Utility of a Non-Exercise VO2max Prediction Model for Designing Ramp Test Protocols.

abstract：:Blood pressure (BP) assessment during resistance exercise can be useful to avoid high BP, reducing cardiovascular risk, especially in hypertensive individuals. However, non-invasive accurate technique for this purpose is not available. The aim of this study was to compare finger photoplethysmographic (FPP) and intra-a...

journal_title：International journal of sports medicine

authors： Gomides RS,Dias RM,Souza DR,Costa LA,Ortega KC,Mion D Jr,Tinucci T,de Moraes Forjaz CL

更新日期：2010-08-01 00:00:00

abstract：:Chlorhexidine-containing mouthwash (STRONG), which disturbs oral microflora, has been shown to diminish the rise in plasma nitrite concentration ([NO2-]) and attenuate the reduction in resting blood pressure (BP) typically seen after acute nitrate (NO3-) ingestion. We aimed to determine whether STRONG and weaker antis...

journal_title：International journal of sports medicine

authors： McDonagh ST,Wylie LJ,Winyard PG,Vanhatalo A,Jones AM

更新日期：2015-12-01 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：:Leukocytosis was postulated to accompany short- and medium-length exercise; in this report, we have studied the changes in leukocyte count during and following prolonged exercise. White blood cell (WBC) counts were obtained in 15 endurance-trained subjects before, during, and at a recovery period after an ultralong ex...

journal_title：International journal of sports medicine

authors： Galun E,Burstein R,Assia E,Tur-Kaspa I,Rosenblum J,Epstein Y

更新日期：1987-08-01 00:00:00

abstract：:Low back pain (LBP) is a common symptom in the populations of western countries, and adolescent athletes seem to be prone to LBP. The main objective of this study was to analyze the point (LBP within the last 48 h), 1-year (LBP within the last 12 months) and lifetime (LBP within the entire life) prevalence rates of LB...

journal_title：International journal of sports medicine

authors： Schmidt CP,Zwingenberger S,Walther A,Reuter U,Kasten P,Seifert J,Günther KP,Stiehler M

更新日期：2014-07-01 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：: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 purpose of this investigation was to identify physiological predictors of maximum treadmill walking performance (MWD) in patients with intermittent claudication. Forty-five claudicants performed a graded treadmill test to determine MWD, peak oxygen uptake, and gas exchange threshold. Calf muscle oxygenation (StO (...

journal_title：International journal of sports medicine

authors： Tew GA,Nawaz S,Blagojevic M,Zwierska I,Saxton JM

更新日期：2009-06-01 00:00:00

abstract：:Aerobic exercise performance decreases upon ascent to altitude whereas anaerobic performance remains unchanged. Although the effects of 1 - 3 wk of altitude acclimatization on both aerobic and anaerobic exercise performance have been well studied, the effects of short-term altitude acclimatization (i.e., 45 h) on thes...

journal_title：International journal of sports medicine

authors： Burtscher M,Faulhaber M,Flatz M,Likar R,Nachbauer W

更新日期：2006-08-01 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：:The aim of the current study was to determine the validity of an automated multiple-camera tracking system (Venatrack™), for the measurement of speed during soccer. 18 recreationally active males (mean age 27±8.6 years) performed a series of runs (total 391), representative of the movements made by soccer players, at ...

journal_title：International journal of sports medicine

authors： Redwood-Brown A,Cranton W,Sunderland C

更新日期：2012-08-01 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：:Over the past 25 years sport climbing has developed from an elite extreme sport subculture pursued by few into a mainstream recreational sport enjoyed globally by climbers of all ages, climbing abilities, and with pre-existing health conditions. As the demands and grades of climbing difficulty have increased over this...

journal_title：International journal of sports medicine

authors： Kuepper T,Morrison A,Gieseler U,Schoeffl V

更新日期：2009-06-01 00:00:00

abstract：:Our purpose was to determine if an acute bout of heading soccer balls adversely affected postural control and self-reported symptoms of cerebral concussion. Thirty-one college-aged soccer players were randomly placed into either a kicking group or a heading group. Subjects either kicked or headed 18 soccer balls over ...

journal_title：International journal of sports medicine

authors： Schmitt DM,Hertel J,Evans TA,Olmsted LC,Putukian M

更新日期：2004-07-01 00:00:00

abstract：:The oxygen uptake (VO2) attained during a constant speed 800-m pace trial on a treadmill is less than the maximal VO2 (VO2max) in male middle-distance runners with a high VO2max (i.e., > 65 ml x kg (-1) x min (-1)). We therefore investigated whether the VO2 attained was influenced by the pacing strategy adopted. Eight...

journal_title：International journal of sports medicine

authors： Sandals LE,Wood DM,Draper SB,James DV

更新日期：2006-01-01 00:00:00

abstract：:There is a potential need for the official criterion of testosterone abuse in sport (the urinary concentration ratio of testosterone glucuronide/epitestosterone glucuronide, TG/EG > 6) to be backed-up by some complementary markers, more particularly in cases of physiologically high TG/EG and when there is suspicion of...

journal_title：International journal of sports medicine

authors： Dehennin L,Pérès G

更新日期：1996-07-01 00:00:00

abstract：:This study examined the relationship between PhA and short-term maximal intensity efforts in soccer players, and was conducted in 99 male soccer players, ages 19-36 years. Bioelectrical impedance was used to assess body fat, fat free mass (FFM) and PhA (phase angle). Running Anaerobic Sprint Test (RAST) was used to ev...

journal_title：International journal of sports medicine

authors： Nabuco HCG,Silva AM,Sardinha LB,Rodrigues FB,Tomeleri CM,Ravagnani FCP,Cyrino ES,Ravagnani CFC

更新日期：2019-10-01 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：: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：: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：:This study examined the effects of a pre-experimental period of arm exercise followed by a 24-h carbohydrate (CHO)-poor intake, intended to reduce initial hepatic glycogen levels, on substrate and endocrine responses during prolonged CHO-loaded leg exercise. Seven subjects pedaled a cycle ergometer for 60 min at 62% V...

journal_title：International journal of sports medicine

authors： Lavoie JM,Péronnet F,Cousineau D,Provencher PJ

更新日期：1984-06-01 00:00:00

abstract：:Secretory IgA (S-IgA) levels in stimulated salvia were measured before and after a maximal treadmill test in a population of 175 young adults (84 men, 91 women). Habitual physical activity levels of this population were measured by a standardized interview, and scores were obtained for the amount of time and intensity...

journal_title：International journal of sports medicine

authors： Schouten WJ,Verschuur R,Kemper HC

更新日期：1988-08-01 00:00:00

abstract：:The aim of the present study was to investigate the relationship between maximal fat oxidation rate (MFO) measured during a progressive exercise test on a cycle ergometer and ultra-endurance performance. 61 male ironman athletes (age: 35±1 yrs. [23-47 yrs.], with a BMI of 23.6±0.3 kg/m2 [20.0-30.1 kg/m2], a body fat p...

journal_title：International journal of sports medicine

authors： Frandsen J,Vest SD,Larsen S,Dela F,Helge JW

更新日期：2017-11-01 00:00:00

abstract：:The primary purpose of this investigation was to compare 31 competitive female swimmers with 31 competitive male swimmers on their perceptual responses to submaximal swimming. A secondary purpose was to evaluate the relationship between heart rate (HR) and perceived exertion (RPE) in swimming. Each swimmer completed a...

journal_title：International journal of sports medicine

authors： Koltyn KF,O'Connor PJ,Morgan WP

更新日期：1991-08-01 00:00:00

abstract：:Although analysis of lactate concentrations with a Yellow Springs Instruments (YSI) automated analyzer has become very popular in Sports Medicine, the accuracy and reliability of this technique has not been carefully studied. Additionally, the influence of a common lysing agent Triton X-100 (TX) on blood lactate measu...

journal_title：International journal of sports medicine

authors： Bishop PA,Smith JF,Kime JC,Mayo JM,Tin YH

更新日期：1992-01-01 00:00:00

abstract：:The aim of the present study was to evaluate a heart transplanted patient who ran a 20-km race 9 months after surgery. Thirty-six healthy male subjects were studied during the same run and served as control group. Biochemical variables were determined in blood and urine samples collected before and after the race. Pos...

journal_title：International journal of sports medicine

authors： Niset G,Poortmans JR,Leclercq R,Brasseur M,Desmet JM,Degré S,Primo G

更新日期：1985-12-01 00:00:00

abstract：:The aim of this study was to determine if stepping cadence when controlling for total steps has a differential impact on regional vascular function. 16 young adults (21±2 years) performed fast (125 steps per min) and slow (80 steps per min) walking for a total of 3 000 steps on separate days. Doppler ultrasound was us...

journal_title：International journal of sports medicine

authors： Compton RO,Ulcak M,Gonzales JU

更新日期：2015-11-01 00:00:00

abstract：:The O2 equivalent of lactic acid accumulation in blood was estimated from data on ten subjects acclimatized to altitudes up to 6500 m in the course of a Mt. Everest expedition. The calculated value of the O2 equivalent of La by standard least squares regression was 2.07 +/- 0.4 l O2 for a rise of blood lactic acid con...

journal_title：International journal of sports medicine

authors： Cerretelli P,Binzoni T

更新日期：1990-02-01 00:00:00

abstract：:This study investigated whether 4 weeks of daily supplementation with 500 or 1000 mg of Vitamin C and 500 or 1000 IU of Vitamin E could modify biochemical and ultrastructural indices of muscle damage following a 21 km run. Fifteen experienced male distance runners were divided into two groups (vitamin or placebo) and ...

journal_title：International journal of sports medicine

authors： Dawson B,Henry GJ,Goodman C,Gillam I,Beilby JR,Ching S,Fabian V,Dasig D,Morling P,Kakulus BA

更新日期：2002-01-01 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