abstract：:The aim of this study was to explore the effect of characteristics of various games and players on the proportion of retired tennis matches in the Open Era of tennis. The data included over 420,000 matches played among 17,553 tennis players in the period from 1968 to the end of 2010. The influence of the surface type ...

journal_title：Journal of sports science & medicine

authors： Breznik K,Batagelj V

更新日期：2012-06-01 00:00:00

abstract：:An os acromiale (OA) arises from a fusion failure of the anterior acromial apophysis. This case report presents the successful management of a painful OA associated to rotator cuff impingement in a competitive swimmer, based on ultrasonographic diagnosis and conservative management. Rest from sport activity, oral anti...

journal_title：Journal of sports science & medicine

authors： Frizziero A,Benedetti MG,Creta D,Moio A,Galletti S,Maffulli N

更新日期：2012-06-01 00:00:00

abstract：:There have been few studies examining the short-term effect of high-impact activities on bone metabolism measured by bone serum marker concentrations. The purpose of this study was to examine the effect of short-term high-impact jump activity on bone turnover in female college-aged non-athletes. Twenty six healthy fem...

journal_title：Journal of sports science & medicine

authors： Kishimoto K,Lynch RP,Reiger J,Yingling VR

更新日期：2012-03-01 00:00:00

abstract：:This study aimed to cross-validate the psychometric properties of the Basic Psychological Needs in Exercise Scale (BPNES) by Vlachopoulos and Michailidou, 2006 in a Spanish context. Two studies were conducted. Confirmatory factor analysis results confirmed the hypothesized three-factor solution In addition, we documen...

journal_title：Journal of sports science & medicine

authors： Moreno-Murcia JA,Martínez-Galindo C,Moreno-Pérez V,Marcos PJ,Borges F

更新日期：2012-03-01 00:00:00

abstract：:The presents study investigated the effects of between-set interventions on neuromuscular function of the knee extensors during six sets of 10 isokinetic (120°·s(-1)) maximal concentric contractions separated by three minutes. Twelve healthy men (age: 23.9 ± 2.4 yrs) were tested for four different between-set recovery...

journal_title：Journal of sports science & medicine

authors： Cometti C,Deley G,Babault N

更新日期：2011-12-01 00:00:00

abstract：:The aim of this study was to analyze the responses of women to the repeated bout effect (RBE) and to a short eccentric training program. Twenty-four young females were randomly assigned to a training group (TG, n = 14) or a control group (CG, n = 10). They performed two identical acute eccentric bouts (120 repetitions...

journal_title：Journal of sports science & medicine

authors： Fernandez-Gonzalo R,Bresciani G,de Souza-Teixeira F,Hernandez-Murua JA,Jimenez-Jimenez R,Gonzalez-Gallego J,de Paz JA

更新日期：2011-12-01 00:00:00

abstract：:For the determination of ground reaction forces in alpine skiing, pressure insole (PI) systems and portable force plate (FP) systems are well known and widely used in previous studies. The purposes of this study were 1) to provide reference data for the vertical component of the ground reaction forces (vGRF) during al...

journal_title：Journal of sports science & medicine

authors： Nakazato K,Scheiber P,Müller E

更新日期：2011-12-01 00:00:00

abstract：:This study sought to determine the validity of a new system for assessing the displacement and average velocity within machine-based resistance training exercise using the Chronojump System. The new design is based on a contact bar and a simple, low-cost mechanism that detects the conductivity of electrical potentials...

journal_title：Journal of sports science & medicine

authors： Buscà B,Font A

更新日期：2011-09-01 00:00:00

abstract：:The aim of this study was to compare heart rate (HR), blood lactate (LA) and rate of perceived exertion (RPE) responses to a tennis-specific interval training (i.e., on-court) session with that of a matched-on-time running interval training (i.e., off-court). Eight well-trained, male (n = 4) and female (n = 4) tennis ...

journal_title：Journal of sports science & medicine

authors： Fernandez-Fernandez J,Sanz-Rivas D,Sanchez-Muñoz C,de la Aleja Tellez JG,Buchheit M,Mendez-Villanueva A

更新日期：2011-09-01 00:00:00

abstract：:The effect of a pre-workout energy supplement on acute multi- joint resistance exercise was examined in eight resistance-trained college-age men. Subjects were randomly provided either a placebo (P) or a supplement (S: containing caffeine, taurine, glucuronolactone, creatine, β-alanine, and the amino acids; leucine, i...

journal_title：Journal of sports science & medicine

authors： Gonzalez AM,Walsh AL,Ratamess NA,Kang J,Hoffman JR

更新日期：2011-06-01 00:00:00

abstract：:We examined the effect of walk training combined with blood flow restriction (BFR) on the size of blood flow-restricted distal muscles, as well as, on the size of non-restricted muscles in the proximal limb and trunk. Nine men performed walk training with BFR and 8 men performed walk training alone. Training was condu...

journal_title：Journal of sports science & medicine

authors： Sakamaki M,G Bemben M,Abe T

更新日期：2011-06-01 00:00:00

abstract：:This study aimed to compare the effect of different static stretching durations followed by dynamic stretching on repeated sprint ability (RSA) and change of direction (COD). Twenty-five participants performed the RSA and COD tests in a randomized order. After a 5 min aerobic warm up, participants performed one of the...

journal_title：Journal of sports science & medicine

authors： Wong del P,Chaouachi A,Lau PW,Behm DG

更新日期：2011-06-01 00:00:00

abstract：:Golf has become an increasingly popular sport and a growing body of research trying to identify its main physical requirements is being published. The aim of this review was twofold: first, to examine the existing scientific literature regarding strength training and golf in healthy, non-injured, subjects; and second,...

journal_title：Journal of sports science & medicine

authors： Torres-Ronda L,Sánchez-Medina L,González-Badillo JJ

更新日期：2011-03-01 00:00:00

abstract：:Regular exercise has the capability of decreasing the incidence and progress of certain cancers. Murine sarcoma, (S-180) cells were transplanted to control (TC), exercise trained (10 week, 1 hour day, 5 times/ week) mice, which had the swimming training terminated at the time of transplantation (ETT), and also to a gr...

journal_title：Journal of sports science & medicine

authors： Sasvari M,Taylor AW,Gaal D,Radak Z

更新日期：2011-03-01 00:00:00

abstract：:The aim of the present study was to assess the precision of oxygen uptake with heart rate regression during track running in highly-trained runners. Twelve national and international level male long-distance road runners (age 30.7 ± 5.5 yrs, height 1.71 ± 0.04 m and mass 61.2 ± 5.8 kg) with a personal best on the half...

journal_title：Journal of sports science & medicine

authors： Reis VM,den Tillaar RV,Marques MC

更新日期：2011-03-01 00:00:00

abstract：:The aim of the present study was to examine the development of on-the-ball skills in soccer-specific laboratory test and to examine how traditional measures of body composition, hormone profile, physical fitness, general perceptual motor skills and soccer skills were related to performance measured in open skill envir...

journal_title：Journal of sports science & medicine

authors： Vänttinen T,Blomqvist M,Häkkinen K

更新日期：2010-12-01 00:00:00

abstract：:Physical inactivity is a leading factor associated with cardiovascular disease and a major contributor to the global burden of disease in developed countries. Subjective mood states associated with acute exercise are likely to influence future exercise adherence and warrant further investigation. The present study exa...

journal_title：Journal of sports science & medicine

authors： Hallgren MÅ,Moss ND,Gastin P

更新日期：2010-12-01 00:00:00

abstract：:The aims of the present study were to compare the consistency in the lower limb acceleration patterns during inside and instep kicks performed by players with different skill levels, and to investigate the correlation between subjective rating scores for skill level relative to their kicking performance and knee accel...

journal_title：Journal of sports science & medicine

authors： Arpinar-Avsar P,Soylu AR

更新日期：2010-09-01 00:00:00

abstract：:Concurrent improvements in aerobic capacity and muscle hypertrophy in response to a single mode of training have not been reported. We examined the effects of low-intensity cycle exercise training with and without blood flow restriction (BFR) on muscle size and maximum oxygen uptake (VO2max). A group of 19 young men (...

journal_title：Journal of sports science & medicine

authors： Abe T,Fujita S,Nakajima T,Sakamaki M,Ozaki H,Ogasawara R,Sugaya M,Kudo M,Kurano M,Yasuda T,Sato Y,Ohshima H,Mukai C,Ishii N

更新日期：2010-09-01 00:00:00

abstract：:The primary purpose of the present study was to identify motivational profiles of adolescent athletes using cluster analysis in non-Western culture. A second purpose was to examine relationships between physical self-perception differences of adolescent athletes and motivational profiles. One hundred and thirty six ma...

journal_title：Journal of sports science & medicine

authors： Cağlar E,Aşçı FH

更新日期：2010-06-01 00:00:00

abstract：THE AIM OF THE CURRENT STUDY WAS TWOFOLD:(i) to examine the effects of eight weeks of combined dry land strength and aerobic swimming training for increasing upper and lower body strength, power and swimming performance in young competitive swimmers and, (ii) to assess the effects of a detraining period (strength train...

journal_title：Journal of sports science & medicine

authors： Garrido N,Marinho DA,Reis VM,van den Tillaar R,Costa AM,Silva AJ,Marques MC

更新日期：2010-06-01 00:00:00

abstract：:The purpose of this study was to test a motivational model of the coach-athlete relationship, based on self-determination theory and on the hierarchical model of intrinsic and extrinsic motivation. The sample comprised of 608 athletes (ages of 12-17 years) completed the following measures: interest in athlete's input,...

journal_title：Journal of sports science & medicine

authors： Almagro BJ,Sáenz-López P,Moreno JA

更新日期：2010-03-01 00:00:00

abstract：:In this paper a four-ball-best-ball (4BBB) model for pairs of golf players is set up. The 4BBB match-play scoring system is seen to satisfy a basic requirement of fairness. It is shown that it is not strictly possible to rate individual players as 4BBB players. However, a (reasonably broad) class of individual players...

journal_title：Journal of sports science & medicine

authors： Pollard G,Pollard G

更新日期：2010-03-01 00:00:00

abstract：:The aim of this study was to examine the effect of changes in speed and incline slope on plantar pressure distribution of the foot during treadmill jogging. Plantar pressure parameters were measured with the Pedar-X system in twenty healthy girls (mean age of 20.7 years, mean height of 1.60m, and a mean weight of 53.3...

journal_title：Journal of sports science & medicine

authors： Ho IJ,Hou YY,Yang CH,Wu WL,Chen SK,Guo LY

更新日期：2010-03-01 00:00:00

abstract：:This was a placebo-controlled, double-blind study designed to evaluate the effect of a commercially available dietary supplement on upper-respiratory tract symptoms (URTI) and mood state. Seventy-five marathon runners (35 men, 40 women) ranging in age from 18-53 years, mean age: 36 ± 9, self-administered placebo, 250 ...

journal_title：Journal of sports science & medicine

authors： Talbott S,Talbott J

更新日期：2009-12-01 00:00:00

abstract：:The purpose of this investigation was to use a combination of image processing, force measurements and finite element modeling to calculate deformation of the knee cartilage during jumping. Professional athletes performed jumps analyzed using a force plate and high-speed video camera system. Image processing was perfo...

journal_title：Journal of sports science & medicine

authors： Filipovic N,Vulovic R,Peulic A,Radakovic R,Kosanic D,Ristic B

更新日期：2009-12-01 00:00:00

abstract：:This study evaluated the effects of high-dose of short-term creatine supplementation (5g.kg(-1).day(-1) to 1 week) and long-term creatine supplementation (1g.kg(-1). day(-1) to 4-8 weeks) on kidney and liver structure and function of sedentary and exercised Wistar rats (Exercise sessions consisted of swimming at 80% o...

journal_title：Journal of sports science & medicine

authors： Souza RA,Miranda H,Xavier M,Lazo-Osorio RA,Gouvea HA,Cogo JC,Vieira RP,Ribeiro W

更新日期：2009-12-01 00:00:00

abstract：:The primary purpose of this research was to compare the impact characteristics of Taekwondo (TKD) and Yongmudo (YMD) player's turning kick according to the target height. 5 highly skilled YMD and 5 TKD players participated in this study. To measure the impact force, two accelerometers were fixed to a PVC pipe in a san...

journal_title：Journal of sports science & medicine

authors： O'Sullivan D,Chung C,Lee K,Kim E,Kang S,Kim T,Shin I

更新日期：2009-11-01 00:00:00

abstract：:The purpose of this study was to examine, first, the movement actions performed during two different small-sided games and, second, their effects on a series of field endurance and technical tests. Thirty-four young soccer players (age: 13 ± 0.9 yrs; body mass: 62.3 ± 15.1 kg; height: 1.65 ± 0.06 m) participated in th...

journal_title：Journal of sports science & medicine

authors： Katis A,Kellis E

更新日期：2009-09-01 00:00:00

abstract：:Extrapolation from post-exercise measurements has been used to estimate respiratory and blood gas parameters during exercise. This may not be accurate in exercise with reduced breathing frequency (RBF), since spontaneous breathing usually follows exercise. This study was performed to ascertain whether measurement of o...

journal_title：Journal of sports science & medicine

authors： Kapus J,Ušaj A,Kapus V,Strumbelj B

更新日期：2009-09-01 00:00:00

abstract：:When conducting research in the area of bone health, accurate measurement of calcium intake is crucial. The rapid assessment method (RAM) is one technique that has frequently been used for its measurement of calcium intake. However, the RAM and other currently established questionnaires lack the assessment of dietary ...

journal_title：Journal of sports science & medicine

authors： Henry MB,Almstedt HC

更新日期：2009-06-01 00:00:00

abstract：:This study investigated the factorial validity of the 33-item self-rated Emotional Intelligence Scale (EIS: Schutte et al., 1998) for use with athletes. In stage 1, content validity of the EIS was assessed by a panel of experts (n = 9). Items were evaluated in terms of whether they assessed EI related to oneself and E...

journal_title：Journal of sports science & medicine

authors： Lane AM,Meyer BB,Devonport TJ,Davies KA,Thelwell R,Gill GS,Diehl CD,Wilson M,Weston N

更新日期：2009-06-01 00:00:00

abstract：:The purpose of this study was to investigate a large number of determinants of sport dropout among French adolescents, in order to reveal proximal and distal factors of dropout. 261 current and 106 dropout athletes (M = 14.6) participated to the study. The data were collected by a questionnaire assessing demographic i...

journal_title：Journal of sports science & medicine

authors： Boiché JC,Sarrazin PG

更新日期：2009-03-01 00:00:00

abstract：:Our aim was to test the normality of physical activity patterns and energy expenditures in normal weight and overweight primary school students. Heart rate estimates of total daily energy expenditure (TEE), active energy expenditure (AEE), and activity patterns were made over 3 consecutive school days in healthy middl...

journal_title：Journal of sports science & medicine

authors： Zarrouk F,Bouhlel E,Feki Y,Amri M,Shephard RJ

更新日期：2009-03-01 00:00:00

abstract：:A percentage of either measured or predicted maximum heart rate is commonly used to prescribe and measure exercise intensity. However, maximum heart rate in athletes may be greater during competition or training than during laboratory exercise testing. Thus, the aim of the present investigation was to determine if end...

journal_title：Journal of sports science & medicine

authors： Semin K,Stahlnecker Iv AC,Heelan K,Brown GA,Shaw BS,Shaw I

更新日期：2008-12-01 00:00:00

abstract：:The objective of this study was to investigate the effect of expected and unexpected interpolated stimuli (IT) during a maximum voluntary contraction on quadriceps force output and activation. Two groups of male subjects who were either inexperienced (MI: no prior experience with IT tests) or experienced (ME: previous...

journal_title：Journal of sports science & medicine

authors： Button DC,Behm DG

更新日期：2008-12-01 00:00:00

abstract：:This study aimed to describe and compare the ventilation behavior during an incremental test utilizing three mathematical models and to compare the feature of ventilation curve fitted by the best mathematical model between aerobically trained (TR) and untrained (UT) men. Thirty five subjects underwent a treadmill test...

journal_title：Journal of sports science & medicine

authors： Pires FO,Lima-Silva AE,Oliveira EN,Rumenig-Souza E,Kiss MA

更新日期：2008-09-01 00:00:00

abstract：:The aim was to determine the rotational torque occurring at the shoe-natural grass interface during golf swing performance with different clubs, and to determine the influence of handicap and golf shoe design. Twenty-four golfers (8 low 0-7; 8 medium 8-14; and 8 high 15+) performed 5 shots with a driver, 3-iron and 7-...

journal_title：Journal of sports science & medicine

authors： Worsfold P,Smith NA,Dyson RJ

更新日期：2008-09-01 00:00:00

abstract：:The purpose of this study was to analyze the relationship between the intra-cycle variation of the horizontal velocity of displacement of the center of mass (dV), the hand's and feet's velocity, as well as, to identify the variables that most predict the dV's, in butterfly stroke. The study was divided in two parts. T...

journal_title：Journal of sports science & medicine

authors： Barbosa TM,Fernandes RJ,Morouco P,Vilas-Boas JP

更新日期：2008-06-01 00:00:00

abstract：:The purpose of this study was to determine modulation of pre- activity related to different types and heights of deep jump. Sixteen male soccer players without experience in deep jumps training (the national competition; 15.0 ± 0.5yrs; weight 61.9 ± 6.1kg; height 1.77 ± 0.07m), who participated in the study, performed...

journal_title：Journal of sports science & medicine

authors： Mrdakovic V,Ilic DB,Jankovic N,Rajkovic Z,Stefanovic D

更新日期：2008-06-01 00:00:00