Intracyclic velocity variations and arm coordination during exhaustive exercise in front crawl stroke.

abstract：:In the present prospective longitudinal study 17 male endurance trained athletes (cyclists and triathletes; age 23.4+/-6.7 years, VO2max 61.2+/-7.5 ml x min(-1) x kg(-1); means+/-SD) were investigated both during a state of overtraining syndrome (OT: N=15), mainly induced by an increase of exercise intensity, as well ...

journal_title：International journal of sports medicine

authors： Urhausen A,Gabriel HH,Weiler B,Kindermann W

更新日期：1998-02-01 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：:The purpose was to analyze the influence of oral contraceptive use on body composition and strength levels in trained women. Twenty-three resistance-trained women participated in this study (age=27.4±3.4 years; fat mass=28.0±5.0%; BMI=22.9±2.7 kg∙m-2). Subjects performed an 8-week non-linear resistance-training progra...

journal_title：International journal of sports medicine

authors： Romance R,Vargas S,Espinar S,Petro JL,Bonilla DA,Schöenfeld BJ,Kreider RB,Benítez-Porres J

更新日期：2019-12-01 00:00:00

abstract：:The purpose of this randomized cross-over study was to investigate the effects of a 4-min long, 2-mm vertically-vibrating vibration-exercise on muscle performance and body balance in healthy subjects. Sixteen volunteers (eight men and women aged 18-35 years) underwent both the 4-min vibration- and sham-interventions i...

journal_title：International journal of sports medicine

authors： Torvinen S,Sievänen H,Järvinen TA,Pasanen M,Kontulainen S,Kannus P

更新日期：2002-07-01 00:00:00

abstract：:One hundred fourteen subjects (34 +/- 8 years) without any competition background took part in an endurance training study to be completed after 1.5 years with running a marathon. Ultimately, 60 males and 18 females achieved that goal. The training program, carefully supervised, was divided into three phases with a ma...

journal_title：International journal of sports medicine

authors： Verstappen FT,Janssen GM,Does RJ

更新日期：1989-10-01 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：:The aim of this research was to study the effect of hand paddles on the pitch, the sweepback angles and other stroke kinematic characteristics of the hand during front crawl swimming. Ten female competitive swimmers swam without and with small (116 cm (2)) and large (268 cm (2)) paddles. Four cameras (60 Hz) were used...

journal_title：International journal of sports medicine

authors： Gourgoulis V,Aggeloussis N,Vezos N,Antoniou P,Mavromatis G

更新日期：2008-05-01 00:00:00

abstract：:Physical exercise is associated with increases of serum and salivary levels of cortisol. The concomitant increase in serum lactate has been implicated as one of the mechanisms responsible for adrenocortical activation. We evaluated the responses of serum lactate and serum and salivary cortisol to an acute bout of high...

journal_title：International journal of sports medicine

authors： Paccotti P,Minetto M,Terzolo M,Ventura M,Ganzit GP,Borrione P,Termine A,Angeli A

更新日期：2005-11-01 00:00:00

abstract：:Over 30 years ago hemodynamic studies on patients with high altitude pulmonary edema (HAPE) excluded the prior contention that the basic cause was left ventricular failure and correctly implicated the pulmonary circulation as the culprit. Physiological studies during the acute stage have revealed a normal pulmonary ar...

journal_title：International journal of sports medicine

authors： Hultgren HN

更新日期：1997-01-01 00:00:00

abstract：:Perceived exertion has been investigated during incremental exercise to exhaustion with athletes, according to the 6-20 scale proposed by Borg (RPE, 1970) and a new scale based on the estimation of exhaustion time (t(lim)) (Estimated Time Limit or ETL, from 1 to 20; ETL= 21 - 2 n, with n = log2t(lim)). ETL increased l...

journal_title：International journal of sports medicine

authors： Garcin M,Vandewalle H,Monod H

更新日期：1999-01-01 00:00:00

abstract：:Understanding the etiology of factors influencing bone mineral density (BMD) in Hispanic women for the prevention of osteoporosis was the aim of this investigation. Whole body BMD (WBBMD) of 39 Hispanic, premenopausal women aged 22 - 51 years was measured using dual-energy X-ray absorptiometry (DXA). Maximal aerobic c...

journal_title：International journal of sports medicine

authors： Afghani A,Abbott AV,Wiswell RA,Jaque SV,Gleckner C,Schroeder ET,Johnson CA

更新日期：2004-07-01 00:00:00

abstract：:The objectives of this study were to 1) continuously assess oxygen uptake during and after difficult sport rock climbing and 2) to evaluate the effects of active versus passive recovery on post-climbing blood lactate and hand grip strength. Fifteen expert rock climbers attempted to climb (i.e., red point lead) a 20 m ...

journal_title：International journal of sports medicine

authors： Watts PB,Daggett M,Gallagher P,Wilkins B

更新日期：2000-04-01 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：:This study was designed to assess the effects of Ramadan-intermittent-fasting (RIF) and time-of-day on muscle power and fatigue during the Wingate test. In a randomized design, 10 football players completed a Wingate test at 07:00 and 17:00 h on 3 different occasions: one week before Ramadan (BR), the second week of R...

journal_title：International journal of sports medicine

authors： Chtourou H,Hammouda O,Chaouachi A,Chamari K,Souissi N

更新日期：2012-02-01 00:00:00

abstract：:We hypothesized that a bout of high or low volume eccentric exercise would protect against muscle damage following a subsequent high volume bout and that adaptation would be attributable to neural changes, independent of the initial exercise volume. Sixteen males performed either 45 (ECC45) or 10 (ECC10) maximal eccen...

journal_title：International journal of sports medicine

authors： Howatson G,Van Someren K,Hortobágyi T

更新日期：2007-07-01 00:00:00

abstract：:The aim of this study was to establish the presence of postural deficits in subjects with chronic ankle instability (CAI) and to assess the effect of an 8-week balance training program on dynamic postural control. A total of 43 subjects with CAI and 31 controls participated in this case-control study. Participants wit...

journal_title：International journal of sports medicine

authors： De Ridder R,Willems TM,Vanrenterghem J,Roosen P

更新日期：2015-06-01 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：:The aim of the present study was to analyze the effects of age on cardiorespiratory fitness (CRF), muscle strength and heart rate (HR) response to exercise adaptation in women in response to a long-term twice-weekly combined aerobic and resistance exercise program. 85 sedentary women, divided into young (YG; n=22, 30....

journal_title：International journal of sports medicine

authors： Ciolac EG,Roberts CK,da Silva JM,Guimarães GV

更新日期：2014-05-01 00:00:00

abstract：:The peripheral adaptation process associated with repeating eccentric training over a longer period of time was studied in m. vastus lateralis of eleven healthy males aged 24 +/- 4 years. The maximal dynamic concentric muscle strength was only slightly improved after 8 weeks of training. However, eccentric work capaci...

journal_title：International journal of sports medicine

authors： Fridén J,Seger J,Sjöström M,Ekblom B

更新日期：1983-08-01 00:00:00

abstract：:Sedentary overweight or obese adult (age<60 years) women, allocated in type 2 diabetes mellitus (T2DM, n=13), dyslipidemia alone (DYS, n=12), dyslipidemia associated with hyperglycaemia (DYSHG, N=12), or healthy control (CON, n=10) groups, had their lipid, glucose, blood pressure, endurance performance, and anthropome...

journal_title：International journal of sports medicine

authors： Alvarez C,Ramirez-Campillo R,Martinez-Salazar C,Castillo A,Gallardo F,Ciolac EG

更新日期：2018-05-01 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：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：:Phagocytic cells constitute the organism's first line of defence against external aggression. These cells carry out their non-specific defence function through what is known as the phagocytic process. This can be split up into several stages: adherence, chemotaxis, attachment, ingestion and killing of the foreign agen...

journal_title：International journal of sports medicine

authors： Ortega Rincón E

更新日期：1994-10-01 00:00:00

abstract：:The use of aero style handlebars has gained popularity in triathlons and individual time trial events recently. The effect of using these handlebars has only been examined during short term exercise. It was the aim of this investigation to compare time to exhaustion and selected measures of ventilation, gas exchange a...

journal_title：International journal of sports medicine

authors： Berry MJ,Pollock WE,van Nieuwenhuizen K,Brubaker PH

更新日期：1994-01-01 00:00:00

abstract：:The hypothalamic-pituitary-testicular (H-P-T) axis was evaluated in groups of endurance-trained (TRG) and untrained (UNT) males. Each group was subjected to: 1) a 4-h resting hormonal profile [testosterone (T), free-testosterone (FT), estradiol (E2), luteinizing hormone (LH), prolactin (PRL), and cortisol (C)], 2) a d...

journal_title：International journal of sports medicine

authors： Hackney AC,Sinning WE,Bruot BC

更新日期：1990-08-01 00:00:00

abstract：:The relationship between running intensity and the accumulation of hypoxanthine and uric acid in plasma was studied in four well-trained runners. The runners each performed several 800-m runs at different velocities, each run being performed on separate days. Venous blood samples were collected before and at regular i...

journal_title：International journal of sports medicine

authors： Sjödin B,Hellsten Westing Y

更新日期：1990-12-01 00:00:00

abstract：:In a group of male distance runners, 23 out of 45 athletes showed decreased serum ferritin values (< 35 micrograms). The high prevalence of a typical iron deficiency in runners was confirmed in a subgroup of eight athletes in which the iron metabolism was studied in detail using radio-iron labelling and liver iron qua...

journal_title：International journal of sports medicine

authors： Nachtigall D,Nielsen P,Fischer R,Engelhardt R,Gabbe EE

更新日期：1996-10-01 00:00:00

abstract：:The purpose of this investigation was to determine the effect of ambient temperature on the salivary immunoglobulin A (s-IgA) response to submaximal exercise. Nine adult males (x age +/- SD = 22 +/- 2 yrs) volunteered to perform an incremental treadmill test to exhaustion for the determination of VO2max and three 30-m...

journal_title：International journal of sports medicine

authors： Housh TJ,Johnson GO,Housh DJ,Evans SL,Tharp GD

更新日期：1991-10-01 00:00:00

abstract：:The university stage is a critical developmental period for young adults, where lifestyles can determine future health. A cross-sectional study including 481 college students was conducted, with the following objectives: 1) to examine the prevalence of risk of developing eating disorders in college students, 2) to ass...

journal_title：International journal of sports medicine

authors： Parreño-Madrigal IM,Díez-Fernández A,Martínez-Vizcaíno V,Visier-Alfonso ME,Garrido-Miguel M,Sánchez-López M

更新日期：2020-09-01 00:00:00

abstract：:The aim of this study was to evaluate the effect of swimming exercise, without overloading, on the biomechanical parameters of the calcaneal tendon of rats. 27 male Wistar rats (70 days) were distributed randomly into 2 groups, Control Group (CG; n=15) with restricted movements inside the cage and Swimming Group (SG; ...

journal_title：International journal of sports medicine

authors： Bezerra MA,Santos de Lira KD,Coutinho MP,de Mesquita GN,Novaes KA,da Silva RT,de Brito Nascimento AK,Inácio Teixeira MF,Moraes SR

更新日期：2013-12-01 00:00:00