Accuracy and repeatability of the Polar RS800sd to evaluate stride rate and running speed.

abstract：:This study investigated the relationship between sports participation/physical activity during youth (13 - 18 years of age) and adulthood (30 - 40 years of age), and cardiovascular risk factors (body fat and fat distribution, blood pressure, lipoprotein levels and cardiorespiratory fitness) at 40 years of age. Subject...

journal_title：International journal of sports medicine

authors： Lefevre J,Philippaerts R,Delvaux K,Thomis M,Claessens AL,Lysens R,Renson R,Vanden Eynde B,Vanreusel B,Beunen G

更新日期：2002-05-01 00:00:00

abstract：:This study compared rectal temperature (Tre), heat sensation and sweating between obese and non-obese boys during cycling in the heat. Participants (aged 12-15 years) were 17 obese and 16 non-obese (BMI=29.4±4.3 and 16.8±1.7 kg · m⁻², respectively) boys. They cycled for 30-min (50-55% VO(2peak)) in a climatic chamber ...

journal_title：International journal of sports medicine

authors： Sehl PL,Leites GT,Martins JB,Meyer F

更新日期：2012-06-01 00:00:00

abstract：:Aortic elastic properties are important determinants of left ventricular function. The aim of this study was to determine left ventricular diastolic function and aortic distensibility in endurance athletes. Thirty male runners and thirty age-matched healthy male controls took part in the study. All subjects underwent ...

journal_title：International journal of sports medicine

authors： Kasikcioglu E,Kayserilioglu A,Oflaz H,Akhan H

更新日期：2005-04-01 00:00:00

abstract：:The purpose of this randomized controlled trial was to determine the effects of an 8-week (aerobic+strength) exercise training program (3 sessions/week) on the circulating cytokine levels of breast cancer survivors. We randomly allocated 16 female survivors of breast cancer (mean±SD age: 50±5 years) to an intervention...

journal_title：International journal of sports medicine

authors： Gómez AM,Martínez C,Fiuza-Luces C,Herrero F,Pérez M,Madero L,Ruiz JR,Lucia A,Ramírez M

更新日期：2011-06-01 00:00:00

abstract：:The effects of physical activity (PA) on bioenergetic characteristics were studied in 53 prepubertal boys. Maximal oxygen consumption (VO2max; direct method), maximal anaerobic power (Pmax, force-velocity test), and mean power in 30 s (P30s, Wingate test) were compared (mean +/- SD) in three groups of boys of the same...

journal_title：International journal of sports medicine

authors： Falgairette G,Duche P,Bedu M,Fellmann N,Coudert J

更新日期：1993-11-01 00:00:00

abstract：:This study aimed at investigating to what extent sauna-induced dehydration is effective to rapidly decrease body weight and whether this practice alters strength and/or explosive power (jump capacity) in healthy athletes. We also investigated whether the observed changes could be rapidly reversed through rehydration. ...

journal_title：International journal of sports medicine

authors： Gutiérrez A,Mesa JL,Ruiz JR,Chirosa LJ,Castillo MJ

更新日期：2003-10-01 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 relationships between perceived exertion and the physiological variables oxygen uptake (VO2), heart rate (HR) and blood lactate concentration (HLa) were studied in tethered swimming. Seven male and ten female subjects swam at five submaximal intensities. The degree of perceived exertion was measured both on the ca...

journal_title：International journal of sports medicine

authors： Ueda T,Kurokawa T

更新日期：1995-08-01 00:00:00

abstract：:The phase angle is used to evaluate nutritional status and is an indicator of cellular health. Cardiorespiratory fitness and body composition are strong indicators of health during adolescence. We aimed to evaluate if body composition and cardiorespiratory fitness have an association with phase angle among adolescents...

journal_title：International journal of sports medicine

authors： Langer RD,de Fatima Guimarães R,Gonçalves EM,Guerra-Junior G,de Moraes AM

更新日期：2020-08-01 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：: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 aim of this study was to compare the maximal lactate steady state (MLSS) and ventilatory threshold (VT) under different environments (TEMP: 22°C; and HOT: 40°C; 50% RH). 8 male subjects (age 23.9±2.4 years, body mass 75.9±7.3 kg and VO2(max) 47.8±4.9 mL·kg(-1)·min(-1)) performed a series of tests to determine the ...

journal_title：International journal of sports medicine

authors： de Barros CL,Mendes TT,Mortimer LÁ,Simões HG,Prado LS,Wisloff U,Silami-Garcia E

更新日期：2011-10-01 00:00:00

abstract：:The purpose of this study was to establish the content validity of the Rodeo SCAT for the sport of rodeo and bull riding. The study design was comprised of expert consensus and content validation. A modified Ebel procedure was employed to content validate the rodeo SCAT. Content validation using this method includes e...

journal_title：International journal of sports medicine

authors： Lafave MR,Butterwick DJ,Murray RP,Freeman T,Lau BH

更新日期：2013-02-01 00:00:00

abstract：:This investigation evaluated the effects of beverage carbonation and carbohydrate (CHO) content on fluid replacement following exercise/thermal dehydration. On four occasions separated by at least 7 days, eight healthy men cycled at 50% of VO2max in a hot environmental chamber (40 degrees C, 40% relative humidity) unt...

journal_title：International journal of sports medicine

authors： Lambert CP,Costill DL,McConell GK,Benedict MA,Lambert GP,Robergs RA,Fink WJ

更新日期：1992-05-01 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：: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 purpose of this study is to investigate whether a periosteum patch could enhance polyethylene terephthalate (PET) artificial ligament graft osseointegration in a bone tunnel. 12 female goats underwent ACL reconstruction with a PET artificial ligament graft in the right knees. Right knees in 6 goats were reconstruc...

journal_title：International journal of sports medicine

authors： Dai Z,Bao W,Li S,Li H,Jiang J,Chen S

更新日期：2016-06-01 00:00:00

abstract：:Amenorrhea and osteoporosis are strongly associated in female athletes. Amenorrheic women show lower serum levels of brain-derived neurotrophic factor (BDNF) than eumenorrheic women. BDNF is known to regulate bone tissue development and remodeling; thus, athletes with low serum BDNF levels may show low bone mass. This...

journal_title：International journal of sports medicine

authors： Nose S,Yoshino O,Nomoto K,Harada M,Dohi M,Kawahara T,Osuga Y,Fujii T,Saito S

更新日期：2019-04-01 00:00:00

abstract：:Length and weight for age (1-12 months) charts are presented for the longitudinal Euro-Growth Study. "Weight-for-length", another widely used growth chart, presents a problem from a methodological point of view. Target length values (53-77 cm) are not observed in all infants, leading to truncated age distributions at ...

journal_title：International journal of sports medicine

authors： van't Hof MA,Haschke F

更新日期：1997-07-01 00:00:00

abstract：:Prolonged altitude exposure usually leads to considerable weight loss of which a large part is from muscle tissue. This loss reduces maximum alactic anaerobic muscle power. It was hypothesized that most of the weight loss may simply be the result of malnutrition due to lack of palatable food in an uncomfortable enviro...

journal_title：International journal of sports medicine

authors： Kayser B,Narici M,Milesi S,Grassi B,Cerretelli P

更新日期：1993-07-01 00:00:00

abstract：:To examine the acute influence of pedaling cadence on arterial stiffness in young men, 15 healthy men (21.8±0.4 years) underwent 3 trials in self-control crossover design: non-cycling control (CON), cycling at 60 (RPM60) and 90 rounds per min (RPM90). Cycling lasted 30 min at intensity of 35% heart rate reserve. Arter...

journal_title：International journal of sports medicine

authors： Yin J,Wu H,Yu L,Zhang J,Zhu W

更新日期：2019-01-01 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：: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：:Within a 3-year period, from 1980 to 1982, 1124 sports injuries of children aged 6-15 years were treated in the Turku University Central Hospital casualty department. Two-thirds (69%) of the injuries were sustained by boys. Sports injuries represented 21% of the diagnoses related to accidents in this age group. Half o...

journal_title：International journal of sports medicine

authors： Kvist M,Kujala UM,Heinonen OJ,Vuori IV,Aho AJ,Pajulo O,Hintsa A,Parvinen T

更新日期：1989-04-01 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：:Quadriceps atrophy and weakness can persist for years after anterior cruciate ligament reconstruction (ACLR). We evaluated the effectiveness of a home-based blood flow restriction (BFR) exercise program to increase quadriceps size and strength several years after ACLR. Nine adults with ACLR (5±2 yrs post-surgery, ≤90%...

journal_title：International journal of sports medicine

authors： Kilgas MA,Lytle LLM,Drum SN,Elmer SJ

更新日期：2019-09-01 00:00:00

abstract：:Muscle biopsies from m. vastus lateralis of two world class shot putters (shot putter 1 and 2) and the untrained brother of shot putter 1 were analyzed for fiber type distribution with ATPase staining and in situ hybridization for the expression of alkali myosin light chain (MLC) isoforms. Shot putter 2 had a predomin...

journal_title：International journal of sports medicine

authors： Billeter R,Jostarndt-Fögen K,Günthör W,Hoppeler H

更新日期：2003-04-01 00:00:00

abstract：:The ratio between the amount of hemoglobin in the mature erythrocyte population and the reticulocytes (RBCHb:RetHb ratio) has previously been suggested as a marker to screen for EPO-abuse. We speculated that the reinfusion of blood would lead to a marked increase in this ratio, making it a valuable parameter in the sc...

journal_title：International journal of sports medicine

authors： Mørkeberg J,Belhage B,Ashenden M,Bornø A,Sharpe K,Dziegiel MH,Damsgaard R

更新日期：2009-04-01 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：: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