Reliability of motor-evoked potentials during resting and active contraction conditions.

abstract：PURPOSE:Physically active women have a reduced risk of breast cancer, but the dose of activity necessary and the role of energy balance and other potential mechanisms have not been fully explored in animal models. We examined treadmill and wheel running effects on mammary tumorigenesis and biomarkers in p53-deficient (...

journal_title：Medicine and science in sports and exercise

authors： Colbert LH,Westerlind KC,Perkins SN,Haines DC,Berrigan D,Donehower LA,Fuchs-Young R,Hursting SD

更新日期：2009-08-01 00:00:00

abstract：PURPOSE:To characterize the hemodynamic and ventilatory responses to exercise in a group of patients with unexplained dyspnea, increased risk for pulmonary arterial hypertension (PAH), and an elevated mean pulmonary artery pressure (mPAP; >30 mm Hg) on exercise. METHODS:A total of 37 symptomatic patients at risk of PA...

journal_title：Medicine and science in sports and exercise

authors： Fowler RM,Maiorana AJ,Jenkins SC,Gain KR,O'Driscoll G,Gabbay E

更新日期：2011-06-01 00:00:00

abstract：:The purpose of the study was to evaluate selected parameters describing performance characteristics of a free-weight and isokinetic bench press. A secondary purpose was an attempt to clarify the technique requirements essential for a successful lift. Parameters describing the free-weight condition were generated from ...

journal_title：Medicine and science in sports and exercise

authors： Lander JE,Bates BT,Sawhill JA,Hamill J

更新日期：1985-06-01 00:00:00

abstract：PURPOSE:The objective of this study is to investigate the effect of three different workplace interventions on long-term compliance, muscle strength gains, and neck/shoulder pain in office workers. METHODS:A 1-yr randomized controlled intervention trial was done with three groups: specific resistance training (SRT, n ...

journal_title：Medicine and science in sports and exercise

authors： Andersen LL,Jørgensen MB,Blangsted AK,Pedersen MT,Hansen EA,Sjøgaard G

更新日期：2008-06-01 00:00:00

abstract：PURPOSE:The purpose of the present study was to examine the effect of muscle activity level on serum creatine kinase (CK) activity after high-force eccentric exercise of the elbow flexors. METHODS:Twenty-six male volunteers were randomly assigned to one of three groups for a 4-d treatment period after exercise: immobi...

journal_title：Medicine and science in sports and exercise

authors： Sayers SP,Clarkson PM,Lee J

更新日期：2000-09-01 00:00:00

abstract：:1) Many otherwise healthy runners are prevented from participating fully in their chosen endurance sport because of overuse injuries. 2) The most important risk factor for incurring an overuse injury is a training error, such as excessive mileage, sudden change in training distance or intensity, too much hard interval...

journal_title：Medicine and science in sports and exercise

authors： O'Toole ML

更新日期：1992-09-01 00:00:00

abstract：PURPOSE:One purpose was to test the hypothesis that anxiety reductions following exercise are caused by a "time out" from daily cares and worries, and the second purpose was to document the magnitude of the change in state anxiety after exercise in high trait anxious females. METHODS:Anxious women (N = 14) completed f...

journal_title：Medicine and science in sports and exercise

authors： Breus MJ,O'Connor PJ

更新日期：1998-07-01 00:00:00

abstract：PURPOSE:High-throughput profiling of metabolic status (metabolomics) allows for the assessment of small-molecule metabolites that may participate in exercise-induced biochemical pathways and corresponding cardiometabolic risk modification. We sought to describe the changes in a diverse set of plasma metabolite profiles...

journal_title：Medicine and science in sports and exercise

authors： Brennan AM,Benson M,Morningstar J,Herzig M,Robbins J,Gerszten RE,Ross R

更新日期：2018-07-01 00:00:00

abstract：:Pyruvate and dihydroxyacetone are three carbon compounds that when infused directly into the blood or taken orally produce strong metabolic effects. When chronically fed to animals as part of their diet, pyruvate plus dihydroxyacetone reduce the rate of weight gain and body fat content during growth. These alterations...

journal_title：Medicine and science in sports and exercise

authors： Ivy JL

更新日期：1998-06-01 00:00:00

abstract：BACKGROUND:The Sedentary Sphere is a method for the analysis, identification, and visual presentation of sedentary behaviors from a wrist-worn triaxial accelerometer. PURPOSE:This study aimed to introduce the concept of the Sedentary Sphere and to determine the accuracy of posture classification from wrist acceleromet...

journal_title：Medicine and science in sports and exercise

authors： Rowlands AV,Olds TS,Hillsdon M,Pulsford R,Hurst TL,Eston RG,Gomersall SR,Johnston K,Langford J

更新日期：2014-06-01 00:00:00

abstract：:Maximal lactate steady state (MLSS) refers to the upper limit of blood lactate concentration indicating an equilibrium between lactate production and lactate elimination during constant workload. The aim of the present study was to investigate whether different levels of MLSS may explain different blood lactate concen...

journal_title：Medicine and science in sports and exercise

authors： Beneke R,von Duvillard SP

更新日期：1996-02-01 00:00:00

abstract：PURPOSE:The purpose of this study was to determine the effects of early outpatient exercise on muscle mass, function, and fractional synthetic rate in severely burned children. METHODS:Forty-seven children with ≥40% total body surface area burn performed a 12-wk standard of care rehabilitation (SOC, n = 23) or rehabil...

journal_title：Medicine and science in sports and exercise

authors： Hardee JP,Porter C,Sidossis LS,Børsheim E,Carson JA,Herndon DN,Suman OE

更新日期：2014-09-01 00:00:00

abstract：PURPOSE:To examine relationships between selected sociodemographic, health-related and environmental factors and levels of physical activity in older adults across three age groups. METHODS:Seven hundred sixty-four older adults (mean age = 77.4 +/- 8.6 yr) from a midsize Canadian city completed a self-administered que...

journal_title：Medicine and science in sports and exercise

authors： Chad KE,Reeder BA,Harrison EL,Ashworth NL,Sheppard SM,Schultz SL,Bruner BG,Fisher KL,Lawson JA

更新日期：2005-10-01 00:00:00

abstract：OBJECTIVE:To evaluate the effect of chronic moderate-intensity exercise upon the alterations of immune system cell function induced by energy restriction. METHODS:Forty male Wistar rats were randomly assigned to the following groups: sedentary animals fed ad libitum (SF, N = 10) or submitted to energy restriction (SER...

journal_title：Medicine and science in sports and exercise

authors： Dos Santos Cunha WD,Giampietro MV,De Souza DF,Vaisberg M,Seelaender MC,Rosa LF

更新日期：2004-12-01 00:00:00

abstract：PURPOSE:The purpose of this study was to identify electromyographic (EMG) differences in the latent muscle reaction timing (LMRT) of the rotator cuff between trained overhead throwers and control subjects in response to sudden internal rotation perturbation (P < or = 0.05). METHODS:Subjects included 15 trained overhea...

journal_title：Medicine and science in sports and exercise

authors： Brindle TJ,Nyland J,Shapiro R,Caborn DN,Stine R

更新日期：1999-10-01 00:00:00

abstract：PURPOSE:Light-intensity physical activity (LIPA) accounts for much of adults' waking hours (≈40%) and substantially contributes to overall daily energy expenditure. Encompassing activity behaviors of low intensity (standing with little movement) to those of higher intensity (slow walking), LIPA is ubiquitous, yet littl...

journal_title：Medicine and science in sports and exercise

authors： Howard B,Winkler EA,Sethi P,Carson V,Ridgers ND,Salmon JO,Healy GN,Owen N,Dunstan DW

更新日期：2015-10-01 00:00:00

abstract：:Increased vertical impact loading during running has been associated with a variety of running related injuries including stress fractures, patellofemoral pain, and plantar fasciitis. PURPOSE:The purpose of this study was to examine the acute and long-term effect of a gait retraining program aimed at teaching runners...

journal_title：Medicine and science in sports and exercise

authors： Bowser BJ,Fellin R,Milner CE,Pohl MB,Davis IS

更新日期：2018-12-01 00:00:00

abstract：:The purposes of this investigation were to compare selected gait parameters characteristic of running without respiratory apparatus on a treadmill (NOR) with those displayed while wearing a mouthpiece-breathing valve apparatus (MP) and while wearing a respiratory face mask (MASK), and to compare the running economy (R...

journal_title：Medicine and science in sports and exercise

authors： Siler WL

更新日期：1993-02-01 00:00:00

abstract：:The objective of this study was to design and validate a working tool for the objective evaluation of daily energy expenditure (DEE) by means of a simple, noninvasive method: the QAPSE (Saint-Etienne Physical Activity Questionnaire), a questionnaire about physical activity (PA) over a period of 7 d (168 h). This eight...

journal_title：Medicine and science in sports and exercise

authors： Berthouze SE,Minaire PM,Chatard JC,Boutet C,Castells J,Lacour JR

更新日期：1993-12-01 00:00:00

abstract：BACKGROUND:Stress fracture (SF) injuries in new recruits have long been attributed to low bone mineral density (BMD). Low areal BMD assessed using two-dimensional dual-energy x-ray absorptiometry imaging, however, reflects structural density and is affected by smaller measures of bone geometry. Recent studies support a...

journal_title：Medicine and science in sports and exercise

authors： Evans RK,Negus C,Antczak AJ,Yanovich R,Israeli E,Moran DS

更新日期：2008-11-01 00:00:00

abstract：PURPOSE:The purpose of this study was twofold: (a) to measure the effects of temporal parameters on both ball velocity and upper limb joint kinetics to identify pathomechanical factors during the tennis serve and (b) to validate these pathomechanical factors by comparing injured and noninjured players. METHODS:The ser...

journal_title：Medicine and science in sports and exercise

authors： Martin C,Kulpa R,Ropars M,Delamarche P,Bideau B

更新日期：2013-11-01 00:00:00

abstract：:In 1983 a representative sample of Danish adolescents 16-19 yr of age were selected to participate in a study to determine risk profile for coronary heart disease. Eight years later (1991), we performed a follow-up study of the same participants 23-27 yr of age to compare risk factors. In the young adults power was ge...

journal_title：Medicine and science in sports and exercise

authors： Andersen LB,Haraldsdóttir J

更新日期：1994-08-01 00:00:00

abstract：PURPOSE:To better understand the mechanical behavior of healing skeletal muscle; specifically the tissue's response after acute eccentric stretch injury. METHODS:Rabbit tibialis anterior (TA) muscle tendon units were subjected to an in vivo single stretch (eccentric) injury and mechanically evaluated (constant rate el...

journal_title：Medicine and science in sports and exercise

authors： Corr DT,Leverson GE,Vanderby R Jr,Best TM

更新日期：2003-09-01 00:00:00

abstract：:Exercise and noise exposure causes temporary hearing loss. Yet, a direct relationship may exist between cardiovascular health and hearing. The purpose of this study was to determine whether noise and exercise caused different levels of hearing loss depending on one's cardiovascular fitness. Twenty-eight volunteers wer...

journal_title：Medicine and science in sports and exercise

authors： Manson J,Alessio HM,Cristell M,Hutchinson KM

更新日期：1994-07-01 00:00:00

abstract：PURPOSE:Objective measurement with body worn instrumentation is a preferred and increasingly common way to gather information about young people's physical activity. Measured samples have been typically small and recruited through schools. The purpose of this article was to present the descriptive epidemiology of child...

journal_title：Medicine and science in sports and exercise

authors： Craig CL,Cameron C,Griffiths JM,Tudor-Locke C

更新日期：2010-09-01 00:00:00

abstract：:Physical inactivity has been linked to rates of obesity, diabetes, and heart disease through insulin resistance and other mechanisms. Although sedentary workplace environments have unintentionally contributed to the risk for chronic diseases, innovations in the workplace environment could potentially rectify this publ...

journal_title：Medicine and science in sports and exercise

authors： Han HO,Lim J,Viskochil R,Aguiar EJ,Tudor-Locke C,Chipkin SR

更新日期：2018-10-01 00:00:00

abstract：PURPOSE:This study was designed to determine whether serum leptin levels were affected by a 5-d military course after 3 wk of combat training. METHODS:26 male soldiers (mean age = 21 +/- 2 yr) were examined at the beginning of the training program and just at the end of the 5-d course. The combination of continuous he...

journal_title：Medicine and science in sports and exercise

authors： Gomez-Merino D,Chennaoui M,Drogou C,Bonneau D,Guezennec CY

更新日期：2002-10-01 00:00:00

abstract：PURPOSE:We investigated the knee-extensor torque at which reoxygenation (inflow of arterial blood) during an isometric contraction stopped, whether this torque depended on maximal torque capacity (MTC), and whether there were differences among the synergists. METHODS:Isometric knee-extension torque was measured using ...

journal_title：Medicine and science in sports and exercise

authors： de Ruiter CJ,Goudsmit JF,Van Tricht JA,de Haan A

更新日期：2007-03-01 00:00:00

abstract：UNLABELLED:The extent of and the interactions between muscle strength, walking speed, postural control, and symptomatic fatigue in multiple sclerosis (MS) are not known, nor are the effects of bilateral strength asymmetries on these variables. PURPOSE:To quantify the magnitude of and the associations between bilateral...

journal_title：Medicine and science in sports and exercise

authors： Chung LH,Remelius JG,Van Emmerik RE,Kent-Braun JA

更新日期：2008-10-01 00:00:00

abstract：PURPOSE:To assess physical activity, and its associations with health, clinical, and biochemical factors, in patients with stages 2-4 of chronic kidney disease (CKD). METHODS:Cross-sectional data were collected from 120 patients with CKD enrolled in the Lipid lowering and Onset of Renal Disease (LORD) trial. Patients ...

journal_title：Medicine and science in sports and exercise

authors： Fassett RG,Robertson IK,Geraghty DP,Ball MJ,Burton NW,Coombes JS

更新日期：2009-05-01 00:00:00