Effects of body position on slide boarding performance by cross-country skiers.

abstract：:Forces that are repeatedly applied to the body could lead to positive remodeling of a structure if the forces fall below the tensile limit of the structure and if sufficient time is provided between force applications. On the other hand, an overuse injury could result if there is inadequate rest time between applied f...

journal_title：Medicine and science in sports and exercise

authors： Hreljac A

更新日期：2004-05-01 00:00:00

abstract：:The physiological mechanism of exercise-induced hyperfibrinolysis is not fully understood. It has been reported that exercise increases plasma arginine vasopressin (PAVP) and that PAVP infusion enhances blood fibrinolytic activity (FA). To characterize the fibrinolytic role of PAVP during exercise, PAVP and FA were ex...

journal_title：Medicine and science in sports and exercise

authors： el-Sayed MS

更新日期：1990-08-01 00:00:00

abstract：:Physical activity has been shown to be inversely related to coronary heart disease (CHD). The role of high density lipoprotein (HDL) particles in the process of reverse cholesterol transport may be a link between exercise and the prevention of CHD. The aim of the present study was to evaluate the effects of acute exer...

journal_title：Medicine and science in sports and exercise

authors： Campaigne BN,Fontaine RN,Park MS,Rymaszewski ZJ

更新日期：1993-12-01 00:00:00

abstract：PURPOSE:To determine which combination of landing protocol and analysis technique would be the most effective at detecting differences in dynamic stability between healthy subjects and subjects with functional ankle instability (FAI). METHODS:Fifty-eight subjects participated in this investigation: 29 healthy individu...

journal_title：Medicine and science in sports and exercise

authors： Wikstrom EA,Tillman MD,Borsa PA

更新日期：2005-02-01 00:00:00

abstract：PURPOSE:Aerobic training (AT) and high-intensity intermittent training (HIIT) reduce arterial stiffness, whereas resistance training (RT) induces deterioration of or no change in arterial stiffness. However, the molecular mechanism of these effects of different exercise modes remains unclear. This study aimed to clarif...

journal_title：Medicine and science in sports and exercise

authors： Hasegawa N,Fujie S,Horii N,Miyamoto-Mikami E,Tsuji K,Uchida M,Hamaoka T,Tabata I,Iemitsu M

更新日期：2018-06-01 00:00:00

abstract：UNLABELLED:Clinical treatment in physical rehabilitation routinely uses perceived relative forces. PURPOSE:This study used psychophysical methods to quantify subjects' errors during submaximal muscular force production. METHODS:A sample of young adult (aged 23 +/- 3 yr) females (N = 60, 62 +/- 14 kg) and males (N = 5...

journal_title：Medicine and science in sports and exercise

authors： Jackson AW,Dishman RK

更新日期：2000-02-01 00:00:00

abstract：PURPOSE:To study the effect of genetic factors, birth weight, early childhood growth, sport, hours of training, and pubertal status on the stature and body mass index (BMI) of children aged 9-13 participating in sports at a competitive level. METHODS:A total of 184 children (96 girls, 88 boys), competing in swimming, ...

journal_title：Medicine and science in sports and exercise

authors： Damsgaard R,Bencke J,Matthiesen G,Petersen JH,Müller J

更新日期：2000-10-01 00:00:00

abstract：PURPOSE:To determine whether females with chronic ankle instability (CAI) demonstrated decreased dynamic postural stability compared with controls in the anterior, lateral, and medial jump directions. METHODS:Individuals with CAI (n = 24) reported a history of moderate to severe ankle sprain, two or more episodes of g...

journal_title：Medicine and science in sports and exercise

authors： Brown CN,Bowser B,Orellana A

更新日期：2010-12-01 00:00:00

abstract：INTRODUCTION:Interval exercise training can elicit physiological adaptations similar to those of traditional endurance training, but with reduced time. However, the intense nature of specific protocols, particularly the "all-out" efforts characteristic of sprint interval training (SIT), may be perceived as being aversi...

journal_title：Medicine and science in sports and exercise

authors： Stork MJ,Kwan MY,Gibala MJ,Martin Ginis KA

更新日期：2015-05-01 00:00:00

abstract：PURPOSE:The frequency of interruptions in sedentary time (sedentary breaks) is an aspect of sedentary behaviors that may be associated with metabolic health outcomes. The aim of this study was to describe the change in the frequency of sedentary breaks during a 10-yr period from ages 5 to 15 yr. METHODS:The longitudin...

journal_title：Medicine and science in sports and exercise

authors： Kwon S,Burns TL,Levy SM,Janz KF

更新日期：2012-06-01 00:00:00

abstract：PURPOSE:To examine the effects of prolonged systemic administration of diclofenac sodium (Voltaren), a nonsteroidal anti-inflammatory drug, on objective indices of exercise-induced muscle damage in humans. METHODS:Fifty-four volunteers (mean age, 26.4 yr; range, 18-35) participated in this randomized double-blind, pla...

journal_title：Medicine and science in sports and exercise

authors： O'Grady M,Hackney AC,Schneider K,Bossen E,Steinberg K,Douglas JM Jr,Murray WJ,Watkins WD

更新日期：2000-07-01 00:00:00

abstract：PURPOSE:Patellar tendon abnormality (PTA) on diagnostic imaging is part of the diagnostic criteria for patellar tendinopathy. PTA and altered landing strategies are primary risk factors that increase the likelihood of asymptomatic athletes developing patellar tendinopathy. Therefore, the aim of this study was to examin...

journal_title：Medicine and science in sports and exercise

authors： Mann KJ,Edwards S,Drinkwater EJ,Bird SP

更新日期：2013-03-01 00:00:00

abstract：:Ten pairs of monozygotic twins of both sexes were submitted to a 20-wk endurance-training program, four and five times per week, 40 min per session, at an average of 80% of the maximal heart rate reserve. Testing and training were performed on cycle ergometers. Maximal aerobic power (MAP in ml O2 X min-1 X kg-1) and v...

journal_title：Medicine and science in sports and exercise

authors： Prud'homme D,Bouchard C,Leblanc C,Landry F,Fontaine E

更新日期：1984-10-01 00:00:00

abstract：:Twelve 9- to 12-year-old children (6 boys, 6 girls) performed four exercise-in-heat (35 degrees C, 45% RH) trials which differed in the composition of the fluids they drank. In each trial, subjects cycled for one 20-min and two 15-min bouts at 50% peak VO2 with 10-min rest periods in between. In a fourth bout, they cy...

journal_title：Medicine and science in sports and exercise

authors： Meyer F,Bar-Or O,MacDougall D,Heigenhauser GJ

更新日期：1995-06-01 00:00:00

abstract：PURPOSE:To compare the effects of different patterns of regular brisk walking on fitness, risk factors for cardiovascular disease, and psychological well-being in previously sedentary adults. METHODS:Twenty-one subjects (14 women), aged 44.5 +/- 6.1 yr (mean +/- SD) were randomly assigned to two different, 6-wk progra...

journal_title：Medicine and science in sports and exercise

authors： Murphy M,Nevill A,Neville C,Biddle S,Hardman A

更新日期：2002-09-01 00:00:00

abstract：PURPOSE:To test for relationships between objectively measured habitual physical activity and fundamental movement skills in a relatively large and representative sample of preschool children. METHODS:Physical activity was measured over 6 d using the Computer Science and Applications (CSA) accelerometer in 394 boys an...

journal_title：Medicine and science in sports and exercise

authors： Fisher A,Reilly JJ,Kelly LA,Montgomery C,Williamson A,Paton JY,Grant S

更新日期：2005-04-01 00:00:00

abstract：PURPOSE:The extent to which the diaphragm is targeted during a bout of inspiratory muscle training (IMT) is unknown. The purpose of this study was to characterize the relative activation patterns of the diaphragm and extradiaphragmatic inspiratory muscles during a bout of IMT and to determine whether diaphragmatic recr...

journal_title：Medicine and science in sports and exercise

authors： Ramsook AH,Koo R,Molgat-Seon Y,Dominelli PB,Syed N,Ryerson CJ,Sheel AW,Guenette JA

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:Sleep is considered essential for muscle recovery, mainly due to its effect on hormone secretion. Total sleep deprivation or restriction is known to alter not only blood hormones but also cytokines that might be related to skeletal muscle recovery. This study aimed to evaluate whether total sleep deprivation af...

journal_title：Medicine and science in sports and exercise

authors： Dáttilo M,Antunes HKM,Galbes NMN,Mônico-Neto M,DE Sá Souza H,Dos Santos Quaresma MVL,Lee KS,Ugrinowitsch C,Tufik S,DE Mello MT

更新日期：2020-02-01 00:00:00

abstract：INTRODUCTION:Parents play a critical role in shaping children's attitudes, beliefs, and behaviors, including those around physical activity and inactivity. Our ability to identify which practices effectively promote children's physical activity and limit inactivity is limited by existing measurement instruments. This p...

journal_title：Medicine and science in sports and exercise

authors： Vaughn AE,Hales D,Ward DS

更新日期：2013-12-01 00:00:00

abstract：:We provide an updated version of the Compendium of Physical Activities, a coding scheme that classifies specific physical activity (PA) by rate of energy expenditure. It was developed to enhance the comparability of results across studies using self-reports of PA. The Compendium coding scheme links a five-digit code t...

journal_title：Medicine and science in sports and exercise

authors： Ainsworth BE,Haskell WL,Whitt MC,Irwin ML,Swartz AM,Strath SJ,O'Brien WL,Bassett DR Jr,Schmitz KH,Emplaincourt PO,Jacobs DR Jr,Leon AS

更新日期：2000-09-01 00:00:00

abstract：BACKGROUND:For optimal health benefits, moderate- to vigorous-intensity physical activity (MVPA) is recommended in sustained bouts lasting ≥10 min. However, short spurts of MVPA lasting <10 min are more common in everyday life. It is unclear whether short spurts of MVPA further protect against the development of hypert...

journal_title：Medicine and science in sports and exercise

authors： White DK,Gabriel KP,Kim Y,Lewis CE,Sternfeld B

更新日期：2015-11-01 00:00:00

abstract：PURPOSE:This study examined some physiological and performance responses to a 6-d taper, and the influence of training intensity and volume on these responses. METHODS:After 15 wk of training, 8 well-trained male middle-distance runners were randomly assigned to either a moderate volume taper (MVT, N = 4) or a low vol...

journal_title：Medicine and science in sports and exercise

authors： Mujika I,Goya A,Padilla S,Grijalba A,Gorostiaga E,Ibañez J

更新日期：2000-02-01 00:00:00

abstract：:A group of 103 female weight lifters (WL) and 92 control (C) women answered a survey concerning eating behavior and attitudes (including the Eating Disorder Inventory) and menstrual function. The incidence of menstrual dysfunction, defined as oligomenorrhea plus amenorrhea, was significantly higher for the WL (30%) th...

journal_title：Medicine and science in sports and exercise

authors： Walberg JL,Johnston CS

更新日期：1991-01-01 00:00:00

abstract：:To study effort tolerance in elderly women with different physical activity backgrounds, 52 physically active (PA) and 42 sedentary control women (CO) aged 66-85 yr were assigned to perform cycle ergometer exercise to their volitional maximum. Oxygen uptake, respiratory exchange ratio (RER), heart rate, work power, an...

journal_title：Medicine and science in sports and exercise

authors： Kallinen M,Suominen H,Vuolteenaho O,Alen M

更新日期：1998-01-01 00:00:00

abstract：PURPOSE:Identify the prevalence of and traits that may increase the risk of low bone mineral density (BMD) among 93 female adolescent competitive endurance runners. METHODS:Participants were 93 high school runners, ages 13-18 yr, from southern California. Eating attitudes and behaviors were assessed using the Eating D...

journal_title：Medicine and science in sports and exercise

authors： Barrack MT,Rauh MJ,Nichols JF

更新日期：2008-12-01 00:00:00

abstract：:This study assessed body density (BD) in an ethnically diverse sample of women (African American, Caucasian, Mexican American and Native American) (N = 139) who were between 20 and 30 or 40 and 50 yr of age and of normal weight for their height. BD was assessed using three methods: hydrostatically determined density (...

journal_title：Medicine and science in sports and exercise

authors： Thomas KT,Keller CS,Holbert KE

更新日期：1997-01-01 00:00:00

abstract：PURPOSE:We performed two experiments to determine whether cutaneous microvascular adaptations in response to repeated core temperature (Tc) elevation are mediated by increases in skin blood flow (SkBF) and/or skin temperature. METHODS:Healthy subjects participated for 8 wk in thrice-weekly bouts of 30-min lower limb h...

journal_title：Medicine and science in sports and exercise

authors： Carter HH,Spence AL,Atkinson CL,Pugh CJ,Cable NT,Thijssen DH,Naylor LH,Green DJ

更新日期：2014-11-01 00:00:00

abstract：:The relationships between individual performance and lactate exchange and removal abilities were studies in 12 male rowers all subjected to three measurements on a rowing ergometer. An incremental exercise carried out to determine the maximal oxygen uptake (VO2max) and the corresponding maximal aerobic power (Pamax), ...

journal_title：Medicine and science in sports and exercise

authors： Messonnier L,Freund H,Bourdin M,Belli A,Lacour JR

更新日期：1997-03-01 00:00:00

abstract：PURPOSE:It is unclear how muscle strength in tibial rotation and knee abduction change following anterior cruciate ligament (ACL) injury and reconstruction. Such strength changes are likely, considering the oblique orientation of the ACL and the constraint provided by the ACL at various tibial rotation and adduction po...

journal_title：Medicine and science in sports and exercise

authors： Zhang LQ,Nuber GW,Bowen MK,Koh JL,Butler JP

更新日期：2002-01-01 00:00:00

abstract：:We examined ratings of breathlessness (BRE) as a predictor of perceived exertion (RPE) during incremental cycling at power outputs of 50, 75, and 100 W. Young females (21 yr +/- 1.9) diagnosed with mild asthma (N = 25) were compared with females having normal lung function (N = 25) matched for age, VO2peak, trait anxi...

journal_title：Medicine and science in sports and exercise

authors： Yorio JM,Dishman RK,Forbus WR,Cureton KJ,Graham RE

更新日期：1992-08-01 00:00:00