Abstract：
:The aim of the present study was to compare the iron status of 19 top-level soccer players and 20 male control subjects. All players showed no impairment of physical performance and had a dietary iron intake adequate to cover the iron losses. Serum iron, TIBC, % transferrin saturation and serum ferritin were not significantly different in athletes and controls: serum haptoglobin was significantly lower in the former than in the latter, the result probably indicating an increase in resting intravascular hemolysis. Since the formed Hb-Hp complex is taken up and metabolized by hepatocytes, it has been suggested that in soccer players a redistribution of iron stores occurs among tissue compartments. A multiparametric hematological monitoring of iron metabolism, just as in runners, is therefore necessary in these athletes, too, in order to detect subjects at risk of real iron deficiency. The pharmacological iron supplementation should be limited to these subjects and only when clinical evidence of reduced tissue iron supply is present.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Resina A,Gatteschi L,Giamberardino MA,Imreh F,Rubenni MG,Vecchiet Ldoi
10.1055/s-2007-1024712subject
Has Abstractpub_date
1991-10-01 00:00:00pages
453-6issue
5eissn
0172-4622issn
1439-3964journal_volume
12pub_type
杂志文章abstract：:To determine the effects of aerobic fitness on pregnancy and the newborn, 20 primigravid subjects were studied throughout gestation and immediately postpartum. The subjects were classified as trained (T = 10) or untrained (UT = 10) based on the heart rate response to submaximal cycle ergometry testing done in each tri...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025645
更新日期：1987-04-01 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
pub_type： 杂志文章
doi：10.1055/a-1152-4865
更新日期：2020-08-01 00:00:00
abstract：:The relationship between running intensity and the accumulation of hypoxanthine and uric acid in plasma was studied in four well-trained runners. The runners each performed several 800-m runs at different velocities, each run being performed on separate days. Venous blood samples were collected before and at regular i...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024844
更新日期：1990-12-01 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：:Prevalence of Achilles tendinopathy increases with age leading to a weaker tendon with predisposition to rupture. Conclusive evidence of the influence of age and pathology on Achilles tendon (AT) properties remains limited, as previous studies are based on standardized isometric conditions. The study investigates the ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0042-108198
更新日期：2016-11-01 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 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
pub_type： 杂志文章
doi：10.1055/s-0043-112501
更新日期：2017-10-01 00:00:00
abstract：:During the world junior speed skating championship 2002 all athletes (60 males, 56 females) were subjected to hematologic blood testing one day before the competition as requested by International Skating Union--ISU. This study aimed to obtain hematological reference values for junior athletes, whilst the influence of...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2005-865676
更新日期：2006-04-01 00:00:00
abstract：:To determine the effects of widely varying amounts of cushioning upon vertical force (VF) parameters, ten male subjects, (mean weight = 68.0 kg) ran at a speed of 4.5 m . s-1 (6 min/mile pace) and contacted a Kistler force platform. Two shoes were tested: a hard one and a softer shoe that had 50% more cushioning as me...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1026043
更新日期：1983-11-01 00:00:00
abstract：:The anaerobic threshold (AnT) seems to be not only a physiologic boundary but also a transition after which swimmers technique changes, modifying their biomechanical behaviour. We expanded the AnT concept to a biophysical construct in the four conventional swimming techniques. Seventy-two elite swimmers performed a 5×...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/a-0975-9532
更新日期：2020-05-01 00:00:00
abstract：:Despite the vigorous nature of rock/pop drumming, there are no precise data on the energy expenditure of this activity. The aim of this study was to quantify the energy cost of rock/pop drumming. Fourteen male drummers (mean±SD; age 27±8 yrs.) completed an incremental drumming test to establish the relationship betwee...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0033-1337905
更新日期：2013-10-01 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：: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：:While phosphorous magnetic resonance spectroscopy ((31)P-MRS) and near-infrared spectroscopy (NIRS) provide methods for measuring spinal muscle function non-invasively, their reliability is not established. The aim of this study was assess the reliability (ICC) and error magnitude (CV%) of measurements of muscle phosp...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0034-1372639
更新日期：2014-12-01 00:00:00
abstract：:This study evaluated the biceps femoris (BF), rectus femoris (RF), and vastus lateralis (VL) activation and activation ratios of a variety of resistance training exercises characterized by knee extension, and determined if subject strength or gender affects these variables. The exercises evaluated included the leg ext...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1038785
更新日期：2009-01-01 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：:Little information exists about the efficacy of various brace designs to restrict inversion during lateral movements. The purpose of the study was to determine whether semi-rigid stirrup (AirCast Sport Stirrup), semi-rigid modified stirrup (Malleoloc), or a soft, sleeve design (Swede-O) brace varied in their abilities...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-971151
更新日期：1999-08-01 00:00:00
abstract：:Controversy exists as to whether plasma volume (PV) expansion has the potential to increase maximal oxygen uptake (VO2max). In the present study, VO2max and exercise time to fatigue were measured in nine untrained men when plasma volume (PV) was normal and then again on the next day following two levels of PV expansio...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1024774
更新日期：1990-04-01 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
pub_type： 杂志文章
doi：10.1055/s-2007-972838
更新日期：1996-04-01 00:00:00
abstract：:The aim of this study was to investigate whether rs41274853 in the 3'-untranslated region of the ciliary neurotrophic factor receptor gene (CNTFR) is associated with elite sprint/power athletic status and assess its functional significance. A total of 211 Japanese sprint/power track and field athletes (62 internationa...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0035-1564257
更新日期：2016-05-01 00:00:00
abstract：:Serum testosterone concentration was determined before and after physical activities of different duration. The subjects under study were: (1) 7 competitive walkers before and after a 20-km race (average race time 1 h 30 min); (2) 9 middle-distance runners before and after 1-h training; (3) 16 marathon runners before ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2008-1025914
更新日期：1984-10-01 00:00:00
abstract：:Hypertension is not uncommon in childhood and adolescence; vascular and renal causes predominate. Non-pharmacologic therapy, including exercise, may lower blood pressure (BP). There are several articles relating to the use of exercise as a therapy for high BP. Most of these show a beneficial effect. The "dose" of exer...
journal_title：International journal of sports medicine
pub_type： 杂志文章,评审
doi：10.1055/s-2000-8497
更新日期：2000-11-01 00:00:00
abstract：:This study compared rectal temperature (Tre), heat sensation and sweating between obese and non-obese boys during cycling in the heat. Participants (aged 12-15 years) were 17 obese and 16 non-obese (BMI=29.4±4.3 and 16.8±1.7 kg · m⁻², respectively) boys. They cycled for 30-min (50-55% VO(2peak)) in a climatic chamber ...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1301314
更新日期：2012-06-01 00:00:00
abstract：:The effect of recovery duration on performance and fatigue pattern during short exercises was studied including and excluding the flywheel inertia. Subjects (11 males and 11 females) performed a force-velocity test to determine their optimal force (f (opt)). On the following day, subjects performed randomly 4 series o...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2003-45262
更新日期：2004-04-01 00:00:00
abstract：:Secretory IgA (S-IgA) levels in stimulated salvia were measured before and after a maximal treadmill test in a population of 175 young adults (84 men, 91 women). Habitual physical activity levels of this population were measured by a standardized interview, and scores were obtained for the amount of time and intensity...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-2007-1025024
更新日期：1988-08-01 00:00:00
abstract：:We studied the effects of a twelve months endurance-training program on exercise-induced change in blood contents in thirteen rowers. A standardized testing-session (18 km rowing at 80 % of VO2max) was performed 19 times during the training program. Capillary blood samples were taken at rest and immediately post-exerc...
journal_title：International journal of sports medicine
pub_type： 临床试验,杂志文章
doi：10.1055/s-2003-37194
更新日期：2003-01-01 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：: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：: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：:The present study investigated the difference in blood glucose concentration (Glu) response during an incremental swimming test before and after a ten-week training period and verified whether blood glucose threshold (GT) could be determined in competitive swimmers. 7 elite male university swimmers participated in thi...
journal_title：International journal of sports medicine
pub_type： 杂志文章
doi：10.1055/s-0031-1279778
更新日期：2011-11-01 00:00:00
