Abstract:
:Fluid-regulating hormones [arginine vasopressin (AVP) and aldosterone] as well as electrolytes, plasma volume (PV), and plasma proteins were studied in 16 well-trained male amateur runners (mean age 31.8 years) before t0), immediately after (t1), and 60 min (t2) and 22 h (t3) after a marathon run. Immediately after the run PV was significantly decreased by 12.1%, whereas the concentration of plasma proteins increased by 13.9%, sodium by 5.8 mMol.l-1, and potassium by 0.58 mMol.l-1, respectively. Aldosterone increased by 1089 pg/ml and AVP by 9.0 pg/ml. PV was significantly increased 22 h after the run by 10.6% (P less than 0.001) and plasma proteins were increased by 1.0% (P greater than 0.05), whereas aldosterone and AVP as well as electrolytes returned to control values. At t1, and particularly at t2 and t3, the total plasma protein concentration increased much more than could have been expected from changes of PV. It is suggested that this phenomenon was caused by an influx of proteins into the vascular space. This might also be the reason for the expanded PV especially in the longer recovery period at t3. The volume-regulating hormones (AVP and aldosterone) may play an important role during and immediately after the run but not in the longer recovery period (t2 and t3).
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Röcker L,Kirsch KA,Heyduck B,Altenkirch HUdoi
10.1055/s-2007-1024914subject
Has Abstractpub_date
1989-08-01 00:00:00pages
270-4issue
4eissn
0172-4622issn
1439-3964journal_volume
10pub_type
杂志文章,评审abstract::Wheelchair users undergo changes in body composition as a result of disability. In this study the distribution of bone mineral, lean and fat mass was assessed in highly-trained female wheelchair athletes and a reference group by dual-energy X-ray absorptiometry (DXA). The transferability of anthropometric equations co...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0028-1105941
更新日期:2009-04-01 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 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::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::Exercise induced proteinuria is a common phenomenon in high performance sports. Based on the appearance of so called "effort urines" in routine doping analysis the purpose of this study was to investigate the influence of exercise induced proteinuria on IEF profiles and SDS-PAGE relative mobility values (rMVs) of endo...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0030-1249083
更新日期:2010-06-01 00:00:00
abstract::We compared 35 prepubertal girls, 9 artistic gymnasts and 13 rhythmic gymnasts with 13 nonphysically active controls to study the effect of gymnastics on bone and muscle mass. Lean mass, bone mineral content and areal density were measured by dual energy X-ray absorptiometry, and physical fitness was also assessed. Th...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2006-924397
更新日期:2007-05-01 00:00:00
abstract::The present study assessed the effectiveness of an RPE learning protocol for improving the validity of the Borg 6-20 RPE scale for self-regulating exercise intensity during Indoor Cycling (IC). 16 healthy adults performed 5 IC sessions. Heart rate (HR) was continuously monitored. In sessions 1 and 5, participants perc...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1353166
更新日期:2014-05-01 00:00:00
abstract::The purpose of this study was to assess the agreement in body composition measurements of wheelchair athletes using skinfolds, bio-impedance analysis (BIA) and air displacement plethysmography (ADP) relative to dual-energy X-ray absorptiometry (DXA). A secondary objective was to develop new skinfold prediction equatio...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0042-104061
更新日期:2016-09-01 00:00:00
abstract::Leptin, the product of the ob-gene, is specifically released by adipocytes. In addition to its metabolic function it seems to affect the feedback-mechanisms of the hypothalamic-pituitary-gonadal-axis. We studied 13 female juvenile elite gymnasts with anorexia athletica (AA) and 9 female patients with anorexia nervosa ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-1999-8834
更新日期:1999-10-01 00:00:00
abstract::To understand the influence of gender on oxygen consumption of respiratory muscles (VO(2)resp), 32 healthy subjects participated in the study (16 males, 16 females). They were divided into four groups: young males, young females, older males and older females. We used a closed circuit device which allowed a continuous...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1055/s-2003-43267
更新日期:2003-11-01 00:00:00
abstract::To investigate the effect of exercise on adiponectin in young healthy human males, we examined serum total adiponectin and high-molecular-weight (HMW) adiponectin in newly recruited male soldiers who participated in an 8-week basic military training (BMT). A total of 95 males (mean age, 18.79±1.50 years) were sampled ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0770-6093
更新日期:2019-01-01 00:00:00
abstract::Neuromuscular activity of the lower leg is dependent on the task performed, speed of movement and gender. Whether training volume influences neuromuscular activity is not known. The EMG of physically active persons differing in running mileage was analysed to investigate this. 55 volunteers were allocated to a low (LM...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0031-1286250
更新日期:2012-01-01 00:00:00
abstract::We recently demonstrated that creatine supplementation increased some features of lung allergic sensitization in mice. On the other hand, other studies have shown that aerobic exercise inhibited allergic airway inflammation and remodeling. We hypothesized that aerobic exercise may decrease the exacerbatory effects of ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0029-1224176
更新日期:2009-09-01 00:00:00
abstract::The relationships between perceived exertion and the physiological variables oxygen uptake (VO2), heart rate (HR) and blood lactate concentration (HLa) were studied in tethered swimming. Seven male and ten female subjects swam at five submaximal intensities. The degree of perceived exertion was measured both on the ca...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-973025
更新日期:1995-08-01 00:00:00
abstract::The present study was designed to investigate the neuronal control and biomechanical effects of stumbling reactions. To induce these perturbations, a specially prepared treadmill was used which allowed rapid and powerful changes of treadmill speed. EMG recordings of leg muscles were related to cinematic movement patte...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025785
更新日期:1986-12-01 00:00:00
abstract::Little if any research has examined the variability in time to exhaustion (TTE) during submaximal treadmill running. This study investigated the test-retest reliability of submaximal treadmill TTE as a measure of endurance capacity. 16 endurance-trained males (n=14) and females (n=2) completed a run to exhaustion at 7...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0035-1555928
更新日期:2016-03-01 00:00:00
abstract::This study examined whether professional footballers with previous biceps femoris long head (BFLH) injury in the last 3-years present a smaller proximal aponeurosis (Apo-BFLH) size compared to footballers with no previous injury. We examined the Apo-BFLH and BFLH size using magnetic resonance imaging and tested the kn...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-1028-7322
更新日期:2020-07-01 00:00:00
abstract::This study investigated sex-specific effects of surface instability on kinetics and lower extremity kinematics during drop jumping and landing. Ground reaction forces as well as knee valgus and flexion angles were tested in 14 males (age: 23±2 years) and 14 females (age: 24±3 years) when jumping and landing on stable ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1384549
更新日期:2015-01-01 00:00:00
abstract::A prospective study of acute injuries from sports and physical exercise was carried out during 1 year in a total population of a municipality with 31,620 inhabitants. Data on exposure were collected: the number of participants in each sport, the hours of participation, and number of weeks in the season per year. The n...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1025052
更新日期:1988-12-01 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 effects of muscle temperature on the development of muscular power are discussed. Temperature influences power (both metabolic and mechanical) by means of its effects on the rate of ATP hydrolysis and/or resynthesis. One would therefore expect reduced power outputs at cold muscle temperatures in humans. However, t...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1024634
更新日期:1992-10-01 00:00:00
abstract::Fourteen male physical education students performed a single bout of running until exhaustion on the treadmill at 22 km/h and 7.5% slope. They received single oral doses of 100 mg bupranolol (nonselective beta-blockade), 100 mg metoprolol (beta-1-selective blockade), and placebo 60-90 min before running. Arterialized ...
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-2008-1026050
更新日期:1983-11-01 00:00:00
abstract::The aims of this pilot study were to investigate how a novel sagittal plane kinematic measurement - the lower extremity contact angle (LECA) - relates to the landing dynamics of elite male volleyball athletes with and without patellar tendinopathy. The LECA was defined as the angle between the ground and the line conn...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1395586
更新日期:2015-05-01 00:00:00
abstract::The ActiPed (FitLinxx) is a uniaxial accelerometer, which objectively measures physical activity, uploads the data wirelessly to a website, allowing participants and researchers to view activity levels remotely. The aim was to validate ActiPed's step count, distance travelled and activity time against direct observati...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0032-1323723
更新日期:2013-05-01 00:00:00
abstract::The oxygen uptake (VO2) attained during a constant speed 800-m pace trial on a treadmill is less than the maximal VO2 (VO2max) in male middle-distance runners with a high VO2max (i.e., > 65 ml x kg (-1) x min (-1)). We therefore investigated whether the VO2 attained was influenced by the pacing strategy adopted. Eight...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-837468
更新日期:2006-01-01 00:00:00
abstract::The between-days variability in ascertained gain factors for calibration of a wearable respiratory inductance plethysmograph (RIP) and validity thereof for the repeated use during exercise were examined. Consecutive 5-min periods of standing still, slow running at 8 km·h(-1), fast running at 14 km·h(-1) (male) or 12 k...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1385864
更新日期:2015-01-01 00:00:00
abstract::Climbing Mount Everest needs an acclimatization period of 3 to 4 weeks between 3000 and 6000 m. In order to reduce this period of time spent in dangerous conditions, an experience of pre-acclimatization was performed with 5 elite alpinists (4 male, 1 female), aged 30 +/- 4 yrs (mean +/- SD), before their attempt to cl...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024644
更新日期:1992-10-01 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::To examine the acute influence of pedaling cadence on arterial stiffness in young men, 15 healthy men (21.8±0.4 years) underwent 3 trials in self-control crossover design: non-cycling control (CON), cycling at 60 (RPM60) and 90 rounds per min (RPM90). Cycling lasted 30 min at intensity of 35% heart rate reserve. Arter...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0753-5008
更新日期:2019-01-01 00:00:00
abstract::The shock-absorbing characteristics of the heel pad in vivo were examined in adults (N = 16) and 7-year-old children (N = 5) using a drop-impact tester (wt = 5 kg). Impact velocities were 0.72 m/s and 0.93 m/s. It was found that in adults the average peak deceleration was 11.6 G at an impact velocity of 0.93 m/s. The ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1021184
更新日期:1993-08-01 00:00:00