A comparison of four treadmill protocols for determination of maximum oxygen uptake in 10- to 12-year-old boys.

abstract：:Ten young male adults (mean age 46.9 +/- 1.2 yrs) with 9.2 +/- 1.4 years of weight training experience and the ability to parallel squat at least 1.5 times their body mass were selected as subjects. The exercise session consisted of sets of 10 repetitions at 65% 1-RM of the parallel leg squat, with a cadence of one re...

journal_title：International journal of sports medicine

authors： Nieman DC,Henson DA,Sampson CS,Herring JL,Suttles J,Conley M,Stone MH,Butterworth DE,Davis JM

更新日期：1995-07-01 00:00:00

abstract：:The purpose of this study was to assess the reliability of a pre-loaded 1 500-m treadmill time trial, conducted in moderate normobaric hypoxia. 8 trained runners/triathletes (24±3 years, 73.2±8.1 kg, 182.5±6.5 cm, altitude specific V˙O2max: 52.9±5.5 ml·kg(-1)·min(-1)) completed 3 trials (the first as a familiarisation...

journal_title：International journal of sports medicine

authors： Shannon O,Barlow M,Duckworth L,Woods DR,Barker T,Grindrod A,Griffiths A,O'Hara JP

更新日期：2016-09-01 00:00:00

abstract：:The influence of exercise training on plasma amino acid concentrations at rest and after exercise was examined in a highly trained group of humans and compared with the response of a control group of nontrained healthy humans. After a bout of intense exercise at the same relative work load, the trained group exhibited...

journal_title：International journal of sports medicine

authors： Einspahr KJ,Tharp G

更新日期：1989-08-01 00:00:00

abstract：:Based on the importance of exercise and crucial role of liver in metabolism, the aim of this study was to determine whether the expression of peroxisome proliferator-activated receptor (PPAR)-α, γ and adiponectin receptor 2 in OLETF rat liver were altered in conjunction with improved metabolism with exercise training....

journal_title：International journal of sports medicine

authors： Zhang S,Liu Y,Li Q,Dong X,Hu H,Hu R,Ye H,Wu Y,Hu R,Li Y

更新日期：2011-08-01 00:00:00

abstract：:The purpose of this study was to determine whether preferred pedal rate (PPR) could be used as an index of cycling performance. Thirteen competitive cyclists cycled at PPR during a graded test and a supra-threshold constant power test (CPT). The results showed that PPR values reported in CPT were correlated to both pe...

journal_title：International journal of sports medicine

authors： Nesi X,Bosquet L,Pelayo P

更新日期：2005-06-01 00:00:00

abstract：:The aim of the present study was to understand if sport improves attention symptoms, social competency, and cognitive functions in children with attention deficit and hyperactivity disorder (ADHD). The present study was designed as a 6-week, prospective trial, including 12 sessions of education/sports therapy. 13 ADHD...

journal_title：International journal of sports medicine

authors： Kang KD,Choi JW,Kang SG,Han DH

更新日期：2011-12-01 00:00:00

abstract：:The present study aimed to evaluate the applicability of using a single slice cross-sectional area (CSA) of the skeletal muscle for estimating segmental skeletal muscle volume (SMV). By using MRI, the SMV of each of the upper arm, lower arm, upper leg, lower leg, and trunk was determined in 29 males. First, step-wise ...

journal_title：International journal of sports medicine

authors： Tanaka NI,Kanehisa H

更新日期：2014-06-01 00:00:00

abstract：:The magnitude and pattern of the hematocrit (Hct), hemoglobin (Hb), and plasma volume (PV) responses during and upon recovery from two resistance training protocols based on either a ten-repetition maximum (10 RM) or five-repetition maximum (5 RM) resistance was examined. Twelve college-aged male resistance exercise t...

journal_title：International journal of sports medicine

authors： Craig SK,Byrnes WC,Fleck SJ

更新日期：2008-02-01 00:00:00

abstract：:This study was undertaken to assess whether ventilatory anaerobic threshold (T vent) reflected endurance capacity (EC) in sports medical control. Fifteen subjects performed two cycle ergometer tests. The first was a maximal exercise test, which consisted of increasing the load 20 W/min until exhaustion. During this te...

journal_title：International journal of sports medicine

authors： Vago P,Mercier J,Ramonatxo M,Prefaut C

更新日期：1987-06-01 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

authors： Leoni LAB,Fukushima AR,Rocha LY,Feriani DJ,Júnior HJC,Gambassi BB,Mostarda CT,Maifrino LBM,Rodrigues B

更新日期：2018-10-01 00:00:00

abstract：:This study was undertaken to determine which of the two commonly used field tests, the 20-meter shuttle run test (20-MST) or the University of Montreal track test (UM-TT), provides the most accurate assessment of maximal and functional aerobic capacity in moderately trained athletes. Eleven male subjects aged from 18 ...

journal_title：International journal of sports medicine

authors： Ahmaidi S,Collomp K,Caillaud C,Préfaut C

更新日期：1992-04-01 00:00:00

abstract：:Food restriction has a great impact on skeletal muscle mass by inducing muscle protein breakdown to provide substrates for energy production through gluconeogenesis. Genetic models of hyper-muscularity interfere with the normal balance between protein synthesis and breakdown which eventually results in extreme muscle ...

journal_title：International journal of sports medicine

authors： Matsakas A,Romanello V,Sartori R,Masiero E,Macharia R,Otto A,Elashry M,Sandri M,Patel K

更新日期：2013-03-01 00:00:00

abstract：:The aim of the present study was to compare the iron status of 19 top-level soccer players and 20 male control subjects. All players showed no impairment of physical performance and had a dietary iron intake adequate to cover the iron losses. Serum iron, TIBC, % transferrin saturation and serum ferritin were not signi...

journal_title：International journal of sports medicine

authors： Resina A,Gatteschi L,Giamberardino MA,Imreh F,Rubenni MG,Vecchiet L

更新日期：1991-10-01 00:00:00

abstract：:Since the first official world championships in breath-hold diving (1996), a sport has developed where the athletes compete in various disciplines of breath-hold diving. One of the rules is that the diver should surface from a dive without showing any signs of hypoxia. Depending on the severity of hypoxia, a diver may...

journal_title：International journal of sports medicine

authors： Lindholm P

更新日期：2007-04-01 00:00:00

abstract：:Cardiac damage has recently been implicated in the aetiology of "exercise induced cardiac dysfunction". The humoral markers of cardiac damage that have been utilised to date are not sufficiently cardio-specific to investigate this hypothesis. The aim of the present study was to examine cardiac function following prolo...

journal_title：International journal of sports medicine

authors： Shave RE,Dawson E,Whyte G,George K,Ball D,Gaze DC,Collinson PO

更新日期：2002-10-01 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：: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

authors： Dugas JR,Barrett AM,Beason DP,Plymale MF,Fleisig GS

更新日期：2015-06-01 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 main goal of the preventive intervention study in one community of the German CINDI (Countrywide Integrated Non-Communicable Diseases Intervention programme of the WHO) area was to improve cardiovascular health by reducing the risk factors smoking, hypertension, obesity, hypercholesterolaemia, and by changing sede...

journal_title：International journal of sports medicine

authors： Wiesemann A,Metz J,Nuessel E,Scheidt R,Scheuermann W

更新日期：1997-05-01 00:00:00

abstract：:The broad spectrum of skills in sport, with their high demands on strength, speed, endurance, coordination, and flexibility, represents one of the greatest challenges to human motor performances. However, the basic neurophysiological mechanisms in sport are not principally different from those in everyday motor acts. ...

journal_title：International journal of sports medicine

authors： Henatsch HD,Langer HH

更新日期：1985-02-01 00:00:00

abstract：:Physical exercise activates blood coagulation and enhances fibrinolytic activity. To investigate whether these activations of blood coagulation and fibrinolysis are balanced post-exercise and during the period of recovery, 11 moderately active young men were examined immediately after a standardised cycle ergometer te...

journal_title：International journal of sports medicine

authors： Lin X,El-Sayed MS,Waterhouse J,Reilly T

更新日期：1999-04-01 00:00:00

abstract：:Wasted left ventricular effort (∆Ew) refers to work required of the left ventricle to eject blood that does not result in increased stroke volume and is related to left ventricular hypertrophy. Literature shows that men and women have differing ventricular and vascular responses to and following exercise. Our purpose ...

journal_title：International journal of sports medicine

authors： Lane AD,Ranadive SM,Yan H,Kappus RM,Cook MD,Sun P,Woods JA,Wilund K,Fernhall B

更新日期：2013-09-01 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

authors： Kunzler MR,Carpes FP

更新日期：2020-06-29 00:00:00

abstract：:The aim of this study was to determine long term changes in shoulder and elbow joints of former elite javelin throwers. Twenty-one elite javelin throwers were examined at an average of 19 years after the end of their high performance phase. Mean age at examination was 50 years. Functional assessment of both shoulders ...

journal_title：International journal of sports medicine

authors： Schmitt H,Hansmann HJ,Brocai DR,Loew M

更新日期：2001-05-01 00:00:00

abstract：:Male Sprague-Dawley rats (n = 48, > 200 g) were progressively treadmill trained over 5 wk where they were running 60 min/d, 5 d/wk. One-half of the group consumed a high-fat diet (HF, 78.7% of energy), while one-half consumed a high-carbohydrate diet (HC, 68.7% of energy). On the day of the experiment, 6 rats per diet...

journal_title：International journal of sports medicine

authors： Nakamura M,Brown J,Miller WC

更新日期：1998-08-01 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 present trial focused on the exact role of colour and power Doppler sonography in Achilles tendinopathy and correlated these techniques with the clinical severity of the disease and with findings on grey-scale sonography. Twenty patients with in total 28 symptomatic Achilles tendons were included in this prospecti...

journal_title：International journal of sports medicine

authors： Reiter M,Ulreich N,Dirisamer A,Tscholakoff D,Bucek RA

更新日期：2004-05-01 00:00:00

abstract：:As golf grows in popularity, golf related injuries have increased. The purpose of this study was to calculate and compare upper body kinematics of healthy male golfers from different skill levels. Kinematic data were obtained from 18 professional, 18 low handicap, 18 mid handicap and 18 high handicap golfers with an o...

journal_title：International journal of sports medicine

authors： Zheng N,Barrentine SW,Fleisig GS,Andrews JR

更新日期：2008-06-01 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

authors： Fulford J,Liepa A,Barker AR,Meakin J

更新日期：2014-12-01 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

authors： Ballarin E,Borsetto C,Cellini M,Patracchini M,Vitiello P,Ziglio PG,Conconi F

更新日期：1989-10-01 00:00:00