 00:00:00
abstract::Since playing wind instrument impedes normal respiratory functions, its effect on expiratory and blood gases as well as on cardiac function was investigated. In 15 skilled clarinettists expiratory PO(2) and PCO(2) were measured in gas drawn from a modified clarinet barrel when playing a composition (Robert Schumann's ...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-010-1576-6
更新日期:2010-12-01 00:00:00
abstract::This study contrasted the effects of load characteristics on coordinative strategies between postural holding and position tracking. Fifteen healthy adults conducted postural holding and sinusoidal tracking with the index finger while manipulated loads (0, 50, and 100 g) were superimposed on an outstretched arm. Oscil...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-0981-1
更新日期:2009-04-01 00:00:00
abstract::Previous investigations show that metabolic syndrome (MetSyn) causes sympathetic hyperactivation. Symptoms of anxiety and mood disturbance (AMd) provoke sympatho-vagal imbalance. We hypothesized that AMd would alter even further the autonomic function in patients with MetSyn. Twenty-six never-treated patients with Met...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-012-2476-8
更新日期:2013-03-01 00:00:00
abstract:PURPOSE:The purpose of this study was to investigate the effects of a fatigue-inducing bout of submaximal, intermittent isometric contractions on the electromechanical delay (EMD) of the leg extensors and flexors in young and old men. METHODS:Twenty young (mean ± SD: age = 25 ± 2.8 years) and sixteen old (age = 70.8 ±...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-013-2675-y
更新日期:2013-09-01 00:00:00
abstract::High-intensity exercise shares similarities with acute phase responses of inflammatory diseases. We investigated the influences of acute exercise on inflammatory markers, plasma pentraxin3 (PTX3) and serum high-sensitive C-reactive protein (CRP) (hsCRP). Nine healthy male subjects (41 ± 3 years old) participated. Each...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-010-1572-x
更新日期:2010-11-01 00:00:00
abstract::Sildenafil and epoprostenol are effective therapies in pulmonary arterial hypertension (PAH). Both drugs increase cardiac output, which has been in part attributed to improved right ventricular (RV) contractility. We therefore used tissue Doppler imaging (TDI) to test whether sildenafil and epoprostenol might differen...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-011-2085-y
更新日期:2012-04-01 00:00:00
abstract:PURPOSE:The aim of this study was to determine the effects of high-intensity aerobic interval training (AIT) on exercise hemodynamics in metabolic syndrome (MetS) volunteers. METHODS:Thirty-eight, MetS participants were randomly assigned to a training (TRAIN) or to a non-training control (CONT) group. TRAIN consisted ...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-017-3697-7
更新日期:2017-10-01 00:00:00
abstract::Protective clothing (PPC) can have negative effects on worker performance. Currently little is known about the metabolic effects of PPC and previous work has been limited to a few garments and simple walking or stepping. This study investigated the effects of a wide range of PPC on energy consumption during different ...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-008-0924-2
更新日期:2009-02-01 00:00:00
abstract::An inverse relationship has been shown between running and cycling exercise economy and maximum oxygen uptake (VO2max). The purposes were: 1) determine the relationship between walking economy and VO2max; and 2) determine the relationship between muscle metabolic economy and muscle oxidative capacity and fiber type. S...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-005-1370-z
更新日期:2005-08-01 00:00:00
abstract::The object of this study was to assess the effects of magnitopuncture applied to Dazhui (DU14) point and Neiguan (PC6) points on sympathetic and parasympathetic nerve activities by power spectrum analysis of heart rate variability in healthy drivers during simulated driving. Using power spectrum analysis, the low freq...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00421-002-0747-5
更新日期:2003-01-01 00:00:00
abstract:PURPOSE:Walking is a complex locomotor process that involves both spinal cord reflexes and cortical integration of peripheral nerve input. Maintaining an upright body position requires not only neuromuscular activity but also cardiovascular regulation. We postulated that plantar mechanical stimulation might modulate au...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-016-3479-7
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:To examine the effect of acute quercetin (Q) ingestion on neuromuscular function, biomarkers of muscle damage, and rate of perceived exertion (RPE) in response to an acute bout of resistance training. METHODS:10 young men (22.1 ± 1.8 years, 24.1 ± 3.1 BMI) participated in a randomized, double-blind, crossover ...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-018-3834-y
更新日期:2018-05-01 00:00:00
abstract::The unwanted variability in dynamometric measurements limits accurate interpretation of these measurements. Although unpredictable variability in measurements has been identified repeatedly, few studies have investigated strategies for reducing measurement error. This study investigated the effect of preload on variab...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-001-0557-1
更新日期:2002-02-01 00:00:00
abstract::The polymorphisms of endothelial nitric oxide synthase (eNOS) are associated with reduced eNOS activity. Aerobic exercise training (AEX) may influence resting nitric oxide (NO) production, oxidative stress and blood pressure. The purpose of this study was to investigate the effect of AEX on the relationship among bloo...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-010-1568-6
更新日期:2010-11-01 00:00:00
abstract::This study compared the first and second exercise bouts consisting of electrically evoked isometric contractions for muscle damage profile. Nine healthy men (31 +/- 4 years) had two electrical muscle stimulation (EMS) bouts separated by 2 weeks. The knee extensors of one leg were stimulated by biphasic rectangular pul...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00421-009-1278-0
更新日期:2010-03-01 00:00:00
abstract:PURPOSE:This study aimed to evaluate the accuracy of a novel approach for predicting the one-repetition maximum (1RM). The prediction is based on the force-velocity and load-velocity relationships determined from measured force and velocity data collected during resistance-training exercises with incremental submaximal...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-016-3457-0
更新日期:2016-10-01 00:00:00
abstract::Limited research documents if new and existing interactive computer gaming "exergaming" increase energy expenditure and cardio-respiratory costs comparable to common exercise modalities. To address this, healthy male volunteers (n = 15) completed six by 12-min test elements: PlayStation2 (PS2(hand)), Nintendo Wii boxi...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-010-1773-3
更新日期:2011-07-01 00:00:00
abstract::A routine method to determine total haemoglobin mass (tHb) in clinical practice and sports medicine is non-existent. Radioactive tracers or other dilution procedures like the common CO-rebreathing method (Proc(com)) are impractical, the latter in particular because of the relatively long time of respiration. According...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-005-0050-3
更新日期:2005-12-01 00:00:00
abstract:PURPOSES:To investigate longitudinally (1) the contribution of morphological covariates to explaining the development of maximum cardiac output ([Formula: see text] max) and maximum arteriovenous oxygen difference (a-vO2 diff max), (2) sex differences in [Formula: see text] max and a-vO2 diff max once age, maturity sta...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-020-04300-0
更新日期:2020-02-01 00:00:00