Abstract:
:During an exhaustive graded bicycle spiroergometer test, several arterial blood samples were taken from six type I diabetics and seven normal controls for determination of catecholamines and parameters of carbohydrate and lipid metabolism. In both groups during exercise, glucose remained unchanged, and lactate associated metabolic acidosis was compensated by respiratory gas exchange. Diabetics showed an impaired exercise-induced response of adrenaline and noradrenaline (62 +/- 8 to 176 +/- 24 and 98 +/- 6 to 612 +/- 175 pg X ml-1), respectively, compared to controls (55 +/- 6 to 1213 +/- 720 and 95 +/- 17 to 1710 +/- 506 pg X ml-1). Free glycerol increased to an equivalent extent in both groups. Simultaneously produced free fatty acids decreased at high work loads in diabetics. In addition to insulin deficiency and impaired catecholamine secretion, diabetics showed high values of growth hormone, ACTH, and cortisol. These may be responsible for the high values of free glycerol and free fatty acids. At maximum the FFA values decreased in both groups, although levels of lactate and pyruvate were high. It is suggested that insulin deficiency is the reason for the disturbed hormonal and metabolic response to exhaustive exercise and reduces physical fitness in diabetics.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Jakober B,Schmülling RM,Eggstein Mdoi
10.1055/s-2008-1026021subject
Has Abstractpub_date
1983-05-01 00:00:00pages
104-8issue
2eissn
0172-4622issn
1439-3964journal_volume
4pub_type
杂志文章abstract::T-lymphocytes were determined by rosette formation with sheep erythrocytes in the peripheral blood obtained from 30 healthy aged subjects who were practicing Taichiquan (88 style) exercise and 30 age-matched normal aged who served as a control group. At rest the total number of T-lymphocytes and the number of active T...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:
更新日期:1989-06-01 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::The purpose of this study was to analyse adaptations in propulsion technique and gross efficiency in novice able-bodied subjects during the initial phase of learning hand-rim wheelchair propulsion to music. 22 able bodied participants performed wheelchair propulsion (1.1 m·s(-1)) followed by a VO(2) peak test on a whe...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0030-1268439
更新日期:2011-02-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1038490
更新日期:2008-11-01 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
pub_type: 临床试验,杂志文章
doi:10.1055/s-2007-972863
更新日期:1996-07-01 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::During the period 1975-1981, 221 persons were treated conservatively at Tampere University Central Hospital for an acute knee ligament injury. A total of 194 patients (88%) were reexamined 8 +/- 3 years after the injury. In the clinical and radiological results, there were no significant differences between competitiv...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025682
更新日期:1987-10-01 00:00:00
abstract::Quadriceps atrophy and weakness can persist for years after anterior cruciate ligament reconstruction (ACLR). We evaluated the effectiveness of a home-based blood flow restriction (BFR) exercise program to increase quadriceps size and strength several years after ACLR. Nine adults with ACLR (5±2 yrs post-surgery, ≤90%...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0961-1434
更新日期:2019-09-01 00:00:00
abstract::Stretching of an activated muscle prior to its shortening enhances its performance during the concentric contraction. This phenomenon has been interpreted to be primarily due to the utilization of elastic energy stored in the series elastic elements of the muscle during the stretch. However, reflex potential has also ...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1055/s-2008-1026076
更新日期:1982-08-01 00:00:00
abstract::We aimed to describe the changes in footprint characteristics after 2 types of resistance training sessions performed at different intensities. 18 young subjects (8 men and 10 women) volunteered for the study. All of them performed 2 different resistance training sessions, one with light loads (LS) and the other with ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0031-1275354
更新日期:2011-08-01 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::We have studied the effect of exercise on the percentage of free plasma estradiol 17-beta (E2) and testosterone (T) in 13 untrained (UT) and 8 trained (marathon runners, MR) eumenorrheic women. All women performed a standardized bicycle ergometer (UT) or treadmill (MR) test in the follicular and luteal phases of their...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025721
更新日期:1987-12-01 00:00:00
abstract::The aim of this study was to compare the effects of aerobic and mental training on cognitive function and to determine if the association of the two techniques shows better results. Thirty-two healthy elderly subjects (60 - 76 years) were assigned to one of four groups: aerobic training, mental training, combined aero...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2002-33735
更新日期:2002-08-01 00:00:00
abstract::The aim of this study was to compare hormonal changes in plasma total testosterone (T), cortisol (C), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and prolactin (P) in two world-class teams, both consisting of 9 top male pro-cyclists, during a real sports situation (the 1998 "Vuelta a España", a 3-week...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1055/s-2002-35532
更新日期:2002-11-01 00:00:00
abstract::The peripheral adaptation process associated with repeating eccentric training over a longer period of time was studied in m. vastus lateralis of eleven healthy males aged 24 +/- 4 years. The maximal dynamic concentric muscle strength was only slightly improved after 8 weeks of training. However, eccentric work capaci...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1026031
更新日期:1983-08-01 00:00:00
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
pub_type: 杂志文章
doi:10.1055/s-2007-971908
更新日期:1998-04-01 00:00:00
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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::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::A field test for the determination of anaerobic threshold (AT) based on the relationship between work intensity and heart rate was previously developed in adult runners (4) and then applied in various sports activities (3, 5, 9). In the current study the same relationship between running speed (S) and heart rate (HR) ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024924
更新日期:1989-10-01 00:00:00
abstract::Cyclists often use heart rate limits or power output zones, obtained from lactate parameters during incremental exercise testing, to control training intensity. However, the relationship between heart rate or power output, and blood lactate can be changed by several factors including dehydration. Therefore, in the cur...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2005-837460
更新日期:2005-12-01 00:00:00
abstract::Adequate reliability studies of knee flexion and extension are currently available for isokinetic measurements, but not for the shoulder joint. For this reason, this study examines the variability (%) in the determination of peak torque (PT) and the angle at peak torque (AP) in the test-retest procedure. Differentiati...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1021106
更新日期:1994-01-01 00:00:00
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journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-819952
更新日期:2004-02-01 00:00:00
abstract::Evidence suggests that myofibers from endurance trained skeletal muscle display unique contractile parameters. However, the underlying mechanisms remain unclear. To further elucidate the influence of endurance training on myofiber contractile function, we examined factors that may impact myofilament interactions (i. e...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1351334
更新日期:2014-06-01 00:00:00
abstract::The principal aim of our study was the determination of the effectiveness of a standardized ratio, allometric scaling model and a gamma function model in normalizing the isometric torque data of spinal cord patients and healthy subjects. For this purpose we studied a sample of 21 healthy males and 23 spinal cord injur...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0032-1301889
更新日期:2012-06-01 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
pub_type: 杂志文章,评审
doi:10.1055/s-2007-972697
更新日期:1997-03-01 00:00:00
abstract::We used continuous electrocardiographic monitoring according to Holter's method for a tentative evaluation of the prognostic value of the main electrocardiographic peculiarities of the "athlete's heart". Five hundred and eighty-seven Holter recordings were performed in 164 top athletes divided into three groups: dynam...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024674
更新日期:1991-04-01 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::Muscle fiber distribution and muscle enzyme activity (m. vastus lat.) were investigated in 10 elite sprint cyclists and 12 nonathletes. The ratio of fast to slow muscle fibers was 2:3 in cyclists and 3:2 in nonathletes. The mean diameter of each muscle fiber type was significantly higher in the athletes. The mean enzy...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025778
更新日期:1986-10-01 00:00:00
abstract::The aim of this study was to investigate the influence of a 4-week electromyostimulation training program on the strength of the knee extensors and the vertical jump performance of 10 basketball players. Electromyostimulation sessions were carried out 3 times weekly; each session consisted of 48 contractions. Testing ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2000-3837
更新日期:2000-08-01 00:00:00
abstract::The effect of 60 h without sleep upon maximal oxygen intake was examined in 12 young women, using a cycle ergometer protocol. The arousal of the subjects was maintained by requiring the performance of a sequence of cognitive tasks throughout the experimental period. Well-defined oxygen intake plateaus were obtained bo...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024936
更新日期:1989-12-01 00:00:00