Abstract：
:We hypothesized that impaired cardiovascular responses to isometric muscle action contribute to the cardiovascular deconditioning that occurs after space flight (SF) and head-down-tilt bed rest (HDT). Six subjects were studied before, during and after 120 days of -6 degrees HDT, and four subjects were studied before, during (two subjects) and after 179-389 days of SF. Subjects performed a sustained handgrip (SHG) at a force equivalent to 30% of maximum contraction force for 2 min, and heart-rate (HR) and pressor (mean arterial pressure, deltaMAP) responses were recorded. At the same relative force, both deltaHR and deltaMAP were significantly reduced during the first days after HDT (-54%, P<0.05 and -43%, P<0.05). In two subjects studied within 24 h after their return from SF, deltaMAP was practically absent (-79%, P<0.05) whereas in four subjects studied 1-4 days after return from SF, deltaMAP was reduced by 35% (P<0.05). deltaHR was not significantly changed. Our finding of attenuated pressor responses to SHG after HDT and SF supports the notion of impairments at both the neurocirculatory control and effector organ levels.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Spaak J,Sundblad P,Linnarsson Ddoi
10.1007/s004210100429keywords:
subject
Has Abstractpub_date
2001-07-01 00:00:00pages
49-55issue
1-2eissn
1439-6319issn
1439-6327journal_volume
85pub_type
杂志文章abstract：:The present investigation has been designed to confirm the effect of instruction (hard-and-fast instruction compared to fast instruction) upon maximal voluntary isometric force (MVF) and maximal rate of force development (MRFD) in muscle groups which differ with regards to muscle mass and usage. In addition, we took a...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s004210100451
更新日期：2001-08-01 00:00:00
abstract：PURPOSE:We tested the hypothesis that exposure to a short-term (1 h) increase in intraluminal pressure and shear stress (SS), to mimic two mechanical signals associated with a bout of exercise, improves nitric oxide (NO)-mediated endothelium-dependent dilation in aged soleus muscle feed arteries (SFA). In addition, we ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-016-3388-9
更新日期：2016-07-01 00:00:00
abstract：PURPOSE:The purpose of the present study was to investigate the age-related carbohydrate oxidation and glucose utilisation rate response during exercise at the same relative intensity under hyperglycaemia in aged and young males. METHODS:16 endurance-trained aged (n = 8; 69.1 ± 5.2 year) and young (n = 8; 22.4 ± 2.9 y...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-018-4019-4
更新日期：2019-01-01 00:00:00
abstract：PURPOSE:A previous study observed a joint passive torque increase above baseline ~30 min after a high-intensity stretching. This study examined the effect of a high-intensity stretching on ankle dorsiflexion passive torque, medial gastrocnemius (MG) shear modulus, and plantar flexors maximal voluntary isometric force (...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-016-3410-2
更新日期：2016-08-01 00:00:00
abstract：PURPOSE:The self-paced maximal oxygen uptake test (SPV) may offer effective training prescription metrics for athletes. This study aimed to examine whether SPV-derived data could be used for training prescription. METHODS:Twenty-four recreationally active male and female runners were randomly assigned between two trai...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-018-3814-2
更新日期：2018-05-01 00:00:00
abstract：:Both physical as well as mental demands result in an increased activity in the sympathetic nervous system (SNS) with changes in blood-pressure and heart-rate. Through local release of catecholamines, e.g. noradrenaline (NAd) SNS exerts various actions at the muscle level. The aims of this study were to investigate the...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-009-1095-5
更新日期：2009-09-01 00:00:00
abstract：:To clarify whether the resting background effects (genomic) or exercise-related action (non-genomic) of aldosterone (ALD) is primarily affected to an individual variation in the sweat Na+ concentration ([Na+]sweat), we analyzed the cross-sectional relationship between [Na+]sweat and the plasma ALD concentration during...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-006-0295-5
更新日期：2006-11-01 00:00:00
abstract：PURPOSE:The facial skin blood flow (SkBF) shows regional differences in the responses to a given stimulation. The facial SkBFs, especially in the eyelid and nose exhibit unique response to physiological and psychological stimuli, but the mechanisms inducing those regional differences remain unclear. To investigate whet...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-019-04109-6
更新日期：2019-05-01 00:00:00
abstract：:Using an improved Peronnet-Thibault model to analyse the maximal power available during exercise, it was found that a 3rd-order relaxation process for the decreasing dynamics of aerobic power can describe accurately the data available for world track records and aerobic-to-total energy ratio (ATER). It was estimated t...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-001-0555-3
更新日期：2002-04-01 00:00:00
abstract：:Cooling of a muscle has a detrimental effect on its force, power and contraction velocity, but may improve force control during precision movements by reducing physiological tremor. We investigated if the contractile characteristics of the first dorsal interosseus muscle (FDI) were linked to voluntary force control in...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-003-0938-8
更新日期：2004-01-01 00:00:00
abstract：:To examine the influence of the frequency of measurement on the rating of perceived exertion (RPE) during sub-maximal exercise. On two occasions participants performed 35 min sub-maximal treadmill exercise at the same running speed. In both runs RPE was measured after 5 min. Thereafter, RPE was measured at either 10-m...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-009-1041-6
更新日期：2009-05-01 00:00:00
abstract：PURPOSE:To compare cardiometabolic responses to five consecutive days of daily postprandial exercise accumulated in three 10-min bouts or a single 30-min bout to a no-exercise control. METHODS:Ten insufficiently active adults completed three trials in a randomised order. Each trial comprised five consecutive days of 3...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-020-04461-y
更新日期：2020-11-01 00:00:00
abstract：PURPOSE:A self-paced maximal exercise protocol has demonstrated higher [Formula: see text] values when compared against traditional tests. The aim was to compare physiological responses to this self-paced [Formula: see text] protocol (SPV) in comparison to a traditional ramp [Formula: see text] (RAMP) protocol in young...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-016-3508-6
更新日期：2017-01-01 00:00:00
abstract：PURPOSE:Harmful effects of inhaled particulates have been established in epidemiologic studies of ambient air pollution. In particular, heart rate variability responses to high levels of environmental tobacco smoke (ETS), similar to responses observed during direct smoking, have been reported. We sought to determine wh...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-014-2998-3
更新日期：2015-02-01 00:00:00
abstract：:Breath-hold divers report transient, severe neurological symptoms that could be caused by arterial gas embolism after glossopharyngeal insufflation. This technique is often used to overinflate the lungs and stretch the chest prior to breath-holding and can increase the transpulmonary pressure to around 7-8 kPa, so int...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-012-2494-6
更新日期：2013-03-01 00:00:00
abstract：:Body tilt angle affects the fatigue of human calf muscle at a high contractile force (i.e. 70 %MVC); but the range of forces across which this effect occurs is not known and we sought to determine this in the present study. Fourteen men performed intermittent calf muscle contractions at either 30, 40, 50 and 60 %MVC (...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-006-0308-4
更新日期：2007-01-01 00:00:00
abstract：PURPOSE:The aim of this study was to investigate the effect of an ultra-marathon on heart rate variability (HRV) and psychometric indices in endurance runners. In addition, we aimed to determine the magnitude of change and subsequent recovery for 7 days following the race. METHODS:Recreationally trained runners (n = 1...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-019-04187-6
更新日期：2019-09-01 00:00:00
abstract：:The objective of this study was to determine the impact of treadmill locomotor training on the expression of insulin-like growth factor I (IGF1) and changes in myogenic regulatory factors (MRFs) in rat soleus muscle following spinal cord injury (SCI). Moderate, midthoracic (T(8)) contusion SCIs were produced using a N...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-010-1392-z
更新日期：2010-07-01 00:00:00
abstract：:An objective of a warm-up prior to an athletic event is to optimize performance. Warm-ups are typically composed of a submaximal aerobic activity, stretching and a sport-specific activity. The stretching portion traditionally incorporated static stretching. However, there are a myriad of studies demonstrating static s...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
doi：10.1007/s00421-011-1879-2
更新日期：2011-11-01 00:00:00
abstract：PURPOSE:This study examined whether lower-volume exercise-induced muscle damage (EIMD) performed 2 weeks before high-volume muscle-damaging exercise protects against its detrimental effect on running performance. METHODS:Sixteen male participants were randomly assigned to a lower-volume (five sets of ten squats, n = 8...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-015-3131-y
更新日期：2015-07-01 00:00:00
abstract：:To identify the effect of normal breathlessness sensation elicited during intense intermittent exercise at exhaustion on limitation of exercise maintenance (Ex), the contribution of the flow-resistive unloading effect of normoxic helium-oxygen breathing on the breathlessness sensation to the change in the Ex was exami...
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/s00421-004-1094-5
更新日期：2004-07-01 00:00:00
abstract：:The purpose of this study was to investigate the differences in the viscoelastic properties of human tendon structures (tendon and aponeurosis) in the medial gastrocnemius muscle between men (n=16) and women (n=13). The elongation of the tendon and aponeurosis of the medial gastrocnemius muscle was measured directly b...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-002-0744-8
更新日期：2003-02-01 00:00:00
abstract：:Though conventional wisdom suggests that a rise in blood pressure is a reality of advancing age, in fact, it appears that progressive elevation in sympathetic activity, not necessarily accompanied by increased blood pressure, is intrinsic to cardiovascular aging in humans. The mechanism behind this elevation would see...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
doi：10.1007/s00421-013-2731-7
更新日期：2014-03-01 00:00:00
abstract：PURPOSE:We tested the hypothesis that monoexponential regressions will increase the certainty in response estimates and confidence in classification of cardiorespiratory fitness (CRF) responses compared to a recently proposed linear regression approach. METHODS:We used data from a previously published RCT that involve...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-019-04078-w
更新日期：2019-04-01 00:00:00
abstract：PURPOSE:Supra-tolerance head-to-foot directed gravitoinertial load (+Gz) typically induces a sequence of symptoms/signs, including loss of: peripheral vision-central vision-consciousness. The risk of unconsciousness is greater when anti-G-garment failure occurs after prolonged rather than brief exposures, presumably be...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-016-3499-3
更新日期：2017-01-01 00:00:00
abstract：:Beta-endorphin (betaE) is an important reliever of pain. Various stressors and certain modalities of physiotherapy are potent inducers of the release of endogenous betaE to the blood stream. Most forms of exercise also increase blood betaE level, especially when exercise intensity involves reaching the anaerobic thres...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
doi：10.1007/s00421-007-0469-9
更新日期：2007-07-01 00:00:00
abstract：:In order to quantify the seasonal variability of haemoglobin mass (Hb(mass)) in cyclists during a competitive season, and investigate whether variability is associated with changes in training load or performance, Hb(mass) was measured in 10 internationally competitive female road cyclists approximately once per month...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-009-1349-2
更新日期：2010-05-01 00:00:00
abstract：:Our objective was to determine the effects of long-lasting endurance events on the energy cost of running (C(r)), and the role of maximal oxygen uptake (VO(2max)), its fractional utilisation (F) and C(r) in determining the performance. Ten healthy runners (age range 26-59 years) participated in an ultra-endurance comp...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2120-z
更新日期：2012-05-01 00:00:00
abstract：:Isometric maximum voluntary force (MVF) of the adductor pollicis and first dorsal interosseous muscles was measured in 11 pre- and 11 post-menopausal (Pre-M and Post-M) human subjects. The temperature of the hand varied in the range 18°-38°C by water immersion and skin temperature was recorded. MVF at each temperature...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-011-2061-6
更新日期：2012-03-01 00:00:00
abstract：PURPOSE:To examine the accuracy of practical indirect methods (i.e., recreational football match and estimation equations) in assessing individual maximal heart rate (HRmax) in recreational football players. Sixty-two untrained male participants engaged in a recreational football intervention (age 39.3 ± 5.8 years, VO2...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-020-04334-4
更新日期：2020-04-01 00:00:00
