Relationships between perceived exertion and physiological variables during swimming.

abstract：:The purpose of this study was to assess the intensity and energy cost of dance simulation in relation to the American College of Sports Medicine (ACSM) recommendations on the quantity and quality of exercise for developing and maintaining cardiorespiratory fitness, and to assess its safety. Forty subjects (21 males an...

journal_title：International journal of sports medicine

authors： Tan B,Aziz AR,Chua K,Teh KC

更新日期：2002-02-01 00:00:00

abstract：:The indirect identification of doping in sports can be performed by assessing athletes' hematological perturbations from the analysis of blood collected on different occasions. Because prosecution for doping based on this information requires expensive and time-consuming interpretation of blood analysis results by var...

journal_title：International journal of sports medicine

authors： Nunes AJ,Paixão P,Proença J,Silva RNBD

更新日期：2020-01-01 00:00:00

abstract：:We have reviewed carbohydrate metabolism in skeletal muscle with an emphasis on recent information. In this review a significant number of points have been made. These are summarized below. 1. CP and glycogen are concomitantly metabolized during short-term (less than or equal to 10 s) intense exercise. 2. Both epineph...

journal_title：International journal of sports medicine

authors： Bonen A,McDermott JC,Hutber CA

更新日期：1989-12-01 00:00:00

abstract：:The purpose of this investigation was to determine the accuracy of the critical velocity (CV) test for predicting time to exhaustion (time limit = TL) during treadmill running. Ten adult males (mean +/- SD of age = 23 +/- 2 years) volunteered to perform a maximal treadmill test, a CV test, and five exhaustive treadmil...

journal_title：International journal of sports medicine

authors： Pepper ML,Housh TJ,Johnson GO

更新日期：1992-02-01 00:00:00

abstract：:The purpose of this study was to investigate the effects of short-term, high-intensity sprint training on the root mean squared (RMS) and median frequency (MF) derived from surface electromyography (EMG), as well as peak power, mean power, total work, and plasma lactate levels in trained cyclists when performed concur...

journal_title：International journal of sports medicine

authors： Creer AR,Ricard MD,Conlee RK,Hoyt GL,Parcell AC

更新日期：2004-02-01 00:00:00

abstract：:Participation in aerobic dance is associated with a number of lower extremity injuries, and abnormal joint loading seems to be a factor in these. However, information on joint loading is limited. The purpose of this study was to investigate the kinetics of the lower extremity in step aerobic dance and to compare the d...

journal_title：International journal of sports medicine

authors： Wu HW,Hsieh HM,Chang YW,Wang LH

更新日期：2012-11-01 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：:Altitude exposure leads to considerable weight loss. The different hypotheses that have been put forward to explain this phenomenon are discussed reviewing the literature: 1) a primary decrease of food intake due to loss of appetite caused, directly or indirectly, by hypoxia, changes of menus, comfort and habits, 2) a...

journal_title：International journal of sports medicine

authors： Kayser B

更新日期：1992-10-01 00:00:00

abstract：:To identify the risk factors of injuries in handball, 221 players were followed during one indoor season. The injury incidence was 4.6/1000 playing hours and 11.4/1000 game hours. The upper extremity was involved in 41% of the injuries including 21% finger sprains. Ankle sprains were the most common injury (33%), and ...

journal_title：International journal of sports medicine

authors： Nielsen AB,Yde J

更新日期：1988-10-01 00:00:00

abstract：UNLABELLED:Caffeine has many diverse physiological effects including central nervous system stimulation. Ventilatory threshold and a recently described heart rate variability threshold both have a relationship with autonomic control that could be altered by caffeine consumption. The purpose of this investigation was to...

journal_title：International journal of sports medicine

authors： Karapetian GK,Engels HJ,Gretebeck KA,Gretebeck RJ

更新日期：2012-07-01 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：:We examined the effects of acute exercise on reaction time to visual stimuli presented in the central portion and periphery of the visual field. Twelve participants performed reaction time tasks at rest and during cycling at 65 % peak oxygen uptake in two visual conditions. We used circular black-and-white checkerboar...

journal_title：International journal of sports medicine

authors： Ando S,Kokubu M,Kimura T,Moritani T,Araki M

更新日期：2008-12-01 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 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：:This study examined whether professional footballers with previous biceps femoris long head (BFLH) injury in the last 3-years present a smaller proximal aponeurosis (Apo-BFLH) size compared to footballers with no previous injury. We examined the Apo-BFLH and BFLH size using magnetic resonance imaging and tested the kn...

journal_title：International journal of sports medicine

authors： Freitas SR,Abrantes F,Santos F,Mascarenhas V,Oliveira R,Firmino T,Mendes B,Cerda M,Vaz JR

更新日期：2020-07-01 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：: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 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：:The major objective in this study was a comparison of the motor performance of young male smokers and non-smokers. We tested the endurance capacity, maximal isometric strength, speed of whole-body movements, flexibility and balancing ability of 74 smokers and 118 non-smokers. Then we measured the balancing ability, th...

journal_title：International journal of sports medicine

authors： Burtscher M,Likar R,Pechlaner C,Kunz F,Philadelphy M

更新日期：1994-05-01 00:00:00

abstract：:One hundred and three women who were habitual distance runners and 74 age-matched physically inactive women provided three-day diet records. Intergroup differences in intakes of energy nutrients, micronutrients, cholesterol and fiber were evaluated via analysis of variance and, to assess qualitative differences, via a...

journal_title：International journal of sports medicine

authors： Pate RR,Sargent RG,Baldwin C,Burgess ML

更新日期：1990-12-01 00:00:00

abstract：:Creatine supplementation has become a common practice among competition athletes participating in different sports over the last few years. The mechanism by which supplementary creatine could have potential ergogenic effects would be an increased muscle creatine and phosphocreatine concentration, leading to a higher r...

journal_title：International journal of sports medicine

authors： Mujika I,Padilla S

更新日期：1997-10-01 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：:Circulatory leukocytes vary significantly in response to acute bouts of exercise. However, little is known concerning the adaptability of this response to chronic intense exercise training. We investigated the circulating leukocytic response to acute exercise in trained athletes during a 28-day intense exercise traini...

journal_title：International journal of sports medicine

authors： Ndon JA,Snyder AC,Foster C,Wehrenberg WB

更新日期：1992-02-01 00:00:00

abstract：:This study aimed to investigate the impact of a 16-week dance-based aerobic exercise program on lymphocyte function in healthy and type 2 diabetes mellitus (T2DM) women. We enrolled 23 women: 11 with T2DM and 12 non-diabetic controls. Initially, we performed anthropometry and body composition measurements, afterwards,...

journal_title：International journal of sports medicine

authors： Passos MEP,Borges L,Dos Santos-Oliveira LC,Alecrim-Zeza AL,Lobato TB,de Oliveira HH,Santos CMM,Diniz VLS,Iser-Bem PN,Manoel R,Murata GM,Hirabara SM,Curi R,Pithon-Curi TC,Hatanaka E,Gorjao R

更新日期：2020-12-15 00:00:00

abstract：:We investigated the effects of hypoxia on matched-severe intensity exercise and on the parameters of the power-duration relationship. Fifteen trained subjects performed in both normoxia and normobaric hypoxia (FiO2=0.13, ~3000 m) a maximal incremental test, a 3 min all-out test (3AOT) and a transition from rest to an ...

journal_title：International journal of sports medicine

authors： Sousa AC,Millet GP,Viana J,Milheiro J,Reis V

更新日期：2021-01-18 00:00:00

abstract：:This study investigated sex-specific effects of surface instability on kinetics and lower extremity kinematics during drop jumping and landing. Ground reaction forces as well as knee valgus and flexion angles were tested in 14 males (age: 23±2 years) and 14 females (age: 24±3 years) when jumping and landing on stable ...

journal_title：International journal of sports medicine

authors： Prieske O,Muehlbauer T,Krueger T,Kibele A,Behm D,Granacher U

更新日期：2015-01-01 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

authors： Aura O,Komi PV

更新日期：1986-06-01 00:00:00

abstract：:The purpose of this study was to assess the agreement in body composition measurements of wheelchair athletes using skinfolds, bio-impedance analysis (BIA) and air displacement plethysmography (ADP) relative to dual-energy X-ray absorptiometry (DXA). A secondary objective was to develop new skinfold prediction equatio...

journal_title：International journal of sports medicine

authors： Goosey-Tolfrey V,Keil M,Brooke-Wavell K,de Groot S

更新日期：2016-09-01 00:00:00

abstract：:This study has attempted to describe the fiber composition and respiratory potential in the leg (gastrocnemius) muscle of highly trained, elite female distance runners. As noted, many of these women were competing successfully in middle-distance (1500-3000 m) rather than long distance (10 km and marathon) events. This...

journal_title：International journal of sports medicine

authors： Costill DL,Fink WJ,Flynn M,Kirwan J

更新日期：1987-11-01 00:00:00

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