A comparison between aero and standard racing handlebars during prolonged exercise.

abstract：:The normal circadian rhythm in exercise performance may be altered by the habitual timing of training. We have investigated if morning time trial performance is affected by the time at which moderate exercise is performed on the previous day. Eight male cyclists undertook two separate exercise sessions of sub-maximal ...

journal_title：International journal of sports medicine

authors： Edwards BJ,Edwards W,Waterhouse J,Atkinson G,Reilly T

更新日期：2005-10-01 00:00:00

abstract：:The aim of the present study was to investigate why blood lactate after prolonged quadriceps contraction during hiking is only marginally increased. Eight sailors performed five 3-min hiking bouts interspersed with 5-s recovery periods. Whole body oxygen uptake, heart rate and lactate were recorded, along with continu...

journal_title：International journal of sports medicine

authors： Vogiatzis I,Tzineris D,Athanasopoulos D,Georgiadou O,Geladas N

更新日期：2008-01-01 00:00:00

abstract：:This study compared the bowel function, fecal hemoglobin (Hb) loss, iron status and diets of 36 women of varying activity levels. In addition, we examined the effect of a marathon race on bowel function and fecal Hb loss in 15 of these women. The subjects were divided into 4 groups based on estimated daily exercise en...

journal_title：International journal of sports medicine

authors： Lampe JW,Slavin JL,Apple FS

更新日期：1991-04-01 00:00:00

abstract：:We describe the metabolic changes in the blood that appeared during a maximal 400-m swimming test in 7 male swimmers by Fourier-transform infrared spectrometry (FT-IR spectrometry). A 400-m test (255.9 +/- 6.8 s) was performed during which stroke frequency and time to complete each pool distance were recorded. In thre...

journal_title：International journal of sports medicine

authors： Petibois C,Déléris G

更新日期：2003-07-01 00:00:00

abstract：:Exercise induced proteinuria is a common phenomenon in high performance sports. Based on the appearance of so called "effort urines" in routine doping analysis the purpose of this study was to investigate the influence of exercise induced proteinuria on IEF profiles and SDS-PAGE relative mobility values (rMVs) of endo...

journal_title：International journal of sports medicine

authors： Voss S,Lüdke A,Romberg S,Schänzer E,Flenker U,deMarees M,Achtzehn S,Mester J,Schänzer W

更新日期：2010-06-01 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

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：:The purpose of this study was to evaluate the effect of using different mathematical models to describe the relationship between treadmill running speed and time to exhaustion. All models generated a value for an aerobic parameter (critical speed; S (critical)). 35 university students performed 5-7 constant-speed 0%-s...

journal_title：International journal of sports medicine

authors： Hill DW,Vingren JL,Nakamura FY,Kokobun E

更新日期：2011-07-01 00:00:00

abstract：:The purpose of this study was to analyse the effects of an exhaustive exercise on arm coordination and intracyclic velocity variations (IVV) to better understand the ways in which they are modified under fatigue conditions. Seventeen competitive swimmers performed a 200-m all-out test and a set of two 25-m (before and...

journal_title：International journal of sports medicine

authors： Alberty M,Sidney M,Huot-Marchand F,Hespel JM,Pelayo P

更新日期：2005-07-01 00:00:00

abstract：:The aim of the present study was to compare the peak vertical ground reaction force (V-GRF(peak)) and impulse of women performing water aerobic exercises at different intensities in aquatic and dry land environments. 15 young women performed 1 session in each environment consisting of 3 water aerobic exercises (statio...

journal_title：International journal of sports medicine

authors： Alberton CL,Tartaruga MP,Pinto SS,Cadore EL,Antunes AH,Finatto P,Kruel LF

更新日期：2013-10-01 00:00:00

abstract：:The purpose of this study was to establish if provision of CHO altered the mucosal immune and salivary cortisol responses to intermittent exercise in the heat. In a double-blind design, 10 males undertook soccer-specific intermittent exercise on a motorized treadmill on 2 occasions, each over 90 min and separated by 1...

journal_title：International journal of sports medicine

authors： Sari-Sarraf V,Doran DA,Clarke ND,Atkinson G,Reilly T

更新日期：2011-09-01 00:00:00

abstract：:The aim of this study was to compare hormonal changes in plasma total testosterone (T), cortisol (C), luteinizing hormone (LH), follicle-stimulating hormone (FSH) and prolactin (P) in two world-class teams, both consisting of 9 top male pro-cyclists, during a real sports situation (the 1998 "Vuelta a España", a 3-week...

journal_title：International journal of sports medicine

authors： Fernández-Garcia B,Lucía A,Hoyos J,Chicharro JL,Rodriguez-Alonso M,Bandrés F,Terrados N

更新日期：2002-11-01 00:00:00

abstract：:Changes in body components occur over a season, but their impact on performance is still unclear. We aimed to analyze the relationship between changes in leg strength and jump performance with body composition over a season in highly trained athletes. Measures from the beginning to the main competitive periods of a se...

journal_title：International journal of sports medicine

authors： Silva AM,Matias CN,Santos DA,Rocha PM,Minderico CS,Sardinha LB

更新日期：2014-12-01 00:00:00

abstract：:Maximal voluntary contractions (MVC) were performed by five male subjects as repeated knee extensions separated by 13-s rest periods for the purposes of studying performance capability, physiologic responses, and recruitment patterns among fast-twitch (FT) and slow-twitch (ST) extrafusal muscle fibers for this type of...

journal_title：International journal of sports medicine

authors： Karlsson J,Piehl K,Knuttgen HG

更新日期：1981-05-01 00:00:00

abstract：:The aim of this study was to investigate whether rs41274853 in the 3'-untranslated region of the ciliary neurotrophic factor receptor gene (CNTFR) is associated with elite sprint/power athletic status and assess its functional significance. A total of 211 Japanese sprint/power track and field athletes (62 internationa...

journal_title：International journal of sports medicine

authors： Miyamoto-Mikami E,Fujita Y,Murakami H,Ito M,Miyachi M,Kawahara T,Fuku N

更新日期：2016-05-01 00:00:00

abstract：:Ten untrained subjects and nine trained cyclists were examined during graduated ergometric exercise in the supine position. The levels of epinephrine and norepinephrine in the blood as well as the heart rate and oxygen intake were determined. At submaximum levels, epinephrine, norepinephrine, lactate, and the heart ra...

journal_title：International journal of sports medicine

authors： Lehmann M,Keul J,Huber G,Da Prada M

更新日期：1981-08-01 00:00:00

abstract：:To determine the effects of aerobic fitness on pregnancy and the newborn, 20 primigravid subjects were studied throughout gestation and immediately postpartum. The subjects were classified as trained (T = 10) or untrained (UT = 10) based on the heart rate response to submaximal cycle ergometry testing done in each tri...

journal_title：International journal of sports medicine

authors： Wong SC,McKenzie DC

更新日期：1987-04-01 00:00:00

abstract：:Acute aerobic exercise produces post-exercise hypotension (PEH). Chinese populations have lower prevalence of cardiovascular disease compared to Caucasians. PEH may be associated cardiovascular disease through its influence on hypertension. The purpose of this study was to compare PEH between Caucasian and Chinese sub...

journal_title：International journal of sports medicine

authors： Sun P,Yan H,Ranadive SM,Lane AD,Kappus RM,Bunsawat K,Baynard T,Li S,Fernhall B

更新日期：2015-03-01 00:00:00

abstract：:The purpose of this study was to investigate the effects of recombinant human erythropoietin (rHuEPO) administration on energy metabolism during exercise. Specifically, the contribution of anaerobic (glycogen) metabolism during exercise was evaluated. Sprague-Dawley rats were randomly assigned to an experimental [rHuE...

journal_title：International journal of sports medicine

authors： Lavoie C,Diguet A,Milot M,Gareau R

更新日期：1998-05-01 00:00:00

abstract：:Climbing Mount Everest needs an acclimatization period of 3 to 4 weeks between 3000 and 6000 m. In order to reduce this period of time spent in dangerous conditions, an experience of pre-acclimatization was performed with 5 elite alpinists (4 male, 1 female), aged 30 +/- 4 yrs (mean +/- SD), before their attempt to cl...

journal_title：International journal of sports medicine

authors： Richalet JP,Bittel J,Herry JP,Savourey G,Le Trong JL,Auvert JF,Janin C

更新日期：1992-10-01 00:00:00

abstract：:Six successful members of the British Women's Lightweight Rowing Team were assessed before and after two-month (1990) and four-month (1991) periods of weight-reduction controlled by reduced caloric intake, while engaged in their normal physical training. Fat free mass (FFM) was calculated from body weight (BW) by util...

journal_title：International journal of sports medicine

authors： Koutedakis Y,Pacy PJ,Quevedo RM,Millward DJ,Hesp R,Boreham C,Sharp NC

更新日期：1994-11-01 00:00:00

abstract：:The present study was designed to examine the effects of administration of a GABAergic agonist (Baclofen) on run-time to exhaustion in trained and untrained rats, and on some indicators of fatigue. Run-time to exhaustion on a treadmill set at a speed of 25 m.min-1 was significantly increased in both untrained (p < 0.0...

journal_title：International journal of sports medicine

authors： Abdelmalki A,Merino D,Bonneau D,Bigard AX,Guezennec CY

更新日期：1997-02-01 00:00:00

abstract：:We investigated the possible influence of an exhaustive physical exercise on mental stress biomarkers (serotonin, tryptophan, and beta-endorphin) along with dopamine, noradrenaline and free fatty acids in an ultramarathon race in which 45 km was run on the first day and 90 km on the second. We obtained serum samples a...

journal_title：International journal of sports medicine

authors： Agawa H,Yamada N,Enomoto Y,Suzuki H,Hosono A,Arakawa K,Ghadimi R,Miyata M,Maeda K,Shibata K,Tokudome M,Goto C,Tokudome Y,Hoshino H,Imaeda N,Marumoto M,Suzuki S,Kobayashi M,Tokudome S

更新日期：2008-11-01 00:00:00

abstract：:The objective of the study is to describe two cases of proximal tibiofibular ganglion cysts in high level athletes. In May 2003 and March 2005 two athletes (one tennis player in the top eighty of the Italian national ranking and a gymnast belonging to the Italian rhythmic gymnastics national team) were referred to our...

journal_title：International journal of sports medicine

authors： Dragoni S,Giombini A,Di Cesare A,Ripani M

更新日期：2008-08-01 00:00:00

abstract：:Cough and chest wall pain at high altitude have only received passing mention in the medical literature. Increased minute ventilation of cold dry air at very high altitude is likely to cause airway irritation. This in turn may result in airway drying, mucus production, postnasal drip from vasomotor rhinitis, and bronc...

journal_title：International journal of sports medicine

authors： Litch JA,Tuggy M

更新日期：1998-04-01 00:00:00

abstract：:Using the indentation method, we investigated the effects of physical exercise (treadmill running 4 km/day for 15 weeks) on stiffness of the articular cartilage in the canine knee. Considering cartilage to be an elastic material with homogeneity and isotropy, we calculated elastic moduli for femoral, tibial, and patel...

journal_title：International journal of sports medicine

authors： Jurvelin J,Kiviranta I,Tammi M,Helminen HJ

更新日期：1986-04-01 00:00:00

abstract：:The aim of the present study was to investigate the relationships between heart rate variability (HRV) changes and both training variations and performances in elite swimmers. A secondary purpose was to measure catecholamine urinary excretion in elite swimmers to validate the HRV indices of sympathetic activity during...

journal_title：International journal of sports medicine

authors： Atlaoui D,Pichot V,Lacoste L,Barale F,Lacour JR,Chatard JC

更新日期：2007-05-01 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：:We aimed to determine whether blood flow restriction (BFR) alters the characteristics of individual motor units during low-intensity (LI) exercise. Eight men (26.0±3.8 yrs) performed 5 sets of 15 knee extensions at 20% of one-repetition maximum (with and without BFR). Maximal isometric voluntary contractions (MVC) wer...

journal_title：International journal of sports medicine

authors： Fatela P,Mendonca GV,Veloso AP,Avela J,Mil-Homens P

更新日期：2019-09-01 00:00:00

abstract：:During an exhaustive graded bicycle spiroergometer test, several arterial blood samples were taken from six type I diabetics and seven normal controls for determination of catecholamines and parameters of carbohydrate and lipid metabolism. In both groups during exercise, glucose remained unchanged, and lactate associa...

journal_title：International journal of sports medicine

authors： Jakober B,Schmülling RM,Eggstein M

更新日期：1983-05-01 00:00:00