Abstract:
:Caffeine enhances endurance performance; however, its effect on accumulated lactate remains unclear. Conversely, taurine, which also enhances endurance performance, decreases accumulated lactate. In this study, the effect of combination of caffeine and taurine on endurance performance was assessed. Mice ran on a treadmill, and the accumulated lactate was measured. In addition, muscle fibers from the gastrocnemius muscle of the mice were stained with ATPase and analyzed. The use of caffeine and taurine over a 2 week period enhanced endurance performance. Moreover, taurine significantly decreased the accumulated concentration of lactate over long running distances. However, the diameter of the cross-sections and ratios of Types I, IIA, and IIB muscle fibers were not affected.
journal_name
Int J Sports Medjournal_title
International journal of sports medicineauthors
Imagawa TF,Hirano I,Utsuki K,Horie M,Naka A,Matsumoto K,Imagawa Sdoi
10.1055/s-0028-1104574subject
Has Abstractpub_date
2009-07-01 00:00:00pages
485-8issue
7eissn
0172-4622issn
1439-3964journal_volume
30pub_type
杂志文章abstract::The effects of muscle temperature on the development of muscular power are discussed. Temperature influences power (both metabolic and mechanical) by means of its effects on the rate of ATP hydrolysis and/or resynthesis. One would therefore expect reduced power outputs at cold muscle temperatures in humans. However, t...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1024634
更新日期:1992-10-01 00:00:00
abstract::This study examined the effect of exercise-induced dehydration by ~4% body mass loss on 5-km cycling time trial (TT) performance and neuromuscular drive, independent of hyperthermia. 7 active males were dehydrated on 2 occasions, separated by 7 d. Participants remained dehydrated (DEH, -3.8±0.5%) or were rehydrated (R...
journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0033-1364022
更新日期:2014-08-01 00:00:00
abstract::Blood pressure (BP) assessment during resistance exercise can be useful to avoid high BP, reducing cardiovascular risk, especially in hypertensive individuals. However, non-invasive accurate technique for this purpose is not available. The aim of this study was to compare finger photoplethysmographic (FPP) and intra-a...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0030-1252054
更新日期:2010-08-01 00:00:00
abstract::Two well-trained speed-skaters were subjected to a biomechanical analysis incorporating push-off forces, cinematographic data, and link segment modeling. To gain knowledge on the backgrounds on technique and performance in speed-skating, the muscle coordination was studied by EMG and muscle contraction velocities. In ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025688
更新日期:1987-12-01 00:00:00
abstract::The current study aimed to determine the effects of sildenafil-associated aerobic exercise training (ET) on the physical performance, hemodynamic, autonomic and inflammatory parameters of rats. Male Wistar rats were randomly assigned to: sedentary rats placebo-treated (SP); sedentary rats sildenafil-treated (SS); trai...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0633-9132
更新日期:2018-10-01 00:00:00
abstract::The aim of the present study was to compare the physiological responses when the crank rate was chosen spontaneously (Ts) or set at +/- 10% (T-10%, T+10%) of the freely chosen rate, during two upper body exercises: i) a sub-maximal test (T(SUB)) in which intensities ranged from 50 to 80% (118.4 +/- 10.2 to 189.5 +/- 1...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-971124
更新日期:1999-05-01 00:00:00
abstract::Mechanical efficiency of positive work (eta+) and elastic behavior of human skeletal muscles were investigated on a special sledge apparatus which allowed the use of the normal stretch-shortening cycle exercises. Twenty-five young men were investigated in a total of 92 exercise situations, in which the intensity of th...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2008-1025751
更新日期:1986-06-01 00:00:00
abstract::Duplicate haemoglobin mass (Hbmass) measurements are recommended before and after altitude training sojourns to identify individual adaptations in athletes with a high level of certainty. Duplicate measurements reduce typical error (TE) and disclose measurement outliers, but are usually made on separate days, which is...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0034-1398583
更新日期:2015-05-01 00:00:00
abstract::The main purpose of the present study was to compare the reference metabolic equivalent (MET) value and observed resting oxygen uptake (VO2) for defining cardiorespiratory fitness (VO2max) and characterizing the energy cost of treadmill running. A heterogeneous cohort of 114 healthy men volunteered to participate. In ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0043-115739
更新日期:2017-11-01 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::This study aimed at investigating to what extent sauna-induced dehydration is effective to rapidly decrease body weight and whether this practice alters strength and/or explosive power (jump capacity) in healthy athletes. We also investigated whether the observed changes could be rapidly reversed through rehydration. ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2003-42017
更新日期:2003-10-01 00:00:00
abstract::This study compared the bowel function, fecal hemoglobin (Hb) loss, iron status and diets of 36 women of varying activity levels. In addition, we examined the effect of a marathon race on bowel function and fecal Hb loss in 15 of these women. The subjects were divided into 4 groups based on estimated daily exercise en...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024663
更新日期:1991-04-01 00:00:00
abstract::The purpose of this study was to determine the reproducibility of time at or above 90 % (t (90 % )VO (2max)) and 95 % (t (95 % )VO (2max)) maximal oxygen uptake during an intermittent treadmill run to exhaustion. Twenty-two distance runners (age 38.0 +/- 7.1 yrs) performed two identical incremental and two identical i...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2006-923856
更新日期:2007-01-01 00:00:00
abstract::The effect of recovery mode (Active [AR] vs. Passive [PR]) on plasma catecholamine (Adrenaline [A] and Noradrenaline [NA]) responses to maximal exercise (Exemax) was studied during interval training (IT). 24 male subjects (21.1±1.1 years) were randomly assigned to a control group (CG, n=6), AR training group (ARG, n=9...
journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0032-1327697
更新日期:2013-08-01 00:00:00
abstract::Studies have shown that the 577R allele of α-actinin-3 (ACTN3) is more prevalent in sprint athletes than in the general population or in endurance athletes. We examined the distribution of ACTN3 R577X (rs 1815739) genotypes and alleles in the Taiwanese general population (603) and in elite sprint swimmers who had part...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0030-1263115
更新日期:2011-06-01 00:00:00
abstract::The purpose of this study was to compare Anaerobic Work Capacity (AWC) measured on an isoinertial or an isokinetic bicycle ergometer. Twelve male participants completed two randomly ordered exercise testing sessions including a torque-velocity test followed by a 30-s all-out test on an isokinetic ergometer, or a force...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0029-1233466
更新日期:2010-02-01 00:00:00
abstract::The aim of this research was to study the effect of hand paddles on the pitch, the sweepback angles and other stroke kinematic characteristics of the hand during front crawl swimming. Ten female competitive swimmers swam without and with small (116 cm (2)) and large (268 cm (2)) paddles. Four cameras (60 Hz) were used...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-965570
更新日期:2008-05-01 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::Sprint cycling performance is heavily dependent on mechanical peak power output (PPO) and the underlying power- and torque-cadence relationships. Other key indices of these relationships include maximum torque (TMAX), cadence (CMAX) and optimal cadence (COPT). Two common methods are used in the laboratory to ascertain...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-0989-2387
更新日期:2019-12-01 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::This study was designed to assess the effects of Ramadan-intermittent-fasting (RIF) and time-of-day on muscle power and fatigue during the Wingate test. In a randomized design, 10 football players completed a Wingate test at 07:00 and 17:00 h on 3 different occasions: one week before Ramadan (BR), the second week of R...
journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0031-1286251
更新日期:2012-02-01 00:00:00
abstract::The aim of this study was to evaluate the effect of swimming exercise, without overloading, on the biomechanical parameters of the calcaneal tendon of rats. 27 male Wistar rats (70 days) were distributed randomly into 2 groups, Control Group (CG; n=15) with restricted movements inside the cage and Swimming Group (SG; ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-0033-1345130
更新日期:2013-12-01 00:00:00
abstract::This study evaluated the effect of ischemic preconditioning (IPC) on resistance exercise performance in upper limbs. After 12-RM load determination, 21 men attended 4 trials separated by 3 days in a randomized crossover design: IPC (4×5-min occlusion 220 mmHg/reperfusion 0 mmHg) in arms and in thighs, and SHAM (equal ...
journal_title:International journal of sports medicine
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0042-109066
更新日期:2016-09-01 00:00:00
abstract::One hundred fourteen subjects (34 +/- 8 years) without any competition background took part in an endurance training study to be completed after 1.5 years with running a marathon. Ultimately, 60 males and 18 females achieved that goal. The training program, carefully supervised, was divided into three phases with a ma...
journal_title:International journal of sports medicine
pub_type: 临床试验,杂志文章
doi:10.1055/s-2007-1024960
更新日期:1989-10-01 00:00:00
abstract::Intense exercise promotes long-term gains in cognitive functions. On the other hand, intense exercise may result in acute effects not clearly determined for cognitive performance. A condition of stochastic intensity ranging from moderate to maximal efforts is part of sports like cycling, in which cognitive integrity i...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/a-1114-6170
更新日期:2020-06-29 00:00:00
abstract::Because metabolic heat production is proportional to the amount of work performed, the differences in core body temperature (Tcore) of humans exercising at similar absolute exercise intensities are due to differences in their efficiency of heat dissipation. The purpose of this paper is to delineate the effects of trai...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-2007-971969
更新日期:1998-06-01 00:00:00
abstract::Phagocytic cells constitute the organism's first line of defence against external aggression. These cells carry out their non-specific defence function through what is known as the phagocytic process. This can be split up into several stages: adherence, chemotaxis, attachment, ingestion and killing of the foreign agen...
journal_title:International journal of sports medicine
pub_type: 杂志文章,评审
doi:10.1055/s-2007-1021133
更新日期:1994-10-01 00:00:00
abstract::Understanding the etiology of factors influencing bone mineral density (BMD) in Hispanic women for the prevention of osteoporosis was the aim of this investigation. Whole body BMD (WBBMD) of 39 Hispanic, premenopausal women aged 22 - 51 years was measured using dual-energy X-ray absorptiometry (DXA). Maximal aerobic c...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2004-815839
更新日期:2004-07-01 00:00:00
abstract::The purpose of this investigation was to determine the oxygen consumption, heart rate and plasma lactate responses at the fatigue threshold (FT) and estimate the length of time the FT could be maintained. Ten adult males (mean age +/- SD = 21.1 +/- 1.3 yrs) volunteered to perform a maximal treadmill test and FT test. ...
journal_title:International journal of sports medicine
pub_type: 杂志文章
doi:10.1055/s-2007-1024686
更新日期:1991-06-01 00:00:00
abstract::Our purpose was to determine if an acute bout of heading soccer balls adversely affected postural control and self-reported symptoms of cerebral concussion. Thirty-one college-aged soccer players were randomly placed into either a kicking group or a heading group. Subjects either kicked or headed 18 soccer balls over ...
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-2004-819941
更新日期:2004-07-01 00:00:00