Abstract:
PURPOSE:Autonomic assessment might be useful in training management. We planned to assess whether oscillatory metrics of RR variability (such as LFnu) would be more efficient than static indices from low order statistics (RR variance) at discriminating laying rest from stand posture, as an analog of a shift to sympathetic dominance. METHODS:We studied a large population of elite Olympic athletes: a total of 406 athletes (162 females and 244 males, of similar age 21.7 and 24.4 years) participating to the selection for the upcoming 2016 Olympic games. We employed various methods to extract autonomic indices from RR variability and employed a stepwise statistical approach combining factor and discriminant analysis. RESULTS:We observed that that relative power of oscillatory components from spectral analysis of RR variability (such as LF or HF in nu) and indices from symbolic analysis (particularly 0V) clearly outperform RR variance in discriminating between two physiological conditions (laying rest and stand) related to posture and autonomic activation. CONCLUSIONS:In world class Olympic athletes we have shown that a small subset of RR variability indices, related to sympathovagal balance, may be more appropriate than RR variance to assess excitatory sympathetic autonomic responsiveness of the SA node. These findings may have practical implications for the use of RR variability in guiding training and predicting success in competitions.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Sala R,Spataro A,Malacarne M,Vigo C,Tamorri S,Benzi M,Lucini Ddoi
10.1007/s00421-016-3337-7subject
Has Abstractpub_date
2016-04-01 00:00:00pages
815-22issue
4eissn
1439-6319issn
1439-6327pii
10.1007/s00421-016-3337-7journal_volume
116pub_type
杂志文章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::Intermittent hypoxic exposure with exercise training is based on the assumption that brief exposure to hypoxia is sufficient to induce beneficial muscular adaptations mediated via hypoxia-inducible transcription factors (HIF). We previously demonstrated (Mounier et al. Med Sci Sports Exerc 38:1410-1417, 2006) that leu...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-008-0928-y
更新日期:2009-03-01 00:00:00
abstract:PURPOSE:The primary purpose of this study was to investigate whether a single session of spinal manipulation (SM) increases strength and cortical drive in the lower limb (soleus muscle) of elite Taekwondo athletes. METHODS:Soleus-evoked V-waves, H-reflex and maximum voluntary contraction (MVC) of the plantar flexors w...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-018-3799-x
更新日期:2018-04-01 00:00:00
abstract::A group of 26 sedentary adults [mean age 48.4 (SD 6.4) years] were allocated randomly into either a non-exercising control group (CON, n =9) or an exercise group (EX, n = 17) that trained 3 days a week for 12 weeks using a total body recumbent stepper (TBRS). Training intensity and duration progressed from 50% of hear...
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/s004210100435
更新日期:2001-07-01 00:00:00
abstract:PURPOSE:The purposes of this study were to evaluate the effect of endurance training on central fatigue development and recovery. METHODS:A control group was compared to a training group, which followed an 8-week endurance-training program, consisting in low-force concentric and isometric contractions. Before (PRE) an...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-015-3123-y
更新日期:2015-07-01 00:00:00
abstract::Force generated between the left mandible of violinists and the chinrest of the violin was examined using a force-sensing chinrest developed in this study. A strain-gauge force sensor was built, and it was fixed between the violin's top plate and a chin cup. Fifteen professional/amateur violinists held the violin stat...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-011-2178-7
更新日期:2012-06-01 00:00:00
abstract::Although pacing-related research is widely reported, no studies have described the consistency of pacing strategies or their associated energetic contributions. This study aimed to investigate the consistency of pacing and energetic outlay by establishing the typical within and between trial variations during simulate...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-010-1818-7
更新日期:2011-08-01 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:PURPOSE:Many studies have failed to show that pre-sleep exercise has a negative effect on sleep onset. However, since only a moderate level of physiological excitement was observed at bedtime in these studies, it remains unclear whether a larger magnitude of physiologic excitement present at bedtime would disrupt sleep...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-014-2873-2
更新日期:2014-09-01 00:00:00
abstract::The purpose of this study was to assess cardiac function and arteriovenous oxygen difference (a-vO(2) difference) at rest and during exercise in young, normal-weight (n = 20), and obese (n = 12) men and women who were matched for age and fitness level. Participants were assessed for body composition, peak oxygen consu...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-010-1554-z
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:Traditional resistance exercise decreases vagal tone up to 30 min after an acute bout of resistance exercise, which may increase the risk of cardiovascular events. However, the effects of resistance exercise with blood flow restriction (BFR) on autonomic modulation are unclear. To evaluate autonomic modulation ...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-019-04201-x
更新日期:2019-10-01 00:00:00
abstract:PURPOSE:This study aimed at identifying the short-term effect of creep deformation on the trunk repositioning sense. METHODS:Twenty healthy participants performed two different trunk-repositioning tasks (20° and 30° trunk extension) before and after a prolonged static full trunk flexion of 20 min in order to induce sp...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-017-3754-2
更新日期:2018-01-01 00:00:00
abstract::This study compared two ankle-mounted pedometers [StepWatch 3 (SW-3(Ankle)) and Activity Monitoring Pod 331 (AMP(Ankle))] and two waist-mounted pedometers [New Lifestyles NL-2000 (NL(Waist)) and Digiwalker SW-701 (SW-701(Waist))] under controlled and free-living conditions. In part I, 20 participants walked on a tread...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-005-0018-3
更新日期:2005-10-01 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:PURPOSE:In cross-country sit-skiing (XCSS), athletes with reduced trunk control predominantly sit with the knees higher than the hips (KH); a position often associated with large spinal flexion. Therefore, to improve spinal curvature a new sledge with frontal trunk support, where knees are lower than hips (KL) was crea...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-017-3596-y
更新日期:2017-06-01 00:00:00
abstract::Intense exercise is known to cause temporary impairments in immune function. Few studies, however, have investigated the effects of intense competitive exercise on immunoendocrine variables in elite team sport athletes. The aim of this study was to evaluate the time course of changes in selected immunoendocrine and in...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1200-9
更新日期:2010-01-01 00:00:00
abstract::In this study, we compared the efficacy of 8 months of low-frequency vibration and a walk-based program in health-related fitness. Twenty-seven postmenopausal women were randomly assigned into two groups: whole-body vibration (WBV) group (n = 18) performed three times/week a static exercise on a vibration platform (6 ...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-009-1067-9
更新日期:2009-07-01 00:00:00
abstract::Free radical production and high catecholamine levels are implicated in the modulation of Na(+), K(+)-ATPase, and Mg(2+)-ATPase activities. The aim of this study was to investigate the effect of the mode of delivery on the above-mentioned enzyme activities in maternal-neonatal erythrocyte membrane. Women with normal p...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-008-0744-4
更新日期:2008-07-01 00:00:00
abstract::This study investigated the physiological and gender determinants of the age-related loss of muscle power in 31 healthy middle-aged adults (aged 40-55 years), 28 healthy older adults (70-85 years) and 34 mobility-limited older adults (70-85 years). We hypothesized that leg extensor muscle power would be significantly ...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-011-2200-0
更新日期:2012-06-01 00:00:00
abstract:PURPOSE:The aim of this study was to evaluate the effectiveness of an exercise protocol designed to induce delayed-onset muscle soreness (DOMS) in paraspinal muscles and its effects on low back functional capacities. METHODS:Twenty-four healthy participants were asked to perform four series of 25 trunk flexion-extensi...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-019-04117-6
更新日期:2019-06-01 00:00:00
abstract:PURPOSE:Electro-induced (EI) muscle actions are largely used in healthy subjects to improve motor performance, in frail/older subjects to limit sarcopenia and mobility loss, and in pathological subjects to restore functional abilities after injury and/or surgical operation. Their effects on motor output (e.g., muscle s...
journal_title:European journal of applied physiology
pub_type: 杂志文章,评审
doi:10.1007/s00421-020-04383-9
更新日期:2020-07-01 00:00:00
abstract:PURPOSE:This study examined the mechanisms for force and power reduction during and up to 48 h after maximal eccentric contractions of the knee extensor muscles in young men and women. METHODS:13 men (22.8 ± 2.6 years) and 13 women (21.6 ± 2.2 years) performed 150 maximal effort eccentric contractions (5 sets of 30) w...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-017-3599-8
更新日期:2017-06-01 00:00:00
abstract::Exercise is the example par excellence of the body functioning as a physiological system. Conventionally we think of the O(2) transport process as a major manifestation of that system linking and integrating pulmonary, cardiovascular, hematological and skeletal muscular contributions to the task of getting O(2) from t...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-011-1955-7
更新日期:2012-01-01 00:00:00
abstract::Pain elicits complex adaptations of motor strategy, leading to impairments in the generation and control of steady forces, which depend on muscle architecture. The present study used a cross-over design to assess the effects of muscle pain on the stability of multidirectional (task-related and tangential) forces durin...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-012-2343-7
更新日期:2012-10-01 00:00:00
abstract::Exercise intolerance in heart transplant recipients (HTR) has a multifactorial origin, involving complex interactions among cardiac, neurohormonal, vascular, skeletal muscle and pulmonary abnormalities. However, the role of these abnormalities may differ as a function of time after transplantation and of many other va...
journal_title:European journal of applied physiology
pub_type: 杂志文章,评审
doi:10.1007/s00421-003-0952-x
更新日期:2003-10-01 00:00:00
abstract::The aim of the present study was to investigate the relationship between physical fitness, heart rate variability (HRV) and cognitive function in 37 male sailors from the Royal Norwegian Navy. All subjects participated in an 8-week training program, after which the subjects completed the initial cognitive testing (pre...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-004-1208-0
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:To investigate the effects of aging on postural control and cognitive performance in single- and dual-tasking. METHODS:A cross-sectional comparative design was conducted in a university motion analysis laboratory. Young adults (n = 30; age 21.9 ± 2.4 years) and older adults (n = 30; age 71.9 ± 6.4 years) were ...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-013-2740-6
更新日期:2013-12-01 00:00:00
abstract::Prolonged immobilization of the human body results in functional impairments and musculoskeletal system deconditioning that may be attenuated by adequate muscle exercise. In a 56-day horizontal bed rest campaign involving voluntary males we investigated the effects of vibration muscle exercise (RVE, 2x6 min daily) on ...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-006-0160-6
更新日期:2006-06-01 00:00:00
abstract::Six men and four women performed, in separate trials, maximal dynamic knee extensions with loads of 15%, 30%, 45% and 60% of maximal isometric knee extension peak torque (MVC). The dynamic extensions were done after postactivation potentiation (PAP) had been induced with a 10-s MVC, and in a control trial without PAP....
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s004210000304
更新日期:2000-12-01 00:00:00
abstract::We developed a rat model of fast-strain muscle injury to examine the relationship between functional deficit and the degree of muscle damage. A single fast strain was applied to the right plantaris (Plt) muscle of adult male rats. A tetanic contraction was induced by stimulating the sciatic nerve. Three types of strai...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s004210100431
更新日期:2001-07-01 00:00:00