abstract：:Cough and chest wall pain at high altitude have only received passing mention in the medical literature. Increased minute ventilation of cold dry air at very high altitude is likely to cause airway irritation. This in turn may result in airway drying, mucus production, postnasal drip from vasomotor rhinitis, and bronc...

journal_title：International journal of sports medicine

authors： Litch JA,Tuggy M

更新日期：1998-04-01 00:00:00

abstract：:In the present prospective longitudinal study 17 male endurance trained athletes (cyclists and triathletes; age 23.4+/-6.7 years, VO2max 61.2+/-7.5 ml x min(-1) x kg(-1); means+/-SD) were investigated both during a state of overtraining syndrome (OT: N=15), mainly induced by an increase of exercise intensity, as well ...

journal_title：International journal of sports medicine

authors： Urhausen A,Gabriel HH,Weiler B,Kindermann W

更新日期：1998-02-01 00:00:00

abstract：:The reproducibility of performance in a laboratory test impacts on the statistical power of that test to detect changes of performance in experiments. The purpose of this study was to determine the reproducibility of performance of distance runners completing a 60 min time trial (TT) on a motor-driven treadmill. Eight...

journal_title：International journal of sports medicine

authors： Schabort EJ,Hopkins WG,Hawley JA

更新日期：1998-01-01 00:00:00

abstract：:The purpose of this study was to determine whether a post-exercise cryotherapy protocol could facilitate recovery of elbow flexor strength and reduce the severity of delayed onset muscle soreness following eccentric exercise. Eight resistance-trained males (23 +/- 3 yr) performed 64 eccentric elbow flexions with each ...

journal_title：International journal of sports medicine

authors： Paddon-Jones DJ,Quigley BM

更新日期：1997-11-01 00:00:00

abstract：:In the last decade the study of the human muscle mechanics and energetics in physiology and pathology underwent a radical change. Indeed, the use of biopsy is being progressively accompanied by non-invasive techniques which allow a more integrative assessment of muscle function in vivo. Magnetic resonance imaging (MRI...

journal_title：International journal of sports medicine

authors： Cerretelli P,Binzoni T

更新日期：1997-10-01 00:00:00

abstract：:Creatine supplementation has become a common practice among competition athletes participating in different sports over the last few years. The mechanism by which supplementary creatine could have potential ergogenic effects would be an increased muscle creatine and phosphocreatine concentration, leading to a higher r...

journal_title：International journal of sports medicine

authors： Mujika I,Padilla S

更新日期：1997-10-01 00:00:00

abstract：:Studies of parental influence on children's physical activity have had different results. Parental effect on physical activity during adolescence is less studied, and three generation studies have not been carried out. The purpose of our study was to examine intra- and intergenerational associations of leisure time ph...

journal_title：International journal of sports medicine

authors： Aarnio M,Winter T,Kujala UM,Kaprio J

更新日期：1997-10-01 00:00:00

abstract：:An in vitro method has been developed of cultivating anatomically intact articular cartilage (humeral head of dog) while excluding both bone tissue and other connective tissues with a condom, which controls changes in hydration and minimizes loss of proteoglycans. Compressive loading experiments were carried out with ...

journal_title：International journal of sports medicine

authors： Müller G,Hanschke M

更新日期：1997-08-01 00:00:00

abstract：:Length and weight for age (1-12 months) charts are presented for the longitudinal Euro-Growth Study. "Weight-for-length", another widely used growth chart, presents a problem from a methodological point of view. Target length values (53-77 cm) are not observed in all infants, leading to truncated age distributions at ...

journal_title：International journal of sports medicine

authors： van't Hof MA,Haschke F

更新日期：1997-07-01 00:00:00

abstract：:Previous studies have demonstrated that full recovery from weight loss may take months or years. The present investigation examined short-term recovery (5 wks "post") of physical performance (muscular strength, muscular power, vertical jump), body composition, metabolic hormones (testosterone, luteinizing hormone, sex...

journal_title：International journal of sports medicine

authors： Nindl BC,Friedl KE,Frykman PN,Marchitelli LJ,Shippee RL,Patton JF

更新日期：1997-07-01 00:00:00

abstract：:Exercise induced pain in the posterior part of the leg is common among runners; the underlying reason for these complaints may be very different. The purpose of the present, controlled study was therefore 1. to confirm a clinically diagnosed deep posterior compartment syndrome by using intramuscular pressure measureme...

journal_title：International journal of sports medicine

authors： Biedert RM,Marti B

更新日期：1997-07-01 00:00:00

abstract：:To assess changes of sex hormones, cortisol, prolactin (PRL) and beta-endorphins in an exhaustive aerobic performance, blood samples were taken in 11 endurance trained runners (R) along an ultra-marathon race of 110 km (T1 before the start, T2 at km 33, T3 at km 75 and T4 immediately after completing the race). Result...

journal_title：International journal of sports medicine

authors： Fournier PE,Stalder J,Mermillod B,Chantraine A

更新日期：1997-05-01 00:00:00

abstract：:The main goal of the preventive intervention study in one community of the German CINDI (Countrywide Integrated Non-Communicable Diseases Intervention programme of the WHO) area was to improve cardiovascular health by reducing the risk factors smoking, hypertension, obesity, hypercholesterolaemia, and by changing sede...

journal_title：International journal of sports medicine

authors： Wiesemann A,Metz J,Nuessel E,Scheidt R,Scheuermann W

更新日期：1997-05-01 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：:Declines in exercise capacity throughout an individual's life span can affect function and can ultimately limit the ability to perform activities of daily living. Along with these changes in exercise capacity and function, studies have reported age-associated changes in several parameters of immune status including de...

journal_title：International journal of sports medicine

authors： Fielding RA,Evans WJ

更新日期：1997-03-01 00:00:00

abstract：:The present study was designed to examine the effects of administration of a GABAergic agonist (Baclofen) on run-time to exhaustion in trained and untrained rats, and on some indicators of fatigue. Run-time to exhaustion on a treadmill set at a speed of 25 m.min-1 was significantly increased in both untrained (p < 0.0...

journal_title：International journal of sports medicine

authors： Abdelmalki A,Merino D,Bonneau D,Bigard AX,Guezennec CY

更新日期：1997-02-01 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：:Over 30 years ago hemodynamic studies on patients with high altitude pulmonary edema (HAPE) excluded the prior contention that the basic cause was left ventricular failure and correctly implicated the pulmonary circulation as the culprit. Physiological studies during the acute stage have revealed a normal pulmonary ar...

journal_title：International journal of sports medicine

authors： Hultgren HN

更新日期：1997-01-01 00:00:00

abstract：:We have studied, on blood samples, the level of immunocompetence (concentration of immune cells, phagocytic process of polymorphonuclear neutrophils, proliferative response of lymphocytes to mitogens), the ascorbic acid content of such immunocompetent cells and the "stress hormone" status (cortisol, ACTH and beta-endo...

journal_title：International journal of sports medicine

authors： Ferrández MD,Maynar M,De la Fuente M

更新日期：1996-11-01 00:00:00

abstract：:We investigated the influence of autonomic blockade (AB) on the left ventricular (LV) diastolic function at rest (R) and during bicycle exercise (EX) in eight endurance-trained (TR) and ten untrained subjects (UT). Two-dimensional and M-mode echocardiography at the parasternal long axis were performed at rest and duri...

journal_title：International journal of sports medicine

authors： Niess A,Roecker K,Mayer F,Heitkamp HC,Dickhuth HH

更新日期：1996-11-01 00:00:00

abstract：:In a group of male distance runners, 23 out of 45 athletes showed decreased serum ferritin values (< 35 micrograms). The high prevalence of a typical iron deficiency in runners was confirmed in a subgroup of eight athletes in which the iron metabolism was studied in detail using radio-iron labelling and liver iron qua...

journal_title：International journal of sports medicine

authors： Nachtigall D,Nielsen P,Fischer R,Engelhardt R,Gabbe EE

更新日期：1996-10-01 00:00:00

abstract：:The hypothesis that blood biochemical measurements of iron (Fe), copper (Cu), magnesium (Mg) and zinc (Zn) nutritional status and dietary intakes of these minerals are useful predictors of 100-yd free-style swimming performance during actual competition was examined in five female and five male collegiate swimmers. Di...

journal_title：International journal of sports medicine

authors： Lukaski HC,Siders WA,Hoverson BS,Gallagher SK

更新日期：1996-10-01 00:00:00

abstract：:Postexercise proteinuria has been observed in healthy adults but there was a need for information in young individuals. Boys and girls (n = 170) from 6 to 18 years of age were submitted to maximal exercise by the 20-meter shuttle run test. Urine collection was made prior to and 30 min after completion of the run. Tota...

journal_title：International journal of sports medicine

authors： Poortmans JR,Geudvert C,Schorokoff K,De Plaen P

更新日期：1996-08-01 00:00:00

abstract：:There is a potential need for the official criterion of testosterone abuse in sport (the urinary concentration ratio of testosterone glucuronide/epitestosterone glucuronide, TG/EG > 6) to be backed-up by some complementary markers, more particularly in cases of physiologically high TG/EG and when there is suspicion of...

journal_title：International journal of sports medicine

authors： Dehennin L,Pérès G

更新日期：1996-07-01 00:00:00

abstract：:The present study was designed to evaluate the influence of starch structure on muscle glycogen resynthesis and cycling performance. Eight male cyclists (22 +/- 1 yr) completed an exercise protocol (DP) to decrease vastus lateralis glycogen concentration. This exercise consisted of 60 min cycling at 75% VO2max, follow...

journal_title：International journal of sports medicine

authors： Jozsi AC,Trappe TA,Starling RD,Goodpaster B,Trappe SW,Fink WJ,Costill DL

更新日期：1996-07-01 00:00:00

abstract：UNLABELLED:To define the respective roles of the periphery and central oxygen transport in the exercise limitation of heart transplanted patients (HTR), we compared 11 HTR (15.1 +/- 10.8 months after transplantation) to six age and weight matched normal controls (C), during an incremental exercise test (30 W/3 min step...

journal_title：International journal of sports medicine

authors： Mettauer B,Lampert E,Petitjean P,Bogui P,Epailly E,Schnedecker B,Geny B,Eisenmann B,Haberey P,Lonsdorfer J

更新日期：1996-05-01 00:00:00

abstract：:To determine the adaptations of the autonomic nervous system in the control of heart rate and blood pressure induced by endurance training, 10 competitive cyclists aged 27 +/- 7 years and 10 age-, weight- and height-matched sedentary controls were subjected to Power Spectral Analysis of the RR interval and of blood pr...

journal_title：International journal of sports medicine

authors： Macor F,Fagard R,Amery A

更新日期：1996-04-01 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：:Physiological characteristics of japanese female classical ballet dancers were investigated in comparison with sedentary women of similar age (non-dancers). Subjects were 20 professional female ballet dancers with a mean age of 26.5 +/- 4.4 years (mean +/- SD) and 66 sedentary women with a mean age of 23.7 +/- 3.6 yea...

journal_title：International journal of sports medicine

authors： Kuno M,Fukunaga T,Hirano Y,Miyashita M

更新日期：1996-02-01 00:00:00

abstract：:This study was designed to compare the effects of three prolonged exercises varying in their intensity and duration, on blood mononuclear cell mobilization and cytokine secretion (IL1(1)-IL(2)). Seven healthy subjects underwent three effort trials (45 % VO(2)max during 4 h - 60% VO(2)max during 3 h - 75 % VO(2)max dur...

journal_title：International journal of sports medicine

authors： Bury TB,Louis R,Radermecker MF,Pirnay F

更新日期：1996-02-01 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：:The aim of the study was to compare the effects of two different models of altering the frequency of strength training sessions of females. The "regular training" (RT) consisted of one training unit every third day over the whole menstrual cycle. The "menstrual cycle triggered training" (MCTT) was characterized by wor...

journal_title：International journal of sports medicine

authors： Reis E,Frick U,Schmidtbleicher D

更新日期：1995-11-01 00:00:00

abstract：:This study was a retrospective examination of the relationship between estimated dietary sodium intake and training-induced changes in plasma volume (PV). It was undertaken to explore one possible explanation for the large individual differences in PV shifts accompanying 3 d of endurance cycling. Ten healthy males rod...

journal_title：International journal of sports medicine

authors： Luetkemeier MJ

更新日期：1995-10-01 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

authors： Ueda T,Kurokawa T

更新日期：1995-08-01 00:00:00

abstract：:Ten young male adults (mean age 46.9 +/- 1.2 yrs) with 9.2 +/- 1.4 years of weight training experience and the ability to parallel squat at least 1.5 times their body mass were selected as subjects. The exercise session consisted of sets of 10 repetitions at 65% 1-RM of the parallel leg squat, with a cadence of one re...

journal_title：International journal of sports medicine

authors： Nieman DC,Henson DA,Sampson CS,Herring JL,Suttles J,Conley M,Stone MH,Butterworth DE,Davis JM

更新日期：1995-07-01 00:00:00

abstract：:This study compared breathing frequency (fB) during a ventilation threshold (VT) test with fB during a simulated 40 km time trial (40TT) to assess whether fB can be used to monitor exercise intensity. Twenty-six male cyclists (mean +/- SD VO2max = 4.42 +/- 0274 l.min-1) performed an incremental VT ergometer test and a...

journal_title：International journal of sports medicine

authors： Neary JP,Bhambhani YN,Quinney HA

更新日期：1995-05-01 00:00:00

abstract：:This study was designed to evaluate recovery of dynamic muscle function following muscle fatigue produced by isokinetic testing. Sixteen physically active males (age = 29.2) performed fatigue and recovery tests on an isokinetic dynamometer (KIN-COM 500H). The fatigue test involved concentric contractions of the quadri...

journal_title：International journal of sports medicine

authors： Schwendner KI,Mikesky AE,Wigglesworth JK,Burr DB

更新日期：1995-04-01 00:00:00

abstract：:We studied 12 highly trained athletes, 6 male ice-hockey players and 6 cross-country skiers (2 females, 4 males). All of them participated in a maximal electrically braked bicycle ergometer test in a hypobaric chamber at the simulated altitude of 3000m (520 mmHg) and in normobaric conditions two days apart in random o...

journal_title：International journal of sports medicine

authors： Koistinen P,Takala T,Martikkala V,Leppäluoto J

更新日期：1995-02-01 00:00:00

abstract：:The alterations in thigh muscle properties of chondromalacia patellae patients during isometric and dynamic endurance tests were studied using a variokinetic knee testing system linked to surface EMG. A total of 41 patients (chondromalacia group) with arthroscopically certified chondromalacia of the patella were studi...

journal_title：International journal of sports medicine

authors： Väätäinen U,Airaksinen O,Jaroma H,Kiviranta I

更新日期：1995-01-01 00:00:00

abstract：:Six successful members of the British Women's Lightweight Rowing Team were assessed before and after two-month (1990) and four-month (1991) periods of weight-reduction controlled by reduced caloric intake, while engaged in their normal physical training. Fat free mass (FFM) was calculated from body weight (BW) by util...

journal_title：International journal of sports medicine

authors： Koutedakis Y,Pacy PJ,Quevedo RM,Millward DJ,Hesp R,Boreham C,Sharp NC

更新日期：1994-11-01 00:00:00