In vivo lumbar erector spinae oxygenation and blood volume measurements in healthy men during seated whole-body vibration.

Abstract:

:Exposure to whole-body vibration is implicated as one of the occupational risk factors for lower back disorders; however, its influence on the lumbar muscle physiology is still poorly understood. The objective of this study was to investigate the effects of backrest support and hand grip contractions on lumbar muscle oxygenation and blood volume responses during seated whole-body vibration using continuous dual-wave near-infrared spectroscopy. Thirteen healthy men were exposed to frequencies of 3, 4.5 and 6 Hz on a vibration simulator, in randomized order on separate days. Each day the duration of the protocol was 30 min. During the fifth minute of vibration 'with' and 'without' backrest support, participants performed maximal rhythmic hand grip contractions for 1 min. In general, erector spinae oxygenation and blood volume showed a trend to decrease with vibration exposure compared to the control condition. However, these responses were not influenced by the change in vibration frequency (P > 0.05). Sitting without backrest resulted in a greater decrease in oxygenation (by 27%, P = 0.02) and blood volume (by 11%, P = 0.05) than with backrest, implying a deficiency in oxygen supply owing to the sitting posture. Compared to the vibration-only condition, hand grip work decreased both oxygenation (by 22%, P = 0.003) and blood volume responses (by 13%, P = 0.04), suggesting that postural load due to prolonged sitting combined with physical activity during vibration might further burden paraspinal muscles. The influence of adipose tissue thickness of the lumbar muscle on optically derived oxygenation and blood volume changes was inconclusive.

journal_name

Exp Physiol

journal_title

Experimental physiology

authors

Maikala RV,Bhambhani YN

doi

10.1113/expphysiol.2006.033696

subject

Has Abstract

pub_date

2006-09-01 00:00:00

pages

853-66

issue

5

eissn

0958-0670

issn

1469-445X

pii

expphysiol.2006.033696

journal_volume

91

pub_type

杂志文章
  • Muscle contraction duration and fibre recruitment influence blood flow and oxygen consumption independent of contractile work during steady-state exercise in humans.

    abstract::We tested the hypothesis that, among conditions of matched contractile work, shorter contraction durations and greater muscle fibre recruitment result in augmented skeletal muscle blood flow and oxygen consumption ( ) during steady-state exercise in humans. To do so, we measured forearm blood flow (FBF; Doppler ultras...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2011.062968

    authors: Richards JC,Crecelius AR,Kirby BS,Larson DG,Dinenno FA

    更新日期:2012-06-01 00:00:00

  • Re-expression of pulmonary surfactant proteins following tracheal obstruction in fetal sheep.

    abstract::Increased fetal lung expansion, induced by tracheal obstruction (TO), is a potent stimulus for fetal lung growth, but rapidly reduces surfactant protein (SP) mRNA levels. Our aim was to determine the time course for the re-expression of the surfactant proteins in fetal lung tissue following the release of a TO and to ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/eph8602088

    authors: Lines A,Gillett AM,Phillips ID,Wallace MJ,Hooper SB

    更新日期:2001-01-01 00:00:00

  • Reflex responses from the main pulmonary artery and bifurcation in anaesthetised dogs.

    abstract::This study was undertaken to determine the reflex cardiovascular and respiratory responses to discrete stimulation of pulmonary arterial baroreceptors using a preparation in which secondary modulation of responses from other reflexes was prevented. Dogs were anaesthetised with -chloralose, artificially ventilated, the...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:

    authors: McMahon NC,Drinkhill MJ,Myers DS,Hainsworth R

    更新日期:2000-07-01 00:00:00

  • Abnormal expression of dipeptidylpeptidase IV activity in enterocyte brush-border membranes of children suffering from coeliac disease.

    abstract::Dipeptidylpeptidase IV (DPP IV) activity has been shown cytochemically to decrease significantly in enterocytes of children suffering from coeliac disease. This decrease is due to a halving of the time available for enterocytes to express DPP IV in their brush-border membranes during development. This effect is compar...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1990.sp003439

    authors: Smith MW,Phillips AD

    更新日期:1990-07-01 00:00:00

  • Arrhythmogenic gene remodelling in elderly patients with type 2 diabetes with aortic stenosis and normal left ventricular ejection fraction.

    abstract:NEW FINDINGS:What is the central question of this study? Type 2 diabetes is associated with a higher rate of ventricular arrhythmias compared with the non-diabetic population, but the associated myocardial gene expression changes are unknown; furthermore, it is also unknown whether any changes are attributable to chron...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP086412

    authors: Ashrafi R,Modi P,Oo AY,Pullan DM,Jian K,Zhang H,Gerges JY,Hart G,Boyett MR,Davis GK,Wilding JPH

    更新日期:2017-11-01 00:00:00

  • Resonant frequency at the wrist in hypermobile women.

    abstract::The resonant frequency of the wrist has been measured in sixteen hypermobile and nine normal women at ten levels of peak torque. At the lowest level the results were identical but at the others the hypermobile values were lower. Damping and thixotropy appeared to be normal. In another group the grip strength of hyperm...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1991.sp003493

    authors: Walsh EG,Lambert M,Wright GW,Powers N,Nuki G

    更新日期:1991-03-01 00:00:00

  • Adenosine and hypoxanthine transport in horse erythrocytes: evidence for a polymorphism in the transport of hypoxanthine via a sodium-dependent cotransporter.

    abstract::The inward transport of two purines, adenosine and hypoxanthine, at 37 degrees C by horse erythrocytes was compared. No mediated transport of adenosine was detected in horse erythrocytes, nor was saturable, high-affinity binding of the potent facilitated-diffusion inhibitor nitrobenzylthioinosine demonstrable in horse...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1998.sp004104

    authors: Jarvis SM,Harris RC

    更新日期:1998-03-01 00:00:00

  • Human immune cell mobilization during exercise: effect of IL-6 receptor blockade.

    abstract:NEW FINDINGS:What is the central question of this study? Does blockade of the IL-6 receptor by tocilizumab inhibit immune cell mobilization to the blood stream in humans during an acute bout of exercise? What is the main finding and its importance? Blockade of IL-6 receptor signalling by tocilizumab attenuates mobiliza...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP088864

    authors: Bay ML,Heywood S,Wedell-Neergaard AS,Schauer T,Lehrskov LL,Christensen RH,Legård GE,Jensen PØ,Krogh-Madsen R,Ellingsgaard H

    更新日期:2020-10-02 00:00:00

  • Interactive effects of hypoxia, hypercapnia and lung volume on sympathetic nerve activity in humans.

    abstract:NEW FINDINGS:What is the central question of this study? The central question of this study was to investigate the interaction of mild exposures to O2 and CO2 on chemoreflex control of SNA and the modulation of lung volume and respiratory phase on this interaction. What is the main finding and its importance? We demons...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP085092

    authors: Jouett NP,Watenpaugh DE,Dunlap ME,Smith ML

    更新日期:2015-09-01 00:00:00

  • Variability in end-tidal PCO2 and blood gas values in humans.

    abstract::The aims of this study were: (1) to determine the within-subject, between-day variability in end-tidal P(CO2) (P(ET,CO2)); (2) to determine whether the within-subject, between-day variability in P(ET,CO2) was caused by variations in metabolic acid-base status; and (3) to determine whether between-subject variations in...

    journal_title:Experimental physiology

    pub_type: 临床试验,杂志文章

    doi:10.1113/eph8802585

    authors: Crosby A,Robbins PA

    更新日期:2003-09-01 00:00:00

  • Hypotonic swelling increases L-type calcium current in smooth muscle cells of the human stomach.

    abstract::The purpose of the present study was to characterize the Ca2+ channels in smooth muscle cells from human stomach and to examine the effects of osmotic swelling on the channel activity. Ca2+ channel current with either Ca2+ or Ba2+ as charge carrier was recorded from freshly isolated smooth muscle cells using the conve...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1017/s0958067000020133

    authors: Kim CH,Rhee PL,Rhee JC,Kim YI,So I,Kim KW,Park MK,Uhm DY,Kang TM

    更新日期:2000-09-01 00:00:00

  • Is rate-pressure product of any use in the isolated rat heart? Assessing cardiac 'effort' and oxygen consumption in the Langendorff-perfused heart.

    abstract:NEW FINDINGS:What is the central question of this study? Rate-pressure product (RPP) is commonly used as an index of cardiac 'effort'. In canine and human hearts (which have a positive force-frequency relationship), RPP is linearly correlated with oxygen consumption and has therefore been widely adopted as a species-in...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP085380

    authors: Aksentijević D,Lewis HR,Shattock MJ

    更新日期:2016-02-01 00:00:00

  • Effects of inspiratory muscle strength and inspiratory resistance on neck inspiratory muscle activation during controlled inspirations.

    abstract:NEW FINDINGS:What is the central question of this study? What factors influence the onset and magnitude of activation of the neck inspiratory muscles during inspiration? What is the main finding and its importance? Recruitment of the sternocleidomastoid and scalene muscles during inspiration, measured by means of surfa...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP087247

    authors: Washino S,Mankyu H,Kanehisa H,Mayfield DL,Cresswell AG,Yoshitake Y

    更新日期:2019-04-01 00:00:00

  • Three-dimensional morphology and volume of the free Achilles tendon at rest and under load in people with unilateral mid-portion Achilles tendinopathy.

    abstract:NEW FINDINGS:What is the central question of this study? The aim was to determine the effect of mid-portion Achilles tendinopathy (MAT) on free Achilles tendon three-dimensional morphology and volume at rest and under load in people with unilateral MAT. What is the main finding and its importance? Tendinopathic tendon ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP086673

    authors: Nuri L,Obst SJ,Newsham-West R,Barrett RS

    更新日期:2018-03-01 00:00:00

  • Developmental programming of obesity in mammals.

    abstract::Converging lines of evidence from epidemiological studies and animal models now indicate that the origins of obesity and related metabolic disorders lie not only in the interaction between genes and traditional adult risk factors, such as unbalanced diet and physical inactivity, but also in the interplay between genes...

    journal_title:Experimental physiology

    pub_type: 杂志文章,评审

    doi:10.1113/expphysiol.2005.032854

    authors: Taylor PD,Poston L

    更新日期:2007-03-01 00:00:00

  • Experimental increase of blood glucose alters resting state EEG measures of excitation-inhibition balance.

    abstract:NEW FINDINGS:What is the central question of this study? Glucose is the dominant energy source for the brain. However, little is known about how glucose metabolism impacts the coordination of network activity in the brain in healthy adults. What is the main finding and its importance? We demonstrate that both alpha osc...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP089211

    authors: Walker CP,Buse J,Frohlich F

    更新日期:2021-01-28 00:00:00

  • Impaired pulmonary gas exchange efficiency, but normal pulmonary artery pressure increases, with hypoxia in men and women with a patent foramen ovale.

    abstract:NEW FINDINGS:What is the central question of this study? Do individuals with a patent foramen ovale (PFO+ ) have a larger alveolar-to-arterial difference in P O 2 ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP088750

    authors: Duke JW,Beasley KM,Speros JP,Elliott JE,Laurie SS,Goodman RD,Futral E,Hawn JA,Lovering AT

    更新日期:2020-09-01 00:00:00

  • Short-term very low caloric intake causes endothelial dysfunction and increased susceptibility to cardiac arrhythmias and pathology in male rats.

    abstract:NEW FINDINGS:What is the central question of this study? What are the effects of a 2 week period of severe food restriction on vascular reactivity of resistance arteries and on cardiac structure and function? What is the main finding and its importance? This study showed, for the first time, that a 2 week period of sev...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/EP088434

    authors: Almeida JFQ,Shults N,de Souza AMA,Ji H,Wu X,Woods J,Sandberg K

    更新日期:2020-07-01 00:00:00

  • Increased sensitization of the myofilaments in rat neonatal portal vein: a potential mechanism.

    abstract::The contractile regulation of neonatal smooth muscle was studied in rat neonatal portal vein. Strips of beta-escin-permeabilized portal vein from 3- to 5-day-old rats and 5- to 6-week-old rats were mounted on a 'bubble chamber' in calcium solutions buffered with 10 mM EGTA. Although the overall tension development was...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1997.sp004084

    authors: Bruce L,Nixon GF

    更新日期:1997-11-01 00:00:00

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

    abstract::The effects of muscle fatigue on the mechanical efficiency of muscle work performance were studied in situ, in stretch-shortening cycles that resembled physiological conditions. The experiments were performed on the medial gastrocnemius muscles of seven rats. To calculate efficiency, a simple Hill-type model was used,...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1997.sp004001

    authors: Ettema GJ

    更新日期:1997-01-01 00:00:00

  • Effect of body posture on postexercise parasympathetic reactivation in men.

    abstract::The aim of the present study was to assess the influence of body posture on post-submaximal exercise parasympathetic reactivation and to examine whether this influence was preserved under a heightened sympathetic background. On four occasions, eleven moderately trained subjects (22.1 +/- 3.0 years old) performed, in r...

    journal_title:Experimental physiology

    pub_type: 杂志文章,随机对照试验

    doi:10.1113/expphysiol.2009.048041

    authors: Buchheit M,Al Haddad H,Laursen PB,Ahmaidi S

    更新日期:2009-07-01 00:00:00

  • The mode of action of several opioids on cardiac muscle.

    abstract::The objective of the experiments was to investigate the cellular basis of the inotropic effect on myocardium of several opioids which have been implicated in producing cardiotoxic effects in human poisoning. Opioids exerted negative inotropic effects, with half-maximal concentrations between 10 microM (dextropropoxyph...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1997.sp004021

    authors: Wu C,Fry CH,Henry J

    更新日期:1997-03-01 00:00:00

  • Human femoral artery and estimated muscle capillary blood flow kinetics following the onset of exercise.

    abstract::The purpose of this study was to compare the kinetics of estimated capillary blood flow (Qcap) to those of femoral artery blood flow (QFA) and estimated muscle oxygen uptake (VO2m). Nine healthy subjects performed a series of transitions from rest to moderate (below estimated lactate threshold, 6 min bouts) knee exten...

    journal_title:Experimental physiology

    pub_type: 临床试验,杂志文章

    doi:10.1113/expphysiol.2005.032904

    authors: Harper AJ,Ferreira LF,Lutjemeier BJ,Townsend DK,Barstow TJ

    更新日期:2006-07-01 00:00:00

  • Exercise induces interleukin-8 receptor (CXCR2) expression in human skeletal muscle.

    abstract::Exercise induces a marked increase in interleukin-8 (IL-8) mRNA and protein expression within skeletal muscle fibres. Interleukin-8 belongs to a subfamily of CXC chemokines containing a Glu-Leu-Arg (ELR) motif. CXC chemokines with ELR motifs are potent angiogenic factors in vivo, and IL-8 has been shown to act as an a...

    journal_title:Experimental physiology

    pub_type: 杂志文章,随机对照试验

    doi:10.1113/expphysiol.2006.034769

    authors: Frydelund-Larsen L,Penkowa M,Akerstrom T,Zankari A,Nielsen S,Pedersen BK

    更新日期:2007-01-01 00:00:00

  • Effect of feeding on the diurnal rhythm of plasma cortisol and adrenocorticotrophic hormone concentrations in the pregnant ewe and sheep fetus.

    abstract::The effects of two different feeding regimes on the 24 h profiles of maternal and fetal plasma cortisol and adrenocorticotrophic hormone (ACTH) concentrations were studied in eight pregnant ewes between 123 and 144 days of gestation. Once daily-fed ewes (n = 4) received 1 kg of lucerne-chaff at 11.00 h, and multi-fed ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1991.sp003488

    authors: Simonetta G,Walker DW,McMillen IC

    更新日期:1991-03-01 00:00:00

  • Laryngeal movements during the respiratory cycle measured with an endoscopic imaging technique in the conscious horse at rest.

    abstract::A video-laryngoscopic method, implemented with an algorithm for the correction of the deformation inherent in the endoscope optical system, has been used to measure the dorsoventral diameter (Drg) and the cross-sectional area (CSArg) of the rima glottidis in five healthy workhorses during conscious breathing at rest. ...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:

    authors: Lafortuna CL,Albertini M,Ferrucci F,Zucca E,Braghieri M,Clement MG,Saibene F

    更新日期:1999-07-01 00:00:00

  • Effects of arginine vasotocin, isotocin and melatonin on blood pressure in the conscious atlantic cod (Gadus morhua): hormonal interactions?

    abstract::The effects of exogenous arginine vasotocin (AVT), isotocin (IT) and melatonin on the blood pressure of conscious Atlantic cod (Gadus morhua) were examined. Ventral aortic blood pressure (PVA) was recorded from a cannula inserted into the afferent branchial artery of the third gill arch. Dorsal aortic blood pressure (...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.1998.sp004161

    authors: Kulczykowska E

    更新日期:1998-11-01 00:00:00

  • The increase in body weight induced by lack of methyl CpG binding protein-2 is associated with altered leptin signalling in the hypothalamus.

    abstract::Methyl CpG binding protein-2 (MECP2) is a chromatin-remodelling factor with a dual role in gene expression. Evidence from patients carrying MECP2 mutations and from transgenic mouse models demonstrates that this protein is involved in the control of body weight. However, the mechanism for this has not been fully eluci...

    journal_title:Experimental physiology

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2014.079798

    authors: Torres-Andrade R,Moldenhauer R,Gutierrez-Bertín N,Soto-Covasich J,Mancilla-Medina C,Ehrenfeld C,Kerr B

    更新日期:2014-09-01 00:00:00

  • Osteopetrosis in obese female rats is site-specifically inhibited by physical training.

    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

    pub_type: 杂志文章

    doi:10.1113/expphysiol.2014.082511

    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

  • Carbohydrate ingestion prior to exercise augments the exercise-induced activation of the pyruvate dehydrogenase complex in human skeletal muscle.

    abstract::This study examined the effect of pre-exercise carbohydrate (CHO) ingestion on pyruvate dehydrogenase complex (PDC) activation, acetyl group availability and substrate level phosphorylation (glycogenolysis and phosphocreatine (PCr) hydrolysis) in human skeletal muscle during the transition from rest to steady-state ex...

    journal_title:Experimental physiology

    pub_type: 临床试验,杂志文章

    doi:

    authors: Tsintzas K,Williams C,Constantin-Teodosiu D,Hultman E,Boobis L,Greenhaff P

    更新日期:2000-09-01 00:00:00