Abstract:
:Physical exercise activates blood coagulation and enhances fibrinolytic activity. To investigate whether these activations of blood coagulation and fibrinolysis are balanced post-exercise and during the period of recovery, 11 moderately active young men were examined immediately after a standardised cycle ergometer test and during the 24 h period of recovery. Blood samples were obtained at rest, immediately after exercise, and 2, 6 and 24 h after exercise. All post-exercise values were corrected for any change in plasma volume. Exercise induced a significant increase in factor VIII activity and this occurred with a significant shortening of activated partial thromboplastin time. A concomitant enhancement of tissue plasminogen activity resulted in significant increases in tissue plasminogen activity antigen and total fibrin/fibrinogen degradation products, and a significant decrease in tissue plasminogen activator inhibitor-1 activity. Increases in coagulation and fibrinolytic activity changed in parallel during exercise. However, during recovery, while the increase in factor VIII activity post-exercise persisted 2 and 6 h into recovery, fibrinolytic activity demonstrated a sharp fall. It is concluded that whereas the enhanced fibrinolytic activity during exercise appears to counterbalance the increase in blood coagulability, this haemostatic balance is not maintained during recovery. This perturbed blood haemostasis could constitute an enhanced risk for coronary artery thrombosis and may contribute to exercise-related cardiovascular events.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Lin X,El-Sayed MS,Waterhouse J,Reilly Tdoi
10.1055/s-2007-971109subject
Has Abstractpub_date
1999-04-01 00:00:00pages
149-53issue
3eissn
0172-4622issn
1439-3964journal_volume
20pub_type
临床试验,杂志文章abstract::The magnitude and pattern of the hematocrit (Hct), hemoglobin (Hb), and plasma volume (PV) responses during and upon recovery from two resistance training protocols based on either a ten-repetition maximum (10 RM) or five-repetition maximum (5 RM) resistance was examined. Twelve college-aged male resistance exercise t...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-965108
更新日期:2008-02-01 00:00:00
abstract::The purpose of this study was to determine the reproducibility of time at or above 90 % (t (90 % )VO (2max)) and 95 % (t (95 % )VO (2max)) maximal oxygen uptake during an intermittent treadmill run to exhaustion. Twenty-two distance runners (age 38.0 +/- 7.1 yrs) performed two identical incremental and two identical i...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2006-923856
更新日期:2007-01-01 00:00:00
abstract::Chronic low-grade systemic inflammation plays a role in the development of cardiovascular (CV) disease. Habitual endurance exercise training reduces the risk of CV disease in part through anti-inflammatory mechanisms. The purpose of this study was to investigate the effects of age, endurance training status, and their...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0032-1316317
更新日期:2013-03-01 00:00:00
abstract::The purpose of this study was to establish the content validity of the Rodeo SCAT for the sport of rodeo and bull riding. The study design was comprised of expert consensus and content validation. A modified Ebel procedure was employed to content validate the rodeo SCAT. Content validation using this method includes e...
journal_title:International journal of sports medicine
pub_type: 共识发展会议,杂志文章
doi:10.1055/s-0032-1311651
更新日期:2013-02-01 00:00:00
abstract::Pre-exercise meals containing carbohydrates (CHO) are recommended to athletes, although there is evidence to suggest that a high fat meal prior to exercise increases utilisation of fats yet may not adversely affect performance. This study investigated the effect of a high fat and high CHO pre-exercise meal prior to hi...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1055/s-0032-1321798
更新日期:2013-02-01 00:00:00
abstract::In a study of the effects of motion load on weight-bearing articular cartilage, rabbits were made to run on a treadmill for 1-, 5-, and 30-day periods. One group ran on a level surface, and another ran uphill. In vivo 35S-sulfate bound in glycosaminoglycans (GAG) after running was used as an indicator of the synthesis...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025925
更新日期:1984-12-01 00:00:00
abstract::The present study examined the neuromuscular activation characteristics of the hamstrings during the 'Nordic' hamstrings exercise (NHE) and changes in the eccentric strength of the knee flexors with NHE training. Initially, the normalised root mean square electromyographic (EMG) activity of the hamstrings of both limb...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0032-1304591
更新日期:2012-12-01 00:00:00
abstract::The energy cost of the forms of locomotion discussed throughout this article is summarized in Table 9. This table, as well as the preceding sections of this article, are designed to provide a rather comprehensive and simple set of information for potential readers: medical doctors, who should be able to prescribe to t...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-2008-1025736
更新日期:1986-04-01 00:00:00
abstract::Sprint cycling performance is heavily dependent on mechanical peak power output (PPO) and the underlying power- and torque-cadence relationships. Other key indices of these relationships include maximum torque (TMAX), cadence (CMAX) and optimal cadence (COPT). Two common methods are used in the laboratory to ascertain...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0989-2387
更新日期:2019-12-01 00:00:00
abstract::The aim of this study was to evaluate the effect of swimming exercise, without overloading, on the biomechanical parameters of the calcaneal tendon of rats. 27 male Wistar rats (70 days) were distributed randomly into 2 groups, Control Group (CG; n=15) with restricted movements inside the cage and Swimming Group (SG; ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1345130
更新日期:2013-12-01 00:00:00
abstract::MR measurements can be accurately performed during 4486 km of running, opening a window into in vivo assessment of hindfoot articular cartilage under extreme ultra-endurance loading. This observational cross-sectional study included 22 randomized participants of TransEurope FootRace between Italy and the North Cape, w...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0043-118008
更新日期:2018-01-01 00:00:00
abstract::Mechanical efficiency of positive work (eta+) and elastic behavior of human skeletal muscles were investigated on a special sledge apparatus which allowed the use of the normal stretch-shortening cycle exercises. Twenty-five young men were investigated in a total of 92 exercise situations, in which the intensity of th...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025751
更新日期:1986-06-01 00:00:00
abstract::Although analysis of lactate concentrations with a Yellow Springs Instruments (YSI) automated analyzer has become very popular in Sports Medicine, the accuracy and reliability of this technique has not been carefully studied. Additionally, the influence of a common lysing agent Triton X-100 (TX) on blood lactate measu...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1021231
更新日期:1992-01-01 00:00:00
abstract::The lipolytic and the cardiac responses to 30 min of two different forms of stress--a standardized mental stress test and submaximal bicycle exercise--were investigated in non-obese healthy subjects. This was done by microdialysis of the extracellular space in the abdominal subcutaneous adipose tissue in order to dete...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1021079
更新日期:1994-10-01 00:00:00
abstract::Rugby union is a sport involving high force and frequency impacts making the likelihood of injury a significant risk. The aim of this study was to measure and report the individual and group acute and cumulative physiological stress response during 3 professional rugby games through non-invasive sampling. 24 professio...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1398528
更新日期:2015-06-01 00:00:00
abstract::Perceived exertion has been investigated during incremental exercise to exhaustion with athletes, according to the 6-20 scale proposed by Borg (RPE, 1970) and a new scale based on the estimation of exhaustion time (t(lim)) (Estimated Time Limit or ETL, from 1 to 20; ETL= 21 - 2 n, with n = log2t(lim)). ETL increased l...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-971089
更新日期:1999-01-01 00:00:00
abstract::Uncoupling protein 3 is believed to be involved in total body energy expenditure, including the regulation of fat and glucose metabolism. These biochemical processes may distinguish top ultra-endurance triathletes from slower competitors. The aim of this study was to determine whether the uncoupling protein 3 gene is ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-815850
更新日期:2004-08-01 00:00:00
abstract::Seventeen healthy male volunteers participated in this study designed to compare arterial with both arterialized venous and venous lactate kinetics after short exercise. Blood samples drawn before, during, and after bicycle exercise were analyzed continuously for lactate. A mathematical function incorporating two expo...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024867
更新日期:1989-02-01 00:00:00
abstract::Since the introduction of blood analysis performed before major cycling events in 1997, there have been discussions concerning the quality of the results. The aim of our study therefore was to measure blood samples and compare the results obtained on the field with those obtained in the laboratory. For this it was nec...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-830495
更新日期:2005-04-01 00:00:00
abstract::In order to assess the changes in the cellular immune system, 27 healthy male subjects were selected who participate in leisure-time sports and in whom measurements of the lymphocyte subsets in venous blood were carried out before and after a standardized endurance exercise test (EI, 60 minutes in length, intensity: 6...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024777
更新日期:1990-04-01 00:00:00
abstract::The purpose of the present study was to ascertain whether increase in step frequency at a given velocity during running reduces the lower extremity loading variables, which is associated with tibial stress fracture in runner. We hypothesized that the lower extremity loading variables at a given speed would be minimize...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0031-1291232
更新日期:2012-04-01 00:00:00
abstract::Despite evidence that cancer and its treatments severely reduce cardiorespiratory fitness (CRF), normative data for cancer survivors do not exist. The present study identifies age and gender-specific CRF distributions in a cancer population. The use of cancer-specific normative CRF data may help stratify initial fitne...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1375691
更新日期:2014-12-01 00:00:00
abstract::Biomechanical parameters are often analyzed independently, although running gait is a dynamic system wherein changes in one parameter are likely to affect another. Accordingly, the Volodalen® method provides a model for classifying running patterns into 2 categories, aerial and terrestrial, using a global subjective r...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0035-1555931
更新日期:2016-01-01 00:00:00
abstract::This study analyzes stroke phases and arm and leg coordination during front crawl swimming as a function of swim velocity and performance level. Forty-three swimmers constituted three groups based on performance level. All swam at three different swim velocities, corresponding to the paces appropriate for the 800 m, 1...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2000-8855
更新日期:2000-01-01 00:00:00
abstract::Previous studies have demonstrated conflicting results on the effects of acute exercise on FMD. The aim of the study was to examine brachial artery FMD before and after 3 bouts of acute exercise performed at different intensities. 10 healthy males (mean±SD age: 22±1 years) completed 30 min of cycling at 50, 70 and 85%...
journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0032-1323829
更新日期:2013-05-01 00:00:00
abstract::The aim of the present study was to compare the physiological responses when the crank rate was chosen spontaneously (Ts) or set at +/- 10% (T-10%, T+10%) of the freely chosen rate, during two upper body exercises: i) a sub-maximal test (T(SUB)) in which intensities ranged from 50 to 80% (118.4 +/- 10.2 to 189.5 +/- 1...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-971124
更新日期:1999-05-01 00:00:00
abstract::The purpose of this study was to examine the combined effects of drop-height and surface condition on drop jump (DJ) performance and knee joint kinematics. DJ performance, sagittal and frontal plane knee joint kinematics were measured in jump experienced young male and female adults during DJs on stable, unstable and ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0043-117610
更新日期:2018-01-01 00:00:00
abstract:UNLABELLED:Caffeine has many diverse physiological effects including central nervous system stimulation. Ventilatory threshold and a recently described heart rate variability threshold both have a relationship with autonomic control that could be altered by caffeine consumption. The purpose of this investigation was to...
journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0032-1301904
更新日期:2012-07-01 00:00:00
abstract::The effects of anabolic agents and training on skeletal muscle are believed to be mediated by a variety of growth and transcription factors. Among these regulatory proteins, insulin-like growth factor-I (IGF-I) and androgen receptor (AR) play a crucial role. The purpose of this study was to investigate the effects of ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-820945
更新日期:2004-10-01 00:00:00
abstract::This study examined the physiological responses to cold stimulus during intermittent high-intensity exercise simulating on-snow alpine ski training. 7 male alpine skiers performed intermittent high-intensity exercises composed of 4 bouts of cycling exercise at 140% VO 2max intensity for 30 s with 10-min rests on a cyc...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1353146
更新日期:2014-05-01 00:00:00