Mechanical behaviour of rat skeletal muscle during fatiguing stretch-shortening cycles.

abstract：:All eukaryotic cells utilize oxidative phosphorylation to maintain their high-energy phosphate stores. Mitochondrial oxygen consumption is required for ATP generation, and cell survival is threatened when cells are deprived of O(2). Consequently, all cells have the ability to sense O(2), and to activate adaptive proce...

journal_title：Experimental physiology

authors： Guzy RD,Schumacker PT

更新日期：2006-09-01 00:00:00

abstract：:A great deal of knowledge exists regarding neural control of myocardial function in the rat. Most of the studies addressing this issue were conducted either under general anaesthesia or in isolated hearts in vitro. Our principal aim was to provide a detailed quantitative description of mechanisms controlling cardiac c...

journal_title：Experimental physiology

authors： Nalivaiko E,Antunes VR,Paton JF

更新日期：2010-01-01 00:00:00

abstract：:The effect of resistance training on arterial stiffening is controversial. We tested the hypothesis that resistance training would not alter central arterial compliance. Young healthy men (age, 23 +/- 3.9 (mean +/- s.e.m.) years; n = 28,) were whole-body resistance trained five times a week for 12 weeks, using a rotat...

journal_title：Experimental physiology

authors： Rakobowchuk M,McGowan CL,de Groot PC,Bruinsma D,Hartman JW,Phillips SM,MacDonald MJ

更新日期：2005-07-01 00:00:00

abstract：:Brain blood vessels contain muscarinic receptors that are important for cerebral blood flow (CBF) regulation, but whether a cholinergic receptor mechanism is involved in the exercise-induced increase in cerebral perfusion or affects cerebral metabolism remains unknown. We evaluated CBF and cerebral metabolism (from ar...

journal_title：Experimental physiology

authors： Seifert T,Fisher JP,Young CN,Hartwich D,Ogoh S,Raven PB,Fadel PJ,Secher NH

更新日期：2010-10-01 00:00:00

abstract：:The effects of hypotonic solutions on intracellular Ca2+ were determined on primary cultures of human detrusor smooth muscle cells. In the presence of external Ca2+, changing from a solution containing 290 mosmol l-1 to one containing 240 mosmol l-1 (80% normal tonicity) activated a rise in intracellular Ca2+. If the ...

journal_title：Experimental physiology

authors： Chambers P,Neal DE,Gillespie JI

更新日期：1997-07-01 00:00:00

abstract：:Chronic heart failure (CHF) impairs muscle O2 delivery (QO2) and, at a given O2 uptake (VO2), lowers microvascular O2 pressures (PmvO2: determined by the QO2-to-VO2 ratio), which may impair recovery of high-energy phosphates following exercise. Because CHF preferentially decreases QO2 to slow-twitch muscles, we hypoth...

journal_title：Experimental physiology

authors： McDonough P,Behnke BJ,Musch TI,Poole DC

更新日期：2004-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? What are the cellular and molecular determinants of increased risk for cardiovascular disease from prolonged sitting? What is the main finding and its importance? Prolonged sitting, independent of calf raise interruption strategies, decreases microparticle counts...

journal_title：Experimental physiology

authors： Evans WS,Hanson ED,Shill DD,Landers-Ramos RQ,Stoner L,Willey Q,Credeur DP,Prior SJ

更新日期：2020-08-01 00:00:00

abstract：:Experiments were performed to investigate, in the normal and acutely inflamed rabbit knee joint, the role of prostaglandins in the regulation of joint blood flow, measured by laser Doppler flowmetry, as well as their modulation of sympathetic vasoconstriction. Close intra-arterial injection of prostaglandin E2 (PGE2) ...

journal_title：Experimental physiology

authors： Najafipour H,Ferrell WR

更新日期：1994-01-01 00:00:00

abstract：:Power spectral analysis of heart rate variability has often been used to assess cardiac autonomic function; however, the relationship of low-frequency (LF) power of heart rate variability to cardiac sympathetic tone has been unclear. With or without adjustment for high-frequency (HF) power, total power or respiration,...

journal_title：Experimental physiology

authors： Goldstein DS,Bentho O,Park MY,Sharabi Y

更新日期：2011-12-01 00:00:00

abstract：:Lower body negative pressure (LBNP) reduces central venous pressure (CVP) and cardiac output. The elderly are reported to have a limited capacity to increase cardiac output by increasing heart rate (HR), are especially dependent on end diastolic volume to maintain stroke volume and therefore should be especially vulne...

journal_title：Experimental physiology

authors： van Hoeyweghen R,Hanson J,Stewart MJ,Dethune L,Davies I,Little RA,Horan MA,Kirkman E

更新日期：2001-05-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Does the combination of methazolamide and theophylline reduce symptoms of acute mountain sickness (AMS) and improve aerobic performance in acute hypobaric hypoxia? What is the main finding and its importance? The oral combination of methazolamide (100 BID) and th...

journal_title：Experimental physiology

authors： Subudhi AW,Evero O,Reitinger J,Davis C,Gronewold J,Nichols AJ,Van-Houten SJ,Roach RC

更新日期：2021-01-01 00:00:00

abstract：:Changes in tension of slow motor units in the medial gastrocnemius muscle of the rat were measured and compared in three fatigue tests, each of 4 min duration. In one of these tests motor unit tetani were evoked by repeated trains of stimuli of the standard frequency, 40 Hz, while in other tests frequencies of 20 and ...

journal_title：Experimental physiology

authors： Celichowski J,Grottel K

更新日期：1995-11-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Calcium is an important second messenger in eccrine sweating; however, whether modulation of extracellular Ca(2+) and Ca(2+) entry has the capacity to modulate sweat rate in non-glabrous human skin has not been explored. What is the main finding and its importanc...

journal_title：Experimental physiology

authors： Metzler-Wilson K,Sammons DL,Ossim MA,Metzger NR,Jurovcik AJ,Krause BA,Wilson TE

更新日期：2014-02-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Clinical studies suggest that obesity 'protects' against osteoporosis. However, these studies used only bone densitometry and assessed only one bone site, which is insufficient to enable conclusions to be drawn about the response of the whole skeleton. Furthermor...

journal_title：Experimental physiology

authors： Lacerda DR,Serakides R,de Melo Ocarino N,Ferreira AV,Moraes MM,Boeloni JN,Silva JF,de Oliveira MC,de Barcellos LA,Rodrigues LO,Soares DD

更新日期：2015-01-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? We modelled the alveolar pathway during breath holding on the hypothesis that it follows a hypoventilation loop on the O2 -CO2 diagram. What is the main finding and its importance? Validation of the model was possible within the range of alveolar gas compositions...

journal_title：Experimental physiology

authors： Taboni A,Fagoni N,Fontolliet T,Grasso GS,Moia C,Vinetti G,Ferretti G

更新日期：2020-09-29 00:00:00

abstract：:It is unknown whether changes in corticomotor excitability follow prolonged exercise in healthy humans. Furthermore, the role of supraspinal fatigue in decrements of force production and voluntary activation following prolonged exercise has not been established. This study investigated peripheral and central fatigue a...

journal_title：Experimental physiology

authors： Ross EZ,Middleton N,Shave R,George K,Nowicky A

更新日期：2007-03-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? The parasternal intercostal electromyogram (EMGpara) is known to provide an accurate, non-invasive index of respiratory load-capacity balance. Although relationships between EMGpara and both airflow obstruction and hyperinflation have been shown, the independent ...

journal_title：Experimental physiology

authors： MacBean V,Pringle CL,Lunt AC,Sharp KD,Ali A,Greenough A,Moxham J,Rafferty GF

更新日期：2017-04-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Does 14 days of live-high, train-low simulated altitude alter an individual's metabolomic/metabolic profile? What is the main finding and its importance? This study demonstrated that ∼200 h of moderate simulated altitude exposure resulted in greater variance in m...

journal_title：Experimental physiology

authors： Lawler NG,Abbiss CR,Gummer JPA,Broadhurst DI,Govus AD,Fairchild TJ,Thompson KG,Garvican-Lewis LA,Gore CJ,Maker GL,Trengove RD,Peiffer JJ

更新日期：2019-01-01 00:00:00

abstract：:Salivary fluid secretion is dependent upon reflex stimuli mediated by autonomic nerves. In order to determine if immunoglobulin A (IgA) and salivary proteins are secreted in the absence of nerve stimulation, small volumes (< 2 microl) of saliva were consecutively collected from the submandibular duct of anaesthetised ...

journal_title：Experimental physiology

authors： Proctor GB,Carpenter GH,Segawa A,Garrett JR,Ebersole L

更新日期：2003-01-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Do obesity-specific factors affect skeletal muscle performance in older individuals? What is the main finding and its importance? Older obese women have a larger quadriceps femoris size but develop lower tension per unit of skeletal muscle than their normal-weigh...

journal_title：Experimental physiology

authors： Rastelli F,Capodaglio P,Orgiu S,Santovito C,Caramenti M,Cadioli M,Falini A,Rizzo G,Lafortuna CL

更新日期：2015-10-01 00:00:00

abstract：:Preparations of isolated rat jejunal enterocyte and brush-border and basolateral membrane vesicles have been used to study the effects of a 15 min exposure of upper and mid-villus enterocytes to pancreatic glucagon on the initial, unidirectional phlorhizin-sensitive (brush border) transport of galactose and phlorhizin...

journal_title：Experimental physiology

authors： Debnam ES,Sharp PA

更新日期：1993-03-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Compared with Caucasians, African individuals are more susceptible to non-freezing cold injury and experience greater cutaneous vasoconstriction and cooler finger skin temperatures upon hand cooling. We investigated whether the enzyme cyclooxygenase is, in part, ...

journal_title：Experimental physiology

authors： Maley MJ,House JR,Tipton MJ,Eglin CM

更新日期：2017-07-01 00:00:00

abstract：:A global and transient rise of intracellular Ca2+ (Ca2+i) is central to the operation of pump-leak coupling in the frog early distal tubule (EDT). The endoplasmic reticulum (ER) is the site of this Ca2+ release and reuptake; however, it is likely that other intracellular pools, such as mitochondria, also contribute to...

journal_title：Experimental physiology

authors： Fowler MR,Hunter M

更新日期：2005-03-01 00:00:00

abstract：:The effects of the bacterial toxin Escherichia coli STa on electrogenic secretion in proximal, mid and distal rat colon were examined in vitro using the short-circuit current (Isc) as an index of secretion. All areas showed toxin-elevated Isc which was reduced by bumetanide. The proximal colon was the most sensitive (...

journal_title：Experimental physiology

authors： Young A,Levin RJ

更新日期：1991-11-01 00:00:00

abstract：:Single cells from the rabbit pulmonary artery were isolated using a new and convenient procedure. Strips of muscle were incubated overnight in papain at 6 degrees C and dispersed the following morning after warming the tissue for 10 min. This method consistently produced a high yield of relaxed cells, which reversibly...

journal_title：Experimental physiology

authors： Clapp LH,Gurney AM

更新日期：1991-09-01 00:00:00

abstract：:It is unclear whether cardiac hypertrophy and hypertrophy-related pathways will be induced by long-term intermittent hypoxia. Thirty-six Sprague-Dawley rats were randomly assigned into three groups: normoxia, and long-term intermittent hypoxia (12% O(2), 8 h per day) for 4 weeks (4WLTIH) or for 8 weeks (8WLTIH). Myoca...

journal_title：Experimental physiology

authors： Chen LM,Kuo WW,Yang JJ,Wang SG,Yeh YL,Tsai FJ,Ho YJ,Chang MH,Huang CY,Lee SD

更新日期：2007-03-01 00:00:00

abstract：:Recently attempts have been made to analyse blood pressure (BP) and renal sympathetic nerve activity (RSNA) to determine how patterns contained within them might reflect control by the autonomic nervous system. To date, these studies have primarily used coherence analysis of BP and RSNA in the frequency domain. Howeve...

journal_title：Experimental physiology

authors： Yang Z,Zhang T,Coote JH

更新日期：2002-07-01 00:00:00

abstract：:Aldosterone influences the kidney's regulation of blood pressure (BP), but aldosterone can contribute to the pathogenesis of hypertension. Blood pressure is reduced with aerobic exercise training (AEX), but the extent to which plasma aldosterone (PA) levels change is unclear. The purpose of this study was to determine...

journal_title：Experimental physiology

authors： Jones JM,Dowling TC,Park JJ,Phares DA,Park JY,Obisesan TO,Brown MD

更新日期：2007-09-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Impairment and subsequent improvement in cerebral oxygenation during acute and prolonged exposure to high altitude affect exercise performance. This study innovates by investigating the effect of acute and prolonged high-altitude exposure on cerebral haemodynamic...

journal_title：Experimental physiology

authors： Marillier M,Rupp T,Bouzat P,Walther G,Baillieul S,Millet GY,Robach P,Verges S

更新日期：2021-01-01 00:00:00

abstract：:This study was designed to investigate the putative neurophysiological effects of so-called 'H-wave therapy' (HWT), a form of electrical stimulation, upon conduction latencies in the human superficial radial nerve. Antidromic compound action potentials were recorded from the superficial radial nerve in the dominant fo...

journal_title：Experimental physiology

authors： McDowell BC,Lowe AS,Walsh DM,Baxter GD,Allen JM

更新日期：1996-09-01 00:00:00