Abstract：
:We investigated the effect of increases in muscle afferent information from the shoulder girdle elevators on saccadic reaction time. Saccadic reaction time was measured under conditions of isometric voluntary contraction of the shoulder girdle elevators and vibratory stimulation of the trapezius. Saccadic reaction time was defined as the latency until the beginning of eye movement toward the lateral target, which was moved at random time-intervals in jumps of 20 degress amplitude. Eye movement was measured using the electro-oculogram technique. Muscle contraction force was set in 10% increments from 0% to 30% of maximal voluntary contraction (MVC), and vibration frequency was maintained at 100 Hz. Under voluntary contraction, the saccadic reaction time gradually shortened up to 30% MVC. Under vibration stimulation at 0% MVC, the reaction time shortened to the same degree as that under voluntary contraction at 30% MVC. Under conditions of combined vibratory stimulation and voluntary contraction, the reaction time was essentially identical to these values; namely, no additive effect in shortening of the reaction time was recognized. The results demonstrated that saccadic reaction times were remarkably shortened by increases in muscle afferent information from the neck extensors. We have discussed reasons for the lack of an additive effect and factors limiting shortening of reaction times.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Fujiwara K,Kunita K,Toyama H,Miyaguchi Adoi
10.1007/s004210100509keywords:
subject
Has Abstractpub_date
2001-10-01 00:00:00pages
527-32issue
6eissn
1439-6319issn
1439-6327journal_volume
85pub_type
杂志文章abstract：PURPOSE:Through time- and frequency-domain analysis, we compared the effects of acute hypobaric hypoxia on the changes in heart rate variability (HRV) following night sleeping and morning awakening in individuals with and without acute mountain sickness (AMS). METHOD:Thirty-nine nonacclimatised healthy individuals wer...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-017-3555-7
更新日期：2017-04-01 00:00:00
abstract：:Intramuscular and surface electromyographic (EMG) activities were recorded from the left and right upper trapezius muscle of eight healthy male subjects during 5-min long static contractions at 2% and 5% of the maximal voluntary contraction (MVC) force. Intramuscular signals were detected by wire electrodes while surf...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-004-1261-8
更新日期：2006-01-01 00:00:00
abstract：:Nitric oxide (NO), a short-lived vasoactive substance that has multiple physiological functions, is also involved in skeletal muscle physiology. This work examines the levels of nitrate (the metabolic end-product of NO) in muscle and plasma after different exercise protocols: namely acute, eccentric, cardiac stress an...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-002-0693-2
更新日期：2002-11-01 00:00:00
abstract：:The aim of this study was to determine if there is a training effect on leptin levels at rest or after prolonged exercise during an 8-month training season of rowers. Eleven trained rowers were evaluated at three sessions (control, early and late) during the season. At the early and late sessions, leptin and insulin c...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-003-1030-0
更新日期：2004-05-01 00:00:00
abstract：PURPOSE:The focus of this study was to monitor daily objective measures of standing postural control over an 8-week period, recorded in a person's home, in a population of healthy older adults. Establishing natural patterns of variation in the day-to-day signal, occurring in the relative absence of functional decline o...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-014-3034-3
更新日期：2015-02-01 00:00:00
abstract：:In this study we investigated force loss and recovery after eccentric exercise, and further characterized profound losses in muscle function (n = 192 subjects--98 males, 94 females; population A). Maximal voluntary contractile force (MVC) was assessed before, immediately after, and at 36 and 132 h after eccentric exer...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s004210000346
更新日期：2001-01-01 00:00:00
abstract：:Low bone mineral density (BMD) is established as a primary predictor of osteoporotic risk and can also have substantial implications for athlete health and injury risk in the elite sporting environment. BMD is a highly multi-factorial phenotype influenced by diet, hormonal characteristics and physical activity. The in...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
doi：10.1007/s00421-018-4007-8
更新日期：2019-01-01 00:00:00
abstract：:The neuregulin/erbB-signaling axis contributes to the development and growth of multiple mammalian tissues including skeletal muscle. In this study, we sought to characterize the native expression of this system in human skeletal muscle and test the hypothesis that a program of progressive resistance training (PRT) wo...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-005-1333-4
更新日期：2005-07-01 00:00:00
abstract：PURPOSE:Pentraxin 3 (PTX3) is a vital regulator of innate immune function. Although plasma PTX3 concentrations are elevated with aerobic fitness, the cellular functions of PTX3 remain unknown in aerobically trained and untrained subjects. METHODS:Thirty individuals (aerobically trained = 15 and untrained = 15) partici...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-018-3882-3
更新日期：2018-07-01 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：:This study was undertaken to elucidate the impact of long-term physical training on the modulation of stretch reflex excitability. To this end, electromyographic activities of the soleus muscle in response to quick toe-up rotation were compared between highly trained endurance runners (n = 8) and non-trained control s...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-012-2351-7
更新日期：2012-10-01 00:00:00
abstract：PURPOSE:This study aimed at determining the influence of the ACTN3 R577X polymorphism on muscle strength and muscle endurance in non-athletic young men. METHODS:266 healthy young men were included in this study. Each subject performed maximal isometric, concentric and eccentric contractions of the knee extensor muscle...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-015-3144-6
更新日期：2015-08-01 00:00:00
abstract：PURPOSE:Current methods for estimating muscle motor unit (MU) number provide values which are remarkably similar for muscles of widely differing size, probably because surface electrodes sample from similar and relatively small volumes in each muscle. We have evaluated an alternative means of estimating MU number that ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-018-3811-5
更新日期：2018-04-01 00:00:00
abstract：:We have previously shown that Achilles tendon length is related to walking economy on the flat, presumably because of increased stretch-shortening cycle elastic energy savings. In addition, greater walking economy in African American (AA) women compared to European American (EA) women is explained by longer Achilles t...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-010-1816-9
更新日期：2011-08-01 00:00:00
abstract：:To determine if there is a sex dimorphism in the skeletal muscle signaling response to sprint exercise, 17 men and ten women performed a 30-s Wingate test. Muscle biopsies were taken before, immediately after the exercise and at 30 and 120 min during the recovery period. Thr(172)-AMPKα, Ser(221)-ACCβ, Thy(705)-STAT3, ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2164-0
更新日期：2012-05-01 00:00:00
abstract：:The purpose of this study was to determine the impact of high-intensity intermittent exercise on the presence of circulating growth hormone (GH) aggregates measured using two different assay techniques. Six male subjects with endurance training background participated in this study under both exercise and no-exercise ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-002-0774-2
更新日期：2003-04-01 00:00:00
abstract：:Mechanical loading of cells induces the expression of transforming growth factor-beta-1, and acute exercise, which involves mechanical loading of several tissues, could thus increase its circulating level in humans. However, no consensus exists regarding the plasma concentration of this cytokine in resting subjects (r...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-003-0881-8
更新日期：2003-09-01 00:00:00
abstract：:Herein, the principles of homoeostasis are re-visited, but with an emphasis upon repeated homoeostatic disturbances that give rise to physiological adaptation. The central focus is human heat adaptation, and how, for experimental purposes, one might standardise successive adaptation stimuli, and then evaluate and comp...
journal_title：European journal of applied physiology
pub_type： 杂志文章,评审
doi：10.1007/s00421-020-04489-0
更新日期：2020-12-01 00:00:00
abstract：:Local muscle fatigue can originate from both peripheral and central factors. The relative contribution of these factors in the course of a fatiguing contraction in 20 healthy subjects was determined. While subjects made a 2-min sustained maximal voluntary contraction (MVC) of the biceps brachii, muscle fibre conductio...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-003-0913-4
更新日期：2003-11-01 00:00:00
abstract：:The effect of outdoor clothing and repeated cold exposure on blood pressure, heart rate, skin temperature, and thermal sensation was studied in 16 young (18-34 years) and 8 middle-aged (35-51 years) normotensive participants. Four winter clothing ensembles were used: regular winter clothing without a hat, with a hat, ...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-009-1176-5
更新日期：2009-12-01 00:00:00
abstract：:Branched chain amino acids (BCAA), particularly leucine, have been suggested to be ergogenic for both endurance and strength/power performance. This study investigated the effects of dietary leucine supplementation on the exercise performance of outrigger canoeists. Thirteen (ten female, three male) competitive outrig...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-005-0036-1
更新日期：2006-08-01 00:00:00
abstract：:In rodents, endurance training increases leptin sensitivity in skeletal muscle; however, little is known about the effects of exercise on the leptin signalling system in human skeletal muscle. Thus, to determine whether chronic muscle loading increases leptin receptor (OB-R170) protein expression, body composition dua...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-009-1281-5
更新日期：2010-03-01 00:00:00
abstract：:The present experiment investigated the control of bipedal posture following localised muscle fatigue of the plantar-flexors and finger-flexors. Twelve young healthy adults voluntarily participated in this study. They were asked to stand upright as still as possible with their eyes closed in two randomly ordered exper...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-011-2009-x
更新日期：2012-02-01 00:00:00
abstract：PURPOSE:Locomotor muscle fatigue impairs exercise performance during time to exhaustion tests. However, its effect on self-regulation of power output (pacing) is unknown. The primary aim of this study was to investigate the effects of locomotor muscle fatigue on pacing and time trial performance. METHODS:Ten healthy r...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-013-2673-0
更新日期：2013-09-01 00:00:00
abstract：:This study assessed the relationship between rating of perceived exertion (RPE) and time to exhaustion during arm cranking exercise while exercising at two different constant-load exercise intensities in able-bodied and paraplegic individuals. The second aim of this study was to assess the rate of change in the RPE be...
journal_title：European journal of applied physiology
pub_type： 杂志文章
doi：10.1007/s00421-010-1722-1
更新日期：2011-06-01 00:00:00
abstract：PURPOSE:The effectiveness of exercise to lower blood pressure may depend on the type and intensity of exercise. We study the short-term (i.e., 14-h) effects of a bout of high-intensity aerobic interval training (HIIT) on blood pressure in metabolic syndrome (MetS) patients. METHODS:Nineteen MetS patients (55.2 ± 7.3 y...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-017-3631-z
更新日期：2017-07-01 00:00:00
abstract：:For over two centuries, scientists have measured gas exchange in animals and humans and linked this to energy expenditure of the body. The aim of this review is to provide a comprehensive overview of open-circuit diluted flow indirect calorimetry and to help researchers to make the optimal choice for a certain system ...
journal_title：European journal of applied physiology
pub_type： 历史文章,杂志文章,评审
doi：10.1007/s00421-017-3735-5
更新日期：2018-01-01 00:00:00
abstract：:This investigation was undertaken to examine the influence of intensity fluctuation on metabolic responses during and after exercise. Twenty-four males and 24 females were randomly assigned into one of the four groups consisting of 12 subjects of equal gender. Each group performed one of four 30-min exercise protocols...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-007-0424-9
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:Our purpose was to study the effects of aerobic, resistance, and mixed (aerobic and resistance) training programs on blood pressure, both at rest and during submaximal exercise in healthy people. METHODS:We randomized 39 physically active, healthy participants into aerobic, resistance, and mixed (aerobic and...
journal_title：European journal of applied physiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00421-017-3706-x
更新日期：2017-11-01 00:00:00
abstract：:Continuous assessment of mixed venous oxygen saturation (cSvO(2)) during exercise using a fiber optic pulmonary artery catheter can provide valuable information on the physiological determinants of the exercise capacity in patients with chronic heart failure (CHF). Since its accuracy is not well established during exe...
journal_title：European journal of applied physiology
pub_type： 临床试验,杂志文章
doi：10.1007/s00421-007-0597-2
更新日期：2008-03-01 00:00:00
