Abstract:
:It is well known that there is a relationship between the voice the human emotional status. Previous studies have demonstrated that changes of fundamental frequency ( f(0)), in particular, have a significant relationship with emotional load. The aim of the present study was to investigate how f(0) changes in response to an unknown emotionally stressful task under real-life conditions. A further question was whether repetitions of this task lead to an adaptation of f(0), indicating a lower emotional load. The participants of this study included 26 healthy males. f(0) and heart rate ( f(c)) were recorded for baseline testing (BLT) under relaxed laboratory conditions. Then the participants were asked to negotiate a natural obstacle by way of sliding down a rope hanging from a handlebar without any safety provisions, thus being exposed to the danger of a fall from a height of up to 12 m into shallow water (guerrilla slide I, GSI). The task was repeated after 30 min (GSII) and after 3 days of physical strain (GSIII). Immediately before starting the task the participants were asked to give a standardised speech sample, during which f(c) was recorded. The mode value of f(0) ( f(0,mode)) of the speech samples was used for further analysis. The mean (SD) value of f(0,mode) at BLT was 114.9 (14.8) Hz; this increased to 138.8 (19.6) Hz at GSI ( P<0.000), decreased to 135.9 (19.6) Hz at GSII and to 130.0 (21.5) Hz at GSIII ( P=0.012). The increase in f(c) was significantly different from BLT to GSI ( P<0.000). The repetitions of the task did not produce significant changes in f(c). It was shown that f(0,mode) is a sensitive parameter to describe changes in emotional load, at least in response to short-term psychoemotional stress, and seems to throw light upon the amount of adaptation caused by increased experience.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Wittels P,Johannes B,Enne R,Kirsch K,Gunga HCdoi
10.1007/s00421-002-0625-1keywords:
subject
Has Abstractpub_date
2002-07-01 00:00:00pages
278-82issue
3eissn
1439-6319issn
1439-6327journal_volume
87pub_type
临床试验,杂志文章abstract::Swimming is a popular activity for Australian women with proven cardiovascular benefits yet lacks the features thought necessary to stimulate positive adaptive changes in bone. Given that peak bone mass is attained close to the end of the second decade, we asked whether swimming was negatively associated with bone min...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-011-2305-5
更新日期:2012-09-01 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::Through our recent studies on heart rate variability (Oida et al. J Appl Physiol 82:1794-1801, 1997; J Gerontol 54A:M219-M224, 1999a; Acta Physiol Scand 165:129-134, 1999b; Acta Physiol Scand 165:421-422, 1999c), we discover that autonomic functions could be assessed quantitatively in time domain by the tone-entropy (...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-005-1364-x
更新日期:2005-08-01 00:00:00
abstract::Iron plays a significant role in the body, and is specifically important to athletes, since it is a dominant feature in processes such as oxygen transport and energy metabolism. Despite its importance, athlete populations, especially females and endurance athletes, are commonly diagnosed with iron deficiency, suggesti...
journal_title:European journal of applied physiology
pub_type: 杂志文章,评审
doi:10.1007/s00421-019-04157-y
更新日期:2019-07-01 00:00:00
abstract::The purpose of this review is to explore existing research on the physiological aspects of difficult rock climbing. Findings will be categorized into the areas of an athlete profile and an activity model. An objective here is to describe high-level climbing performance; thus the focus will primarily be on studies that...
journal_title:European journal of applied physiology
pub_type: 杂志文章,评审
doi:10.1007/s00421-003-1036-7
更新日期:2004-04-01 00:00:00
abstract:PURPOSE:To determine whether mechanomyographic (MMG) determined contractile properties of the biceps brachii change during exercise-induced hypertrophy and subsequent disuse atrophy. METHODS:Healthy subjects (mean ± SD, 23.7 ± 2.6 years, BMI 21.8 ± 2.4, n = 19) performed unilateral biceps curls (9 sets × 12 repetition...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-016-3469-9
更新日期:2016-12-01 00:00:00
abstract::Some studies suggest that performing strength training may cause alterations on the hypothalamic pituitary axis, resulting in steroid hormone variations. Intense training has been associated to slow the concentrations of estrogens and progesterone in women. The main purpose of this study was to evaluate the effects of...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-012-2575-6
更新日期:2013-06-01 00:00:00
abstract::The aim of this study was to determine the timecourse of recovery of immunoendocrine responses following prolonged cycling. With the approval of the Ethics Committee, ten healthy men (age 21.6+/-0.9 years, height 1.77+/-0.01 m, body mass 66.9+/-1.8 kg, VO2max 54.2+/-2.0 ml kg(-1) min(-1); means+/-SEM) performed either...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-007-0529-1
更新日期:2007-11-01 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:PURPOSE:In tachymetabolic species, metabolic rate increases disproportionately with body mass, and that inter-specific relationship is typically modelled allometrically. However, intra-specific analyses are less common, particularly for healthy humans, so the possibility that human metabolism would also scale allometri...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-020-04515-1
更新日期:2021-01-01 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::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::To study the process of O(2) transport to tissue, we investigated how capillary perfusion is controlled in response to changes in tissue O(2) levels in skeletal muscle. Capillary red blood cell (RBC) velocity and perfused capillary recruitment were measured in rabbit tenuissimus muscle at various ambient oxygen tensio...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-005-1315-6
更新日期:2005-06-01 00:00:00
abstract::Near-infrared finger photoplethysmograms were recorded and double-normalized pulse volumes (DNPV = DeltaV(b)/V(b); V(b) = total blood volume in the fingertip, DeltaV(b) = pulsatile component of V(b)) were calculated in ten subjects during, immersion of the contralateral hand in water at three different temperatures (4...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/PL00013788
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:Besides mechanical loading of the back, physiological strain is an important risk factor for low-back pain. Recently a passive exoskeleton (SPEXOR) has been developed to reduce loading on the low back. We aimed to assess the effect of this device on metabolic cost of repetitive lifting. To explain potential eff...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-019-04284-6
更新日期:2020-02-01 00:00:00
abstract::The purpose was to compare self-chosen pace during ten repetitions of 60 m running sprints performed on a level surface (SPL), or when running uphill (SPU) or downhill (SPD) on a 4.7% slope. When expressed as percent of maximal running speed for corresponding condition, SPD was lower than SPL (95.28 +/- 1.93 vs. 97.31...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-008-0957-6
更新日期:2009-03-01 00:00:00
abstract:PURPOSE:Contract-relax (CR) stretching increases range of motion (ROM) substantively, however its use in athletic environments is limited as the contractions performed in a highly stretched position require partner assistance, are often painful, and may induce muscle damage. Therefore, the acute effects of performing t...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-015-3320-8
更新日期:2016-03-01 00:00:00
abstract:PURPOSE:The aim of the study is to examine the relationships between increments in resting blood flow and isometric maximal voluntary contraction (MVC) force reduction, muscle soreness, and swelling after eccentric contractions (ECs). METHODS:Twenty-one young healthy men (age 20.8 ± 1.6 years; height 172.0 ± 5.3 cm; w...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-020-04442-1
更新日期:2020-10-01 00:00:00
abstract::The present study examined the effect of hyperbaric oxygen (HBO) on the formation of 2,3-dihydroxybenzoic acid (2,3-DHBA) and 2,5-dihydroxybenzoic acid (2,5-DHBA), the products of salicylate trapping of hydroxyl free radicals, and glutamate release in the striatum during acute ischemia and reperfusion. Non-HBO rats (n...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1229-9
更新日期:2010-02-01 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:PURPOSE:A critical limitation with transcutaneous neuromuscular electrical stimulation is the rapid onset of muscle fatigue. We have previously demonstrated that spatially distributed sequential stimulation (SDSS) shows a drastically greater fatigue-reducing ability compared to a single active electrode stimulation (SE...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-013-2807-4
更新日期:2014-04-01 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::The objective of the present study was to relate changes in certain muscle characteristics and indicators of metabolism in response to endurance training to the concomitant changes in time to exhaustion (T(lim)) at a work rate corresponding to maximal oxygen uptake VO(2speak). Eight healthy sedentary subjects pedalled...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-005-1325-4
更新日期:2005-07-01 00:00:00
abstract::The aim of this study was to determine the effect of different types of active warm-up stimuli of muscle activation on explosive jumping performance after short (5 min postwarm-up) and long (6 h postwarm-up) recovery periods following warm-up. Twelve trained volleyball players (21-24 years) performed different types o...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-007-0440-9
更新日期:2007-07-01 00:00:00
abstract::Recent investigations have suggested that changes in contractile protein expression contribute to reductions in skeletal muscle function during congestive heart failure (CHF). Myosin heavy chain (MHC), a major contractile protein, has been shown to undergo alterations in protein isoform expression during CHF. The purp...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-002-0615-3
更新日期:2002-06-01 00:00:00
abstract:PURPOSE:Polyphenolic curcumin is known to have potent anti-inflammatory effects; thus the present study investigated the hypothesis that curcumin ingestion would attenuate muscle damage after eccentric exercise. METHODS:Fourteen untrained young men (24 ± 1 years) performed 50 maximal isokinetic (120°/s) eccentric cont...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-015-3170-4
更新日期:2015-09-01 00:00:00
abstract::The aim of the study was to examine the effects of fluid replacement on thermoregulation and cycling performance in hot, humid conditions. Six male cyclists (PPO = 426 +/- 39 W) performed six 80 km time trials. Subjects replaced 0% (0); 33% (33); 66% (66); or 100% (100) of the weight lost during an "ad libitum" trial ...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-008-0876-6
更新日期:2009-01-01 00:00:00
abstract::This study presents an original approach to the effect of regular sporting activity on the metabolism of lipids. We have examined the physiological variations of lipoparticles (Lp) AI, Lp B:CIII, Lp B:E, Lp (a) and the principal lipid markers in 21 high-level rugby players and men of the same age group who take part i...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-002-0613-5
更新日期:2002-11-01 00:00:00
abstract:PURPOSE:The twofold purpose of this study was (1) to compare differences in development and etiology of neuromuscular fatigue at different plantar flexor (PF) muscle-tendon unit (MTU) lengths between boys and men, and (2) to examine the relationship between musculotendinous stiffness and peripheral fatigue. METHODS:Ni...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-020-04305-9
更新日期:2020-03-01 00:00:00
abstract::The aim of the present study was to determine whether glutamine ingestion, which has been shown to enhance the exercise-induced increase in the tricarboxylic acid intermediate (TCAi) pool size, resulted in augmentation of the rate of increase in oxidative metabolism at the onset of exercise. In addition, the potential...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-006-0324-4
更新日期:2007-01-01 00:00:00