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-exercise to analyse a wide range of serum concentrations. During exercise, glucose and lactate concentrations stabilized after only five training weeks and did not evolve from that point. Transport and hepatic protein concentrations increased with exercise up to the 15th week (p = 0.03), and remained stable from that point (p = 0.02). Evolution of exercise-induced change in alpha 1 -acid glycoprotein concentration revealed protein metabolism adaptations to training. Change in alpha 1 -acid glycoprotein concentrations were exactly opposite to that of urea and alpha 1 -antitrypsin (p = 0.01 and 0.002, respectively). Immunoglobulin concentrations exhibited important increases up to the 6th training week (p < 0.05), and a global stabilization was observed from that point. However, analysis of IgG subclasses highlighted significant changes that could not be found with the study of total IgG concentrations. Evolution of the exercise-induced change in Apo-A 1 /Apo-B concentrations ratio was also more informative about lipid metabolism than the Apo-A 1 and Apo-B concentrations taken individually. Indeed, evolution of metabolic changes during exercise should be carefully monitored during training to avoid interpretative errors on the training status of athlete.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Petibois C,Cazorla G,Déléris Gdoi
10.1055/s-2003-37194subject
Has Abstractpub_date
2003-01-01 00:00:00pages
36-42issue
1eissn
0172-4622issn
1439-3964journal_volume
24pub_type
临床试验,杂志文章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
pub_type: 杂志文章
doi:10.1055/s-2007-1024696
更新日期:1991-08-01 00:00:00
abstract::Aerobic exercise performance decreases upon ascent to altitude whereas anaerobic performance remains unchanged. Although the effects of 1 - 3 wk of altitude acclimatization on both aerobic and anaerobic exercise performance have been well studied, the effects of short-term altitude acclimatization (i.e., 45 h) on thes...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-872823
更新日期:2006-08-01 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::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
pub_type: 杂志文章,评审
doi:10.1055/s-2007-971943
更新日期:1998-10-01 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::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
pub_type: 杂志文章
doi:10.1055/s-2007-972815
更新日期:1996-02-01 00:00:00
abstract::This study examined the effects of a pre-experimental period of arm exercise followed by a 24-h carbohydrate (CHO)-poor intake, intended to reduce initial hepatic glycogen levels, on substrate and endocrine responses during prolonged CHO-loaded leg exercise. Seven subjects pedaled a cycle ergometer for 60 min at 62% V...
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-2008-1025897
更新日期:1984-06-01 00:00:00
abstract::Over the past 25 years sport climbing has developed from an elite extreme sport subculture pursued by few into a mainstream recreational sport enjoyed globally by climbers of all ages, climbing abilities, and with pre-existing health conditions. As the demands and grades of climbing difficulty have increased over this...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-0028-1112143
更新日期:2009-06-01 00:00:00
abstract::This study aims to investigate the changes in the mechanical properties of quadriceps muscle following a sub-maximal concentric-eccentric stepping exercise protocol. Twenty-four untrained healthy subjects aged 21.9 +/- 0.55 years were asked to perform a 10-minute stepping exercise where the dominant leg worked eccentr...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-965337
更新日期:2008-03-01 00:00:00
abstract::Little information is available regarding the relative effectiveness of various treadmill exercise protocols in eliciting maximal oxygen consumption (VO2 max) values in children. In this study of 10- to 12-year-old boys, running protocols produced significantly higher VO2 max levels compared with walking, but there we...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025636
更新日期:1987-02-01 00:00:00
abstract::Volleyball players commonly complain of pain in the hypothenar area. Fatigue fracture of the pisiform bone is suggested as a cause of this sport incapacity. The diagnostic importance of oblique and axial X-ray views of the Wrist is demonstrated. Early treatment by immobilization for 6 weeks usually results in complete...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1026064
更新日期:1982-02-01 00:00:00
abstract::The goal of this study was to examine the hypothesis that the difference in the 200-m sprint performance of amputee and able-bodied sprinters is due to a shorter step length rather than a lower step frequency. Men's elite-level 200-m races with a total of 16 able-bodied, 13 unilateral transtibial, 5 bilateral transtib...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0035-1564171
更新日期:2016-02-01 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::Physical exercise is associated with increases of serum and salivary levels of cortisol. The concomitant increase in serum lactate has been implicated as one of the mechanisms responsible for adrenocortical activation. We evaluated the responses of serum lactate and serum and salivary cortisol to an acute bout of high...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-830449
更新日期:2005-11-01 00:00:00
abstract::The purpose of this study was to: (1) verify the aerobic requirement (AR) of bench stepping (BS); (2) determine the effect of leg length (LL), bench height (BH), stepping rate (SR), body weight (BW), and fat free mass (FFM) on the AR of BS; and (3) compare the HR and VO2 of BS with treadmill walking/running (TM). Twen...
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-2007-1021156
更新日期:1993-04-01 00:00:00
abstract::To study the hypothesis that more severe damage, caused by controlled lengthening (L) contractions, results in greater myofiber hypertrophy compared to increase in fiber size followed shortening (S) contractions, tibialis anterior muscles of anesthesized male Wistar rats were subjected to 240 either L or S contraction...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2000-8869
更新日期:2000-02-01 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
pub_type: 杂志文章
doi:10.1055/s-2007-972608
更新日期:1997-02-01 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::Alpine spelunking is practiced in darkness, isolation, cold and high humidity. In this paper we study the acute haematological effects of prolonged strenuous activity in five spelunkers who spent about 20 hours in a 700-meter deep cave without resting much or sleeping. On four occasions, we measured their red cell cou...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-964978
更新日期:2007-09-01 00:00:00
abstract::Circulatory leukocytes vary significantly in response to acute bouts of exercise. However, little is known concerning the adaptability of this response to chronic intense exercise training. We investigated the circulating leukocytic response to acute exercise in trained athletes during a 28-day intense exercise traini...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1021252
更新日期:1992-02-01 00:00:00
abstract::To study the relationship between the onset of an increase in dyspnea and ventilatory threshold (VT) in children with congenital heart impairment, sixteen young subjects underwent a cardiopulmonary exercise test with dyspnea perception and ventilatory gas exchange assessments. Dyspnea score was measured from a visual ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2006-924396
更新日期:2007-04-01 00:00:00
abstract::The six-minute walk test (6MWT) is an inexpensive, quick and safe tool to evaluate the functional capacity of patients with heart failure and chronic obstructive pulmonary disease. The aim of this study was to determine the reproducibility of the 6MWT in overweight and obese individuals. We thus undertook a prospectiv...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0029-1231043
更新日期:2009-10-01 00:00:00
abstract::The ventilatory (anaerobic) threshold during short-term exercise has been defined as the O2 uptake (VO2) immediately below the VO2 at which pulmonary ventilation (VE) increases disproportionally relative to VO2 and the ventilatory threshold for long-term exercise as the VO2 immediately below the VO2 at which the VE co...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025730
更新日期:1986-02-01 00:00:00
abstract::This study determined the concurrent validity and reliability of force, velocity and power measurements provided by accelerometry, linear position transducer and Samozino's methods, during loaded squat jumps. 17 subjects performed squat jumps on 2 separate occasions in 7 loading conditions (0-60% of the maximal concen...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1385886
更新日期:2015-02-01 00:00:00
abstract::The objective of the study is to describe two cases of proximal tibiofibular ganglion cysts in high level athletes. In May 2003 and March 2005 two athletes (one tennis player in the top eighty of the Italian national ranking and a gymnast belonging to the Italian rhythmic gymnastics national team) were referred to our...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-989440
更新日期:2008-08-01 00:00:00
abstract::The postural control of ten male soccer players with functional instability (FI) of the ankle joint, i.e., recurrent sprains and/or a feeling of giving way, was studied before and after ankle disk training. Postural control was studied by means of stabilometry and an optoelectronic movement recording system. In the pr...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024996
更新日期:1988-04-01 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::Meniscocapsular separations are often seen in knees with other intra-articular pathology. The consequences of these tears with regard to knee contact mechanics are currently unknown, and the biomechanical advantages of repair have not been measured. We hypothesize that tears to the meniscocapsular junction will cause ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1398656
更新日期:2015-06-01 00:00:00
abstract::The O2 equivalent of lactic acid accumulation in blood was estimated from data on ten subjects acclimatized to altitudes up to 6500 m in the course of a Mt. Everest expedition. The calculated value of the O2 equivalent of La by standard least squares regression was 2.07 +/- 0.4 l O2 for a rise of blood lactic acid con...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024850
更新日期:1990-02-01 00:00:00
abstract::Measurement of skeletal muscle strength gains increasing importance as outcome parameter in patients with chronic heart failure. This study aimed at establishing short-term reliability of isokinetic strength measurements of knee extensor and flexor muscles in 38 patients with chronic heart failure. Strength tests were...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2001-11360
更新日期:2001-01-01 00:00:00