Abstract:
:Haemostasis has been studied by several authors during exposure to altitude hypoxia. On acute induction to hypoxia, platelet count, platelet aggregability and bleeding time are normal; an increase of thromboxane released from platelets and of prostacyclin, released from endothelial cells is observed; coagulation factors are unchanged except of F. VIII which is increased; modified antithrombin III (ATm) are normal; fibrinopeptide A is increased in subjects with pulmonary edema and fibrinolytic activity after venous occlusion is normal. In chronic hypoxia, during a stay at 6542 m (Mt. Sajama), we found in 7 subjects an important increase in D. Dimer (p < 0.001) that seems to correspond to an activation of coagulation and a decrease of F. VIII R. Cof/F. VIII R. Ag ratio which suggests an endothelial cell damage.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Le Roux G,Larmignat P,Marchal M,Richalet JPdoi
10.1055/s-2007-1024592subject
Has Abstractpub_date
1992-10-01 00:00:00pages
S49-51eissn
0172-4622issn
1439-3964journal_volume
13 Suppl 1pub_type
杂志文章,评审abstract::The aim of the present study was to analyze the effects of age on cardiorespiratory fitness (CRF), muscle strength and heart rate (HR) response to exercise adaptation in women in response to a long-term twice-weekly combined aerobic and resistance exercise program. 85 sedentary women, divided into young (YG; n=22, 30....
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1351332
更新日期:2014-05-01 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::Natural immunity, including that of the natural killer (NK) cells, is strongly influenced by physical exercise, but the physiological significance of the reported changes in NK cells after exercise training is as yet unclear. The exercise effect is likely mediated by interactions between the central nervous and endocr...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-2000-1447
更新日期:2000-05-01 00:00:00
abstract::We investigated the protective effect of Erythropoietin (EPO) analogue rHuEPO on renal injury induced by acute exhaustive exercise in the rat. Rats were randomly allocated to one of 3 groups: normal control (C), exhaustive exercise test (ET) and EPO pre-treatment (rHuEPO 2 000 U/kg) plus ET (EPO+ET). Compared with con...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0030-1265205
更新日期:2010-12-01 00:00:00
abstract::The aim of the study was to examine the associations between maximal and submaximal field tests with match physical activity and biological maturation in youth football players. Sixty-eight youth football players (U14, U15, U16, U17) performed maximal and submaximal field endurance tests. Biological maturity was estim...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0938-5431
更新日期:2019-09-01 00:00:00
abstract::We investigated the effects of vibration (35 Hz, 45 Hz and 55 Hz) as countermeasure locally applied to unloading hind limbs on bone, muscle and Achilles tendon. 40 female Sprague Dawley rats were divided into 5 groups (n=8, each): tail-suspension (TS), TS plus 35 Hz/0.3 g vibration (TSV35), TS plus 45 Hz/0.3 g vibrati...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1358468
更新日期:2014-06-01 00:00:00
abstract::Pulse oximetry allows non-invasive monitoring of arterial oxygen saturation (SO2). To study the validity of pulse oximetry, comparative measurements were performed. During exhaustion limited exercise SO2-values measured by pulse oximetry (SO2puls), calculated SO2-values (algorithms of Kelman, Severinghaus, and Siggaar...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024756
更新日期:1990-02-01 00:00:00
abstract::Bike shock absorption systems reduce the energy variation induced by terrain irregularities, leading to a greater comfort. However, they may also induce an increase in energy expenditure for the rider. More specifically, cross-country racers claim that rear shock absorption systems generate significant energy loss. Th...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1055/s-2001-16242
更新日期:2001-08-01 00:00:00
abstract::A review of trekking deaths from 1984 to mid-1987 showed a death rate of 15/100,000 trekkers. Altitude sickness deaths accounted for 3/23 (13%) of these deaths. Recently, we followed up on our original study by compiling the number and causes of trekking deaths in Nepal from mid-1987 through 1991. The overall number o...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024601
更新日期:1992-10-01 00:00:00
abstract::Food restriction has a great impact on skeletal muscle mass by inducing muscle protein breakdown to provide substrates for energy production through gluconeogenesis. Genetic models of hyper-muscularity interfere with the normal balance between protein synthesis and breakdown which eventually results in extreme muscle ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0032-1312605
更新日期:2013-03-01 00:00:00
abstract::The nutrition of 57 native Bolivian boys living at high altitude (HA) in La Paz (+/- 4000 m) and of 63 boys living at low altitude (LA) in St. Cruz (+/- 400 m) is described. The dietary information was obtained with a 24-h recall method, by interviewing the child and mother. The food items are listed in household meas...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1021121
更新日期:1994-04-01 00:00:00
abstract::The purpose of this study was to investigate the effect of sprint interval training (SIT) compared to control group (CG). 29 Judoists were assigned to SIT group (n=11, age 20.00±1.10 years) and CG (n=18, age 19.94±1.16 years). There were no significant changes in body fat and aerobic performance (VO2max, HRmax, and HR...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0031-1283183
更新日期:2011-12-01 00:00:00
abstract::The development of intermittent endurance capacity, its underlying mechanisms and role in reaching professional level in soccer was investigated. The sample included 130 talented youth soccer players aged 14-18, who became professional (n = 53) or non-professional (n = 77) players in adulthood. In total 229 Interval S...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0029-1243254
更新日期:2010-03-01 00:00:00
abstract::The aim of this study was to investigate the effect of short-term, moderate intensity and low volume endurance training on gonadal hormone profile in untrained men. Fifteen young, healthy men performed an endurance training of 5-week duration on a cycle ergometer. Before and after the exercise program all participants...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0029-1202340
更新日期:2009-07-01 00:00:00
abstract::During an exhaustive graded bicycle spiroergometer test, several arterial blood samples were taken from six type I diabetics and seven normal controls for determination of catecholamines and parameters of carbohydrate and lipid metabolism. In both groups during exercise, glucose remained unchanged, and lactate associa...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1026021
更新日期:1983-05-01 00:00:00
abstract::To study the effects of long-term, home-based exercise on physical fitness and cardiovascular risk factors of middle-aged nonsmoking males, a controlled study was conducted in 61 sedentary Swiss men. Thirty-nine men were randomly allocated to jog 2 h/week for 4 months on an individually prescribed and heart-rate-contr...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1055/s-2007-1024832
更新日期:1990-12-01 00:00:00
abstract::The study was performed on healthy volunteers subjected to submaximal physical exercise (75% VO2max). Activities of catalase (CT) (EC 1.11.1.6), glutathione peroxidase (GPO) (EC 1.11.1.9), superoxide dismutase (ZnCu-SOD) (EC 1.15.1.1) and malonyldialdehyde (MDA) concentration in blood platelets before and after physic...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024655
更新日期:1991-02-01 00:00:00
abstract::The purpose of this study was to examine the effect of different loads on repetition speed during single sets of repetitions to failure in bench press and parallel squat. Thirty-six physical active men performed 1-repetition maximum in a bench press (1 RM (BP)) and half squat position (1 RM (HS)), and performed maxima...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-872825
更新日期:2006-09-01 00:00:00
abstract::The purpose of this study was to compare acute mechanical and metabolic effects of 2 sessions of resistance training equated by volume and total resting time but with different set configuration: sets to failure (FS) vs. distribution of rest between each repetition (NFS). 10 male judoists completed a session consistin...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0031-1299699
更新日期:2012-05-01 00:00:00
abstract::Acute aerobic exercise produces post-exercise hypotension (PEH). Chinese populations have lower prevalence of cardiovascular disease compared to Caucasians. PEH may be associated cardiovascular disease through its influence on hypertension. The purpose of this study was to compare PEH between Caucasian and Chinese sub...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1390493
更新日期:2015-03-01 00:00:00
abstract::The first aim of this study was to verify the occurrence of the EMG threshold (EMG (Th)) in each of eight lower limb muscles (vastus lateralis [VL], vatus medialis [VM], rectus femoris [RF], semimembranosus [SM], biceps femoris [BF], gastrocnemius lateralis [GL] and medialis [GM], and tibialis anterior [TA]) during in...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-865787
更新日期:2006-06-01 00:00:00
abstract::As of 2017, the international football federation introduced the change of direction ability test (CODA) and the 5×30 m sprint test for assistant referees (ARs) and continued the 6×40 m sprint test for field referees (FRs) as mandatory tests. The aim of this study was to evaluate the association between performance in...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0577-4073
更新日期:2018-07-01 00:00:00
abstract::Intense exercise promotes long-term gains in cognitive functions. On the other hand, intense exercise may result in acute effects not clearly determined for cognitive performance. A condition of stochastic intensity ranging from moderate to maximal efforts is part of sports like cycling, in which cognitive integrity i...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-1114-6170
更新日期:2020-06-29 00:00:00
abstract::Orthostatic tolerance is impaired following an acute bout of exercise. This study examined the effect of fluid ingestion following treadmill exercise in restoring the cardiovascular responses to an orthostatic stress. Five men (age, 29.6 +/- 3.4 yrs) were exposed to a graded lower body negative (LBNP) pressure protoco...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-972615
更新日期:1997-04-01 00:00:00
abstract::Eighteen male marathon runners (mean marathon performance: 2 h 36 min, SD = 7.0 min; VO2 max = 64.1 +/- 15.1 ml/kg . min-1) were submitted to a needle biopsy in the suprailiac region and to various measurements of body fatness: percent body fat (% fat), seven skinfold thicknesses, and mean fat cell diameter. Basal and...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025853
更新日期:1985-10-01 00:00:00
abstract::The purpose of this study was to evaluate the accuracy and the repeatability of a new running computer system (RS800sd, Polar, Kempele, Finland) which included the measurement of running speed (RS) and stride rate (SR). Eight well-trained triathletes participated in this study. First, they completed an incremental con...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0028-1105936
更新日期:2009-05-01 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:PURPOSE:The modified Dmax method can accurately determine the second lactate threshold (LT2), which is valuable for predicting aerobic performance and prescribing exercise. The purpose of this study is to determine if the modified Dmax method can accurately find thresholds in VE (VT2), VCO2 (VCO2T), RER (RERT), and RR ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0043-125448
更新日期:2018-04-01 00:00:00
abstract::Long-term side effects of high doses of anabolic androgenic steroids self-administration were evaluated in this study. Twenty male bodybuilders, voluntarily starting steroid self-administration, were followed every 6 months over 2 years. Physical examination, haematological, metabolic and endocrine variables, semen an...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-965808
更新日期:2008-08-01 00:00:00
abstract::The possible peripheral and/or central origin in the mechanisms responsible for day-time fluctuation in maximal torque of the triceps surae muscle were investigated with a special emphasis on antagonist muscle coactivation. Eleven healthy male subjects (physical education students) took part in this investigation. The...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-837618
更新日期:2006-03-01 00:00:00