Abstract:
:Exercise-induced muscle damage (EIMD) is a common occurrence following activities with a high eccentric component. Alterations to the torque-velocity relationship following EIMD would appear to have serious implications for athletic performance, particularly as they relate to impairment of maximal intensity exercise. However, this has been studied infrequently. The purpose of this study was to assess the effects of EIMD on maximal intermittent sprint performance. Ten male participants (age 22.4 +/- 3.2 years, height 178.6 +/- 5.2 cm, mass 80.6 +/- 10.7 kg) performed 10 x 6 s cycle ergometer sprints, interspersed with 24 s recovery against a load corresponding to 0.10 kp/kg and 10 x 10 m sprints from a standing start, each with 12 s active (walking) recovery. All variables were measured immediately before and at 30 min, 24, 48 and 72 h following a plyometric exercise protocol comprising of 10 x 10 maximal counter movement jumps. Repeated measures ANOVA showed significant changes over time (all P<0.05) for perceived soreness, plasma creatine kinase activity (CK), peak power output (PPO), sprint time and rate of fatigue. Soreness was significantly higher (P<0.01) than baseline values at all time intervals (3.1, 4.9, 5.5 and 3.2 at 30 min, 24, 48 and 72 h, respectively). CK was significantly elevated (P<0.05) at 24 h (239 IU/l) and 48 h (245 IU/l) compared to baseline (151 IU/l). PPO was significantly lower (P<0.05) than baseline (1,054 W) at all time intervals (888, 946, 852 and 895 W, at 30 min, 24, 48 and 72 h, respectively). The rate of fatigue over the ten cycling sprints was reduced compared to baseline, with the greatest reduction of 48% occurring at 48 h (P<0.01). This was largely attributed to the lower PPO in the initial repetitions, resulting in a lower starting point for the rate of fatigue. Values returned to normal at 72 h. Sprint times over 10 m were higher (P<0.05) at 30 min, 24 h and 48 h compared to baseline (1.96 s) with values corresponding to 2.01, 2.02 and 2.01 at 30 min, 24 h and 48 h, respectively. Values returned to baseline by 72 h. The results provide further evidence that, following a plyometric, muscle-damaging exercise protocol, the ability of the muscle to generate power is reduced for at least 3 days. This is also manifested by a small, but statistically significant reduction in very short-term (approximately 2 s) intermittent sprint running performance. These findings have implications for appropriate training strategies in multiple sprint sports.
journal_name
Eur J Appl Physioljournal_title
European journal of applied physiologyauthors
Twist C,Eston Rdoi
10.1007/s00421-005-1357-9keywords:
subject
Has Abstractpub_date
2005-08-01 00:00:00pages
652-8issue
5-6eissn
1439-6319issn
1439-6327journal_volume
94pub_type
临床试验,杂志文章abstract:PURPOSE:This study investigated the effects of repeated-sprint (RS) training in hypoxia induced by voluntary hypoventilation at low lung volume (RSH-VHL) on physiological adaptations, RS ability (RSA) and anaerobic performance. METHODS:Over a 3-week period, eighteen well-trained cyclists completed six RS sessions in c...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-019-04184-9
更新日期:2019-09-01 00:00:00
abstract:PURPOSE:Oral L-citrulline (Cit) increases plasma L-arginine (Arg) concentration and the production of nitric oxide (NO). NO dilates blood vessels and potentially improves sports performance. The combination of oral Arg and Cit (Arg + Cit) immediately and synergistically increases plasma Arg and nitrite/nitrate (NOx) co...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-019-04097-7
更新日期:2019-05-01 00:00:00
abstract::The diving response is the sequence of cardiovascular, respiratory and metabolic adjustments produced by apnoea and further strengthened by cooling of the facial area and/or hypoxia. This study aimed at comparing the cardiovascular response to diving of trained divers with that of a control group. In this order, 14 tr...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-011-2006-0
更新日期:2012-02-01 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::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::This study was performed to examine the effect of diurnal normobaric hypoxia on hematological parameters. Eleven healthy male volunteers were randomly selected to be in either the hypoxic group (n=6) or the control group (n=5). The hypoxic group was exposed to 8 h of normobaric hypoxia in hypoxic tent systems that eli...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-005-0125-1
更新日期:2006-04-01 00:00:00
abstract:PURPOSE:Different motor units (MUs) in the biceps brachii (BB) muscle have been shown to be preferentially recruited during either elbow flexion or supination. Whether these different units reside within different regions is an open issue. In this study, we tested wheter MUs recruited during submaximal isometric tasks ...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-020-04324-6
更新日期:2020-04-01 00:00:00
abstract:PURPOSE:The curvature constant (W') and asymptote (critical power; CP) of the power-duration relationship are important parameters for explaining cycling performance. Short-duration endurance cycling events rely more heavily on the W'; however, the full mechanistic underpinning of this parameter is yet to be determined...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-018-3807-1
更新日期:2018-03-01 00:00:00
abstract:PURPOSE:This study aimed to examine the effect of acute blood flow restriction during the late recovery phase between two resistance exercise bouts on muscular endurance and oxygenation. METHODS:Amateur male middle- and long-distance runners performed two bouts of one-leg dynamic plantar flexion exercise to failure wi...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-017-3771-1
更新日期:2018-02-01 00:00:00
abstract::In this review, we examine the literature in light of the mechanical principles that govern linear accelerated running. While the scientific literature concerning sprint mechanics is comprehensive, these principles of fundamental mechanics present some pitfalls which can (and does) lead to misinterpretations of findin...
journal_title:European journal of applied physiology
pub_type: 杂志文章,评审
doi:10.1007/s00421-019-04139-0
更新日期:2019-06-01 00:00:00
abstract::According to the literature the steady-state level of phosphocreatine (PCr) has a linear relationship to the workload during muscle exercise intensities below the lactate threshold, whereas this linearity is impaired during exercise intensities above the lactate threshold. The purpose of this study was to investigate ...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-004-1233-z
更新日期:2005-01-01 00:00:00
abstract:PURPOSE:We compared the effects of different protocols of blood-flow restriction training (BFRT) with different occlusion pressures and/or exercise intensities on muscle mass and strength. We also compared BFRT protocols with conventional high-intensity resistance training (RT). METHODS:Twenty-six subjects had each le...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-015-3253-2
更新日期:2015-12-01 00:00:00
abstract::An intermittent exposure to artificial hypergravity with physical exercise by a human centrifuge may provide a countermeasure against various physiological problems after space flight. To test the effects of hypergravity with ergometric exercise on dynamic regulation of heart rate during weightlessness, we quantified ...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-004-1308-x
更新日期:2005-06-01 00:00:00
abstract::To compare the effects of a periodic resistance training (PTR) program with those of a continuous resistance training (CTR) program on muscle size and function, 14 young men were randomly divided into a CTR group and a PTR group. Both groups performed high-intensity bench press exercise training [75 % of one repetitio...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-012-2511-9
更新日期:2013-04-01 00:00:00
abstract:PURPOSE:To compare the increases in upper- and lower-body muscle strength in premenopausal women performing resistance training (RT) alone or alongside concurrent high-intensity interval training (CT). METHODS:Sixteen women (26-40 years) were randomly assigned into two groups that performed either RT or CT. Both group...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-017-3614-0
更新日期:2017-06-01 00:00:00
abstract::The aim of this study was to investigate the role of trunk incline (TI) and projected frontal area (A(eff)) in determining drag during active/passive measurements. Active drag (D(a)) was measured in competitive swimmers at speeds from 0.6 to 1.4 m s(-1); speed specific drag (D(a)/v(2)) was found to decrease as a funct...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1007-8
更新日期:2009-05-01 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::Muscle temperature has a profound effect on the neuromuscular system of young individuals, however, little is known about the effects of altered temperature on the muscles of older individuals. The purpose of this study was to investigate the effect of altered local temperature on maximal torque and electromyography s...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1245-9
更新日期:2010-02-01 00:00:00
abstract::The aim of this study was to examine the magnitude and the origin of neuromuscular fatigue induced by half-squat static whole-body vibration (WBV) exercise, and to compare it to a non-WBV condition. Nine healthy volunteers completed two fatiguing protocols (WBV and non-WBV, randomly presented) consisting of five 1-min...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-013-2590-2
更新日期:2013-06-01 00:00:00
abstract::Energy system contribution during cross-country (XC) skiing races is dependent on several factors, including the race duration, track profile, and sub-techniques applied, and their subsequent effects on the use of the upper and lower body. This review provides a scientific synopsis of the interactions of energy system...
journal_title:European journal of applied physiology
pub_type: 杂志文章,评审
doi:10.1007/s00421-019-04158-x
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:Brain hemodynamics is fundamental for the functioning of the human being. Many biophysical factors affect brain circulation, so that a satisfactory understanding of its behavior is challenging. We developed a mathematical model to simulate cerebral and extracerebral flows and pressures in humans. METHODS:The m...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-018-3971-3
更新日期:2018-11-01 00:00:00
abstract::The aim of this study was to examine the effects of low carbohydrate (CHO) availability on heart rate variability (HRV) responses during moderate and severe exercise intensities until exhaustion. Six healthy males (age, 26.5 +/- 6.7 years; body mass, 78.4 +/- 7.7 kg; body fat %, 11.3 +/- 4.5%; V(O)(2)(max) 39.5 +/- 6....
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1329-6
更新日期:2010-04-01 00:00:00
abstract::The purposes of this study were firstly to compare and investigate localised fatigue in the upper trapezius muscle in various arm positions as assessed by mechanomyographic (MMG) and surface electromyographic (EMG) signals and secondly to study the effects of different normalisation methods on MMG and EMG signals duri...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-002-0655-8
更新日期:2002-08-01 00:00:00
abstract::The aims of this study were to determine the effects of plyometric training on both active and passive parts of the series elastic component (SEC) stiffness, and on geometrical parameters [i.e., muscle architecture, muscle and tendon cross-sectional area (CSA)] of the plantarflexors muscle-tendon complex to assess pos...
journal_title:European journal of applied physiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00421-010-1667-4
更新日期:2011-03-01 00:00:00
abstract::Skin surface cooling has been shown to improve orthostatic tolerance; however, the influence of severe heat stress on cardiovascular and cerebrovascular responses to skin cooling remains unknown. Nine healthy males, resting supine in a water-perfusion suit, were heated to +1.0 and +2.0 degrees C elevation in body core...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1298-9
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:To examine the effects of the world's most challenging mountain ultra-marathon (Tor des Géants(®) 2012) on the energy cost of three types of locomotion (cycling, level and uphill running) and running kinematics. METHODS:Before (pre-) and immediately after (post-) the competition, a group of ten male experience...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-014-2824-y
更新日期:2014-05-01 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::Drowsiness and increased tendency to fall asleep during daytime is still a generally underestimated problem. An increased tendency to fall asleep limits the efficiency at work and substantially increases the risk of accidents. Reduced alertness is difficult to assess, particularly under real life settings. Most of the...
journal_title:European journal of applied physiology
pub_type: 临床试验,杂志文章
doi:10.1007/s00421-003-0807-5
更新日期:2003-05-01 00:00:00
abstract:INTRODUCTION:The interchangeability analysis has been recently proposed to objectively assess whether a newly developed measurement tool can substitute the older ones; this analysis assumes that the measures yielded by the compared tools should differ less than a maximum acceptable value. We aimed to assess the interch...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-020-04374-w
更新日期:2020-06-01 00:00:00
abstract::Whole-body vibration (WBV) leads to a rapid increase in intra-muscular temperature and enhances muscle power. The power-enhancing effects by WBV can, at least in part, be explained by intra-muscular temperature. However, this does not exclude possible neural effects of WBV occurring at the spinal level. The aim of thi...
journal_title:European journal of applied physiology
pub_type: 杂志文章
doi:10.1007/s00421-009-1215-2
更新日期:2010-01-01 00:00:00