Applicability of single muscle CSA for predicting segmental muscle volume in young men.

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 tread...

journal_title：International journal of sports medicine

authors： Imagawa TF,Hirano I,Utsuki K,Horie M,Naka A,Matsumoto K,Imagawa S

更新日期：2009-07-01 00:00:00

abstract：:The present study examined the behaviour of the Achilles tendon (AT) - triceps surae (TS) muscle complex during running and long jump take-off. High AT forces were measured in the push-off phase in running even with very low EMG activity. In the long jump, high rate of stiffness development was a characteristic of the...

journal_title：International journal of sports medicine

authors： Kyröläinen H,Finni T,Avela J,Komi PV

更新日期：2003-04-01 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

authors： Schütz UH,Billich C,Schoss D,Beer M,Ellermann J

更新日期：2018-01-01 00:00:00

abstract：:This study examined the relationship between ratings of perceived exertion (RPE, CR-10), heart rate (HR), peak blood lactate (La peak), and immersion (IM) parameters in 17 elite synchronized swimmers performing 30 solo and duet routines during competition. All were video recorded (50 Hz) and an observational instrumen...

journal_title：International journal of sports medicine

authors： Rodríguez-Zamora L,Iglesias X,Barrero A,Chaverri D,Irurtia A,Erola P,Rodríguez FA

更新日期：2014-05-01 00:00:00

abstract：:Prior research about the effects of the amount of exercised muscle mass upon cardiovascular responses (CVR) has neglected a potential bias related to total exercise and concentric/eccentric duration. Autonomic responses and perceived exertion (RPE) were compared in resistance exercises performed with larger and smalle...

journal_title：International journal of sports medicine

authors： Matos-Santos L,Farinatti P,P Borges J,Massaferri R,Monteiro W

更新日期：2017-11-01 00:00:00

abstract：:Single outcomes of standard isokinetic dynamometry tests do not discern between various muscle mechanical capacities. In this study, we aimed to (1) evaluate the shape and strength of the force-velocity relationship of knee extensors, as observed in isokinetic tests conducted at a wide range of angular velocities, and...

journal_title：International journal of sports medicine

authors： Grbic V,Djuric S,Knezevic OM,Mirkov DM,Nedeljkovic A,Jaric S

更新日期：2017-09-01 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

authors： Gauffin H,Tropp H,Odenrick P

更新日期：1988-04-01 00:00:00

abstract：:The purpose of the present study was to test the hypothesis that large increases in blood lactate concentration ([La] (b)) and/or body temperature may occur during an endurance training on a rowing ergometer and disrupt training. The influence of an increase in air convection on the capacity to perform a prolonged exe...

journal_title：International journal of sports medicine

authors： Maciejewski H,Messonnier L,Moyen B,Bourdin M

更新日期：2007-11-01 00:00:00

abstract：:The purpose of this study was to investigate the effects of recombinant human erythropoietin (rHuEPO) administration on energy metabolism during exercise. Specifically, the contribution of anaerobic (glycogen) metabolism during exercise was evaluated. Sprague-Dawley rats were randomly assigned to an experimental [rHuE...

journal_title：International journal of sports medicine

authors： Lavoie C,Diguet A,Milot M,Gareau R

更新日期：1998-05-01 00:00:00

abstract：:The effect of strenuous joint loading on the metabolism of articular cartilage in man is not known. The development of a non-invasive immunoassay for the assessment of the catabolism of cartilage aggrecan has enabled us to quantify keratan sulfate (KS), a component of aggrecan, in the serum of fifteen male marathon ru...

journal_title：International journal of sports medicine

authors： Sweet MB,Jakim I,Coelho A,Becker PJ,Thonar EJ

更新日期：1992-05-01 00:00:00

abstract：:The present study examined the neuromuscular activation characteristics of the hamstrings during the 'Nordic' hamstrings exercise (NHE) and changes in the eccentric strength of the knee flexors with NHE training. Initially, the normalised root mean square electromyographic (EMG) activity of the hamstrings of both limb...

journal_title：International journal of sports medicine

authors： Iga J,Fruer CS,Deighan M,Croix MD,James DV

更新日期：2012-12-01 00:00:00

abstract：:The aim of this study was to compare the maximal lactate steady state (MLSS) and ventilatory threshold (VT) under different environments (TEMP: 22°C; and HOT: 40°C; 50% RH). 8 male subjects (age 23.9±2.4 years, body mass 75.9±7.3 kg and VO2(max) 47.8±4.9 mL·kg(-1)·min(-1)) performed a series of tests to determine the ...

journal_title：International journal of sports medicine

authors： de Barros CL,Mendes TT,Mortimer LÁ,Simões HG,Prado LS,Wisloff U,Silami-Garcia E

更新日期：2011-10-01 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：: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：:This study examined the influence of 28 days of dietary carbohydrate (CHO) supplementation on plasma cytokine responses to cycle ergometry. Sixteen highly trained male cyclists and triathletes (age: 30.6+/-5.6 y; VO2max: 64.8+/-4.7 mL x kg(-1) x min(-1); mean+/-SD) participated in the study. One group (n=8) consumed a...

journal_title：International journal of sports medicine

authors： Cox AJ,Pyne DB,Cox GR,Callister R,Gleeson M

更新日期：2010-03-01 00:00:00

abstract：:Neuromuscular activity of the lower leg is dependent on the task performed, speed of movement and gender. Whether training volume influences neuromuscular activity is not known. The EMG of physically active persons differing in running mileage was analysed to investigate this. 55 volunteers were allocated to a low (LM...

journal_title：International journal of sports medicine

authors： Baur H,Hirschmüller A,Müller S,Cassel M,Mayer F

更新日期：2012-01-01 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：:This study investigated the effects of marine phytoplankton supplementation on 1) perceived recovery and ground reaction forces in humans following a non-functional overreaching resistance-training program and 2) myogenic molecular markers associated with muscle cell recovery in a rat model. In the human trial, a 5-we...

journal_title：International journal of sports medicine

authors： Sharp MH,Sahin K,Stefan MW,Gheith RH,Reber DD,Ottinger CR,Orhan C,Tuzcu M,Sahin N,Lowery RP,Durkee S,Wilson JM

更新日期：2020-12-22 00:00:00

abstract：:It has been shown that bouts of high-intensity exercise may reduce subcutaneous adipose tissue more than low-intensity exercise. The aim of the present study was to examine if a discontinuous training protocol is more successful in reducing adipose tissue than a continuous endurance training protocol. Fourteen untrain...

journal_title：International journal of sports medicine

authors： Mäder U,Roth P,Furrer R,Brêchet JP,Boutellier U

更新日期：2001-07-01 00:00:00

abstract：:The early vascular adaptation to indoor cycling, a popular activity at many fitness centres, is incompletely evaluated. Forty two healthy women (21-45 years) underwent measurements of arterial wall properties and geometry as well as a maximal bicycle exercise test before and after a 3 months period during which 21 of ...

journal_title：International journal of sports medicine

authors： Bjarnegård N,Hedman K,Länne T

更新日期：2019-04-01 00:00:00

abstract：:In order to assess the changes in the cellular immune system, 27 healthy male subjects were selected who participate in leisure-time sports and in whom measurements of the lymphocyte subsets in venous blood were carried out before and after a standardized endurance exercise test (EI, 60 minutes in length, intensity: 6...

journal_title：International journal of sports medicine

authors： Ricken KH,Rieder T,Hauck G,Kindermann W

更新日期：1990-04-01 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

authors： Chiu LL,Wu YF,Tang MT,Yu HC,Hsieh LL,Hsieh SS

更新日期：2011-06-01 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：: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

authors： Housh TJ,Johnson GO,McDowell SL,Housh DJ,Pepper M

更新日期：1991-06-01 00:00:00

abstract：:We investigated the protective effect of Erythropoietin (EPO) analogue rHuEPO on renal injury induced by acute exhaustive exercise in the rat. Rats were randomly allocated to one of 3 groups: normal control (C), exhaustive exercise test (ET) and EPO pre-treatment (rHuEPO 2 000 U/kg) plus ET (EPO+ET). Compared with con...

journal_title：International journal of sports medicine

authors： Lin X,Qu S,Hu M,Jiang C

更新日期：2010-12-01 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

authors： Petibois C,Cazorla G,Déléris G

更新日期：2003-01-01 00:00:00

abstract：:As people age, they experience a decline in immune responses. Unusually heavy acute or chronic exercise could increase the risk of upper respiratory tract infection (URTI) whereas regular moderate physical activity may reduce URTI symptomatology. The purpose of the present study was to determine whether an aerobic exe...

journal_title：International journal of sports medicine

authors： Martins RA,Cunha MR,Neves AP,Martins M,Teixeira-Veríssimo M,Teixeira AM

更新日期：2009-12-01 00:00:00

abstract：:This study investigated whether 4 weeks of daily supplementation with 500 or 1000 mg of Vitamin C and 500 or 1000 IU of Vitamin E could modify biochemical and ultrastructural indices of muscle damage following a 21 km run. Fifteen experienced male distance runners were divided into two groups (vitamin or placebo) and ...

journal_title：International journal of sports medicine

authors： Dawson B,Henry GJ,Goodman C,Gillam I,Beilby JR,Ching S,Fabian V,Dasig D,Morling P,Kakulus BA

更新日期：2002-01-01 00:00:00

abstract：:Considerable interindividual variation in the response of blood pressure to exercise has been found. In this study the response of systolic blood pressure during a progressive maximal bicycle ergometer test was investigated in 747 physically active male subjects over age of 40 years with normal, borderline elevated, a...

journal_title：International journal of sports medicine

authors： Wijnen JA,van Baak MA,Tan ES,Bovens AM,Vrencken JG,Verstappen FT

更新日期：1988-12-01 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

authors： Reidy PT,Hinkley JM,Trappe TA,Trappe SW,Harber MP

更新日期：2014-06-01 00:00:00