Metabolic implications during a 20-km run after heart transplantation.

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

authors： Yeung SS,Yeung EW

更新日期：2008-03-01 00:00:00

abstract：BACKGROUND:The purpose of this study was to examine some motor performance aspects of the unloaded lower extremity after Achilles tendon rupture repair. The measured motor performance aspects were simple reaction time, choice reaction time, speed of movement, foot tapping speed, and coordination. METHODS:Ninety patien...

journal_title：International journal of sports medicine

authors： Kauranen KJ,Leppilahti JI

更新日期：2001-02-01 00:00:00

abstract：:This study compared 6 weeks of incline treadmill interval training (INC) performed on a 10% treadmill grade using either sprint-like efforts or slower, longer bouts. 24 individuals were randomly assigned between 2 groups that each completed 2 INC and one 30-min level-grade sessions∙wk-1. Training intensities, bout dur...

journal_title：International journal of sports medicine

authors： Ferley DD,Hopper DT,Vukovich MD

更新日期：2016-11-01 00:00:00

abstract：UNLABELLED:To define the respective roles of the periphery and central oxygen transport in the exercise limitation of heart transplanted patients (HTR), we compared 11 HTR (15.1 +/- 10.8 months after transplantation) to six age and weight matched normal controls (C), during an incremental exercise test (30 W/3 min step...

journal_title：International journal of sports medicine

authors： Mettauer B,Lampert E,Petitjean P,Bogui P,Epailly E,Schnedecker B,Geny B,Eisenmann B,Haberey P,Lonsdorfer J

更新日期：1996-05-01 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

authors： Macková E,Melichna J,Havlícková L,Placheta Z,Blahová D,Semiginovský B

更新日期：1986-10-01 00:00:00

abstract：:Eighteen male marathon runners (mean marathon performance: 2 h 36 min, SD = 7.0 min; VO2 max = 64.1 +/- 15.1 ml/kg . min-1) were submitted to a needle biopsy in the suprailiac region and to various measurements of body fatness: percent body fat (% fat), seven skinfold thicknesses, and mean fat cell diameter. Basal and...

journal_title：International journal of sports medicine

authors： Savard R,Després JP,Deshaies Y,Marcotte M,Bouchard C

更新日期：1985-10-01 00:00:00

abstract：:Bike shock absorption systems reduce the energy variation induced by terrain irregularities, leading to a greater comfort. However, they may also induce an increase in energy expenditure for the rider. More specifically, cross-country racers claim that rear shock absorption systems generate significant energy loss. Th...

journal_title：International journal of sports medicine

authors： Nielens H,Lejeune TM

更新日期：2001-08-01 00:00:00

abstract：:Limited data exist concerning exercise training-induced alterations in skeletal muscle oxidative and antioxidant enzyme activity in senescent animals. Therefore, the purpose of this study was twofold: 1) to examine the exercise training-induced changes in oxidative and antioxidant enzyme activity in skeletal muscle of...

journal_title：International journal of sports medicine

authors： Hammeren J,Powers S,Lawler J,Criswell D,Martin D,Lowenthal D,Pollock M

更新日期：1992-07-01 00:00:00

abstract：UNLABELLED:The present study investigated the specific atmospheric conditions expected in Athens during the summer of 2004 in relation to the performance of elite athletes. DESIGN:Atmospheric pollution and weather data for the period April 16th to September 30th covering the entire greater Athens area and collected fr...

journal_title：International journal of sports medicine

authors： Flouris AD

更新日期：2006-02-01 00:00:00

abstract：:In the last decade the study of the human muscle mechanics and energetics in physiology and pathology underwent a radical change. Indeed, the use of biopsy is being progressively accompanied by non-invasive techniques which allow a more integrative assessment of muscle function in vivo. Magnetic resonance imaging (MRI...

journal_title：International journal of sports medicine

authors： Cerretelli P,Binzoni T

更新日期：1997-10-01 00:00:00

abstract：:The determination of anaerobic capacity (AC) using treadmill ergometry is problematic from a methodological, as well as a technical standpoint. In this study, a procedure from Monod and Scherrer was modified to examine whether realistic magnitudes of AC could be determined using three subject groups with different lev...

journal_title：International journal of sports medicine

authors： Striegel H,Emde F,Ploog N,Roecker K,Horstmann T,Dickhuth HH

更新日期：2005-09-01 00:00:00

abstract：:This study sought to determine if prophylactic ankle taping and bracing influenced vertical leg stiffness during hopping. Twenty healthy and physically active participants completed testing under three ankle stabilizer conditions, ankle tape, semi-rigid ankle brace or control (no stabilizer) during three separate sess...

journal_title：International journal of sports medicine

authors： Williams S,Riemann BL

更新日期：2009-05-01 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：:High-speed running and sprinting training play an important role in the development of physical capabilities, sport-specific performance and injury prevention among soccer players. This commentary aims to summarize the current evidence regarding high-speed running and sprinting training in professional soccer and to i...

journal_title：International journal of sports medicine

authors： Beato M,Drust B,Iacono AD

更新日期：2020-12-08 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

authors： Goosey-Tolfrey VL,West M,Lenton JP,Tolfrey K

更新日期：2011-02-01 00:00:00

abstract：:Although analysis of lactate concentrations with a Yellow Springs Instruments (YSI) automated analyzer has become very popular in Sports Medicine, the accuracy and reliability of this technique has not been carefully studied. Additionally, the influence of a common lysing agent Triton X-100 (TX) on blood lactate measu...

journal_title：International journal of sports medicine

authors： Bishop PA,Smith JF,Kime JC,Mayo JM,Tin YH

更新日期：1992-01-01 00:00:00

abstract：:This study was a retrospective examination of the relationship between estimated dietary sodium intake and training-induced changes in plasma volume (PV). It was undertaken to explore one possible explanation for the large individual differences in PV shifts accompanying 3 d of endurance cycling. Ten healthy males rod...

journal_title：International journal of sports medicine

authors： Luetkemeier MJ

更新日期：1995-10-01 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

authors： Jimenez-Ormeño E,Aguado X,Delgado-Abellan L,Mecerreyes L,Alegre LM

更新日期：2011-08-01 00:00:00

abstract：:The purpose of this study was to determine the effect of a reduced ventilatory frequency (Vf) on blood gases and acid-base changes during three intensities of cycling exercise. VO2max and lactate threshold workload (LaT) of six subjects were assessed on a Monark ergometer. Experimental rides were performed 1) with no ...

journal_title：International journal of sports medicine

authors： Sharp RL,Williams DJ,Bevan L

更新日期：1991-02-01 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

authors： Amiard V,Jullien H,Nassif D,Maingourd Y,Ahmaidi S

更新日期：2007-04-01 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

authors： Intziegianni K,Cassel M,Rauf S,White S,Rector M,Kaplick H,Wahmkow G,Kratzenstein S,Mayer F

更新日期：2016-11-01 00:00:00

abstract：:The primary purpose of this investigation was to compare 31 competitive female swimmers with 31 competitive male swimmers on their perceptual responses to submaximal swimming. A secondary purpose was to evaluate the relationship between heart rate (HR) and perceived exertion (RPE) in swimming. Each swimmer completed a...

journal_title：International journal of sports medicine

authors： Koltyn KF,O'Connor PJ,Morgan WP

更新日期：1991-08-01 00:00:00

abstract：:This study investigated the relationship between sports participation/physical activity during youth (13 - 18 years of age) and adulthood (30 - 40 years of age), and cardiovascular risk factors (body fat and fat distribution, blood pressure, lipoprotein levels and cardiorespiratory fitness) at 40 years of age. Subject...

journal_title：International journal of sports medicine

authors： Lefevre J,Philippaerts R,Delvaux K,Thomis M,Claessens AL,Lysens R,Renson R,Vanden Eynde B,Vanreusel B,Beunen G

更新日期：2002-05-01 00:00:00

abstract：:The diving response elicited by breath-holding (BH) and immersion mainly consists of bradycardia, decreased cardiac output, and peripheral vasoconstriction. These responses reduce oxygen consumption and thereby prolong the duration of the dive. They may also lead to cardiac arrhythmias or hypoxia, however, which in tu...

journal_title：International journal of sports medicine

authors： Lemaître F,Bernier F,Petit I,Renard N,Gardette B,Joulia F

更新日期：2005-07-01 00:00:00

abstract：:To investigate the effect of exercise on adiponectin in young healthy human males, we examined serum total adiponectin and high-molecular-weight (HMW) adiponectin in newly recruited male soldiers who participated in an 8-week basic military training (BMT). A total of 95 males (mean age, 18.79±1.50 years) were sampled ...

journal_title：International journal of sports medicine

authors： Han X,Feng Y,Han X,Guo H,Zhu J,Ning C,Liu F,Li S,Li X,Yang YN

更新日期：2019-01-01 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

authors： Reybrouck T,Ghesquiere J,Weymans M,Amery A

更新日期：1986-02-01 00:00:00

abstract：:It has been suggested that lactate concentrations may provide a guide to an optimal training intensity. However, lactate concentrations established during incremental exercise in the laboratory are not always indicative of what is occurring during constant-load exercise at the same intensity. Ideally, lactate concentr...

journal_title：International journal of sports medicine

authors： Bishop D

更新日期：2001-10-01 00:00:00

abstract：:Previous studies have demonstrated conflicting results on the effects of acute exercise on FMD. The aim of the study was to examine brachial artery FMD before and after 3 bouts of acute exercise performed at different intensities. 10 healthy males (mean±SD age: 22±1 years) completed 30 min of cycling at 50, 70 and 85%...

journal_title：International journal of sports medicine

authors： Birk GK,Dawson EA,Batterham AM,Atkinson G,Cable T,Thijssen DH,Green DJ

更新日期：2013-05-01 00:00:00

abstract：:The purpose of this study was to examine the combined effects of drop-height and surface condition on drop jump (DJ) performance and knee joint kinematics. DJ performance, sagittal and frontal plane knee joint kinematics were measured in jump experienced young male and female adults during DJs on stable, unstable and ...

journal_title：International journal of sports medicine

authors： Lesinski M,Prieske O,Beurskens R,Behm D,Granacher U

更新日期：2018-01-01 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

authors： de Boer RW,Cabri J,Vaes W,Clarijs JP,Hollander AP,de Groot G,van Ingen Schenau GJ

更新日期：1987-12-01 00:00:00