Bioenergetic characteristics in prepubertal swimmers. Comparison with active and non-active boys.

abstract：:The purpose of this study was to establish if provision of CHO altered the mucosal immune and salivary cortisol responses to intermittent exercise in the heat. In a double-blind design, 10 males undertook soccer-specific intermittent exercise on a motorized treadmill on 2 occasions, each over 90 min and separated by 1...

journal_title：International journal of sports medicine

authors： Sari-Sarraf V,Doran DA,Clarke ND,Atkinson G,Reilly T

更新日期：2011-09-01 00:00:00

abstract：:β1-adrenergic receptors (ADRB1) and Gαs proteins (GNAS) play important roles in the regulation of cardiac function. The present study sought to investigate whether ADRB1 Arg389Gly (rs1801253), GNAS -1211 G/A (rs6123837) and GNAS 2291 C/T (rs6026584) variants are associated with left ventricular function and exercise t...

journal_title：International journal of sports medicine

authors： Alves AJ,Goldhammer E,Ribeiro F,Eynon N,Ben-Zaken Cohen S,Duarte JA,Viana JL,Sagiv M,Oliveira J

更新日期：2013-03-01 00:00:00

abstract：:The purpose of this study was to analyse intramuscular perfusion response in ultrastructural muscle lesions, by applying contrast-enhanced ultrasound (CEUS) to a delayed onset muscle soreness (DOMS) model. Results of this analysis were compared to high-resolution 3 Tesla MRI T2-weighted sequences. 14 healthy participa...

journal_title：International journal of sports medicine

authors： Kellermann M,Heiss R,Swoboda B,Gelse K,Freiwald J,Grim C,Nagel A,Uder M,Wildner D,Hotfiel T

更新日期：2017-10-01 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

authors： Matejek N,Weimann E,Witzel C,Mölenkamp G,Schwidergall S,Böhles H

更新日期：1999-10-01 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

authors： Lesinski M,Prieske O,Beurskens R,Behm D,Granacher U

更新日期：2018-01-01 00:00:00

abstract：:Cardiac vagal tone (CVT), a key determinant of resting heart rate (HR), is progressively withdrawn with incremental exercise and nearly abolished at maximal effort. While maximal HR decreases with age, there remains a large interindividual variability of results for any given age. In the present study, we hypothesized...

journal_title：International journal of sports medicine

authors： Duarte CV,Araujo CG

更新日期：2013-06-01 00:00:00

abstract：:Ulnar and posterior tibial motor nerve conduction velocity (NCV) was assessed in 91 athletes and nonathletes. The athletes included male weight lifters, swimmers, jumpers and male and female track sprinters and distance runners. NCV of the weight lifters was significantly faster than that of the other groups for both ...

journal_title：International journal of sports medicine

authors： Kamen G,Taylor P,Beehler PJ

更新日期：1984-02-01 00:00:00

abstract：:The phase angle is used to evaluate nutritional status and is an indicator of cellular health. Cardiorespiratory fitness and body composition are strong indicators of health during adolescence. We aimed to evaluate if body composition and cardiorespiratory fitness have an association with phase angle among adolescents...

journal_title：International journal of sports medicine

authors： Langer RD,de Fatima Guimarães R,Gonçalves EM,Guerra-Junior G,de Moraes AM

更新日期：2020-08-01 00:00:00

abstract：:Hemoglobin oxygen binding properties and acid-base status were investigated in Colombian athletes (A) and controls (C) from Cali (C-1000 m) and Bogotá (B-2600 m). [Hb] and Hct values were not influenced by altitude, but Hct was lower in the blood of athletes (in Cali 2.6%, in Bogotá 1.4%). Both training and altitude p...

journal_title：International journal of sports medicine

authors： Schmidt W,Dahners HW,Correa R,Ramirez R,Rojas J,Böning D

更新日期：1990-02-01 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

authors： Davis JE,Fortney SM

更新日期：1997-04-01 00:00:00

abstract：:The aim of this study was to determine the effects of gender and chronic hyperactivity (training) on musculo-tendinous stiffness and joint flexibility and to examine in vivo whether those stiffness parameters were correlated. Thus, maximal isometric voluntary contraction, series elastic stiffness during wrist flexion ...

journal_title：International journal of sports medicine

authors： Cornu C,Maïsetti O,Ledoux I

更新日期：2003-05-01 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

authors： Many GM,Jenkins NT,Witkowski S,Damsker JM,Hagberg J

更新日期：2013-03-01 00:00:00

abstract：:The effects of exercise training and acute exercise on the immune system were investigated in rats. For chronic exercise training, the rats ran on a drum exerciser at the intensity of about 60-70% of maximal oxygen consumption (VO2max) for 30 min and then extended up to 60 min per day, 5 days per week for 10 weeks. Th...

journal_title：International journal of sports medicine

authors： Lin YS,Jan MS,Chen HI

更新日期：1993-02-01 00:00:00

abstract：:The purpose of this study was to test the hypothesis that the ACE DD genotype is unfavorably associated with the ultimate power-oriented performance. To test the hypothesis we recruited a total of 848 subjects including 55 international level power-oriented athletes (High-performance), 100 national level power-oriente...

journal_title：International journal of sports medicine

authors： Kim CH,Cho JY,Jeon JY,Koh YG,Kim YM,Kim HJ,Park M,Um HS,Kim C

更新日期：2010-01-01 00:00:00

abstract：:External counterpulsation (ECP), an electrocardiogram-led sequential compression of lower limbs, has been recently proposed for sports recovery, but research is scant. This study examined the effects of an ECP session upon neuromuscular function (vertical jump and torque/velocity characteristics), biochemical response...

journal_title：International journal of sports medicine

authors： Collins R,McGrath D,Horner K,Eusebi S,Ditroilo M

更新日期：2019-08-01 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

authors： Vieira RP,Duarte AC,Santos AB,Medeiros MC,Mauad T,Martins MA,Carvalho CR,Dolhnikoff M

更新日期：2009-09-01 00:00:00

abstract：:It has been suggested in previous studies that the difference in endurance performance between males and females is related to gender-specific differences in cardiac function. Other studies have not equated males and females for physical condition, and this may have contributed to the findings. The purpose of this stu...

journal_title：International journal of sports medicine

authors： Hutchinson PL,Cureton KJ,Outz H,Wilson G

更新日期：1991-08-01 00:00:00

abstract：:It has been recently suggested that high and sustained lactate levels may elicit increases in peripheral B-EN concentrations (16). We have observed elevated and sustained lactate concentrations in response to a low-volume resistive exercise protocol (14) that were similar to those from other exercise protocols that pr...

journal_title：International journal of sports medicine

authors： Kraemer RR,Acevedo EO,Dzewaltowski D,Kilgore JL,Kraemer GR,Castracane VD

更新日期：1996-01-01 00:00:00

abstract：UNLABELLED:Often blood screening is repeatedly done in elite athletes although training and competition can affect its results and normal ranges for highly active individuals are widely unknown. This study was conducted to provide reference data in professional soccer players. 467 male soccer players of the 2 highest G...

journal_title：International journal of sports medicine

authors： Meyer T,Meister S

更新日期：2011-11-01 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

authors： Goosey-Tolfrey V,Keil M,Brooke-Wavell K,de Groot S

更新日期：2016-09-01 00:00:00

abstract：:Five male endurance-trained runners completed an interval running session of 15 x 1-min intervals at 95% VO2 max. Venous blood samples were collected pre-exercise and then immediately, 30- and 60-minutes post-exercise. The response of cultures of total lymphocytes to mitogen (phytohaemagglutinin) were significantly re...

journal_title：International journal of sports medicine

authors： Hinton JR,Rowbottom DG,Keast D,Morton AR

更新日期：1997-02-01 00:00:00

abstract：:The electromyographic (EMG) activity of seven muscles of the trunk and lower extremity in five male masters level ski racers during a slalom turn in both alpine skiing and in-line skating was recorded using a telemetry system. Measurements were made on separate testing days using slopes commonly used in each activity ...

journal_title：International journal of sports medicine

authors： Zeglinksi CM,Swanson SC,Self BP,Greenwald RM

更新日期：1998-10-01 00:00:00

abstract：:Earlier studies of endurance athletes have shown decreased levels of secretory IgA and an increased frequency of upper respiratory tract (URT) infections after periods of hard training. In this study, 14 world-class canoeists were studied during very hard physical training, after lower-intensity training combined with...

journal_title：International journal of sports medicine

authors： Lindberg K,Berglund B

更新日期：1996-04-01 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

authors： Garcin M,Vandewalle H,Monod H

更新日期：1999-01-01 00:00:00

abstract：:Thirty-three untrained subjects of both sexes, 18-31 years of age, performed several tests on cycle ergometers. Maximal aerobic power (MAP) was obtained in a progressive work test. Maximal aerobic capacity (MAC) was measured in a 90-min maximal test and was computed as the total work output during that period. Two all...

journal_title：International journal of sports medicine

authors： Boulay MR,Lortie G,Simoneau JA,Hamel P,Leblanc C,Bouchard C

更新日期：1985-12-01 00:00:00

abstract：:Total body water (TBW) and water turnover rates (WTR) of six competitive male cyclists (CG) and six age-matched sedentary men (SG) were determined using deuterium oxide dilution and elimination. During the 7 day study, individuals in the CG cycled daily outside on average 50 (range 12-146) km at an average speed of 29...

journal_title：International journal of sports medicine

authors： Leiper JB,Pitsiladis Y,Maughan RJ

更新日期：2001-04-01 00:00:00

abstract：:In major track and field competitions, the most risky discipline is the combined event. Therefore, we aimed to record and analyze the incidence and characteristics of sports injuries incurred during the Youth and National Combined Events Championships. During the French Athletics Combined Events Championships in 2010,...

journal_title：International journal of sports medicine

authors： Edouard P,Samozino P,Escudier G,Baldini A,Morin JB

更新日期：2012-10-01 00:00:00

abstract：:This study investigated the effects of marine phytoplankton supplementation on 1) perceived recovery and ground reaction forces in humans following a non-functional overreaching resistance-training program and 2) myogenic molecular markers associated with muscle cell recovery in a rat model. In the human trial, a 5-we...

journal_title：International journal of sports medicine

authors： Sharp MH,Sahin K,Stefan MW,Gheith RH,Reber DD,Ottinger CR,Orhan C,Tuzcu M,Sahin N,Lowery RP,Durkee S,Wilson JM

更新日期：2020-12-22 00:00:00

abstract：:The aim of this study was to establish the presence of postural deficits in subjects with chronic ankle instability (CAI) and to assess the effect of an 8-week balance training program on dynamic postural control. A total of 43 subjects with CAI and 31 controls participated in this case-control study. Participants wit...

journal_title：International journal of sports medicine

authors： De Ridder R,Willems TM,Vanrenterghem J,Roosen P

更新日期：2015-06-01 00:00:00

abstract：:The purpose of the study was to investigate whether severe fatigue, possibly leading to overreaching, could be diagnosed at an early stage by a combination of parameters. Seven well-trained male subjects (age [mean +/- SD]: 25.3 +/- 4.7 yr; body mass: 76 +/- 6.6 kg; VO2max: 61.1 +/- 7 ml.kg(-1).min(-1)) increased thei...

journal_title：International journal of sports medicine

authors： Rietjens GJ,Kuipers H,Adam JJ,Saris WH,van Breda E,van Hamont D,Keizer HA

更新日期：2005-01-01 00:00:00