Physiological, anthropometric, and training correlates of running economy.

abstract：PURPOSE:Highly trained endurance athletes train and race at relatively high intensities and are often confronted with challenges throughout a running event. The purpose of this study was to examine the effects of the anticipation of a proposed challenge on effort sense, heart rate (HR), ventilation ([dotVE), and ventil...

journal_title：Medicine and science in sports and exercise

authors： Acevedo EO,Dzewaltowski DA,Kubitz KA,Kraemer RR

更新日期：1999-10-01 00:00:00

abstract：PURPOSE:The asthmatic airway responds to exercise by bronchodilation (BD) during and bronchoconstriction (BC) after exercise. A refractory period induced by an initial exercise challenge that provides protection against BC during a subsequent exercise bout has also been observed. However, no studies examining during-ex...

journal_title：Medicine and science in sports and exercise

authors： Rundell KW,Spiering BA,Judelson DA,Wilson MH

更新日期：2003-01-01 00:00:00

abstract：PURPOSE:The aim of this study was to compare the biomechanical changes during natural heel-toe running with learned midfoot and Pose running. METHODS:Twenty heel-toe runners were instructed in midfoot running and a novel running style in which the acromium, greater trochanter, and lateral malleolus are aligned in stan...

journal_title：Medicine and science in sports and exercise

authors： Arendse RE,Noakes TD,Azevedo LB,Romanov N,Schwellnus MP,Fletcher G

更新日期：2004-02-01 00:00:00

abstract：PURPOSE:To investigate the use of Tritrac accelerometers to measure energy expenditure (EE) of various activities for women in the field setting, as compared with portable indirect calorimetry. METHODS:Twenty women (age 20-29) performed a choreographed routine of six activities (walking, jogging, stair climbing, walki...

journal_title：Medicine and science in sports and exercise

authors： Campbell KL,Crocker PR,McKenzie DC

更新日期：2002-10-01 00:00:00

abstract：PURPOSE:To assess reliability and validity of the 7-d physical activity recall (PAR) in 60- to 80-yr-old men from urban and rural homes in the southeastern United States. METHODS:Two hundred twenty 60- to 80-yr-old men (29% minority ethnicity) from Veterans Affairs primary care clinics completed two PAR interviews at ...

journal_title：Medicine and science in sports and exercise

authors： Dubbert PM,Vander Weg MW,Kirchner KA,Shaw B

更新日期：2004-09-01 00:00:00

abstract：:A 19-yr-old college football player presents with a 1.5-yr history of right shoulder pain and associated easy fatigability of the right arm. The history is significant for an automobile accident 3 yr prior to presentation in which the right shoulder struck the dashboard of the car. An extensive workup proved unremarka...

journal_title：Medicine and science in sports and exercise

authors： Tucker AM

更新日期：1994-03-01 00:00:00

abstract：PURPOSE:Deceptive manipulations of performance intensity have previously been investigated in cycling time trials (TT) but used different magnitudes, methods, and task durations. This study examines previously used magnitudes of deception during 16.1-km TT and explores yet unexamined psychological responses. METHODS:T...

journal_title：Medicine and science in sports and exercise

authors： Williams EL,Jones HS,Sparks SA,Midgley AW,Marchant DC,Bridge CA,McNaughton LR

更新日期：2015-11-01 00:00:00

abstract：:To investigate the effect of temperature stress on responses to static-dynamic work in patients with ischemic heart disease (IHD), 10 men with IHD shoveled gravel for 30 min in a warm (29 degrees C), neutral (24 degrees C), and cold (-8 degrees C) environment (on separate days). A pace of 15 lifts.min-1 was set, and t...

journal_title：Medicine and science in sports and exercise

authors： Dougherty SM,Sheldahl LM,Wilke NA,Levandoski SG,Hoffman MD,Tristani FE

更新日期：1993-07-01 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：:The relationship between VO2 and velocity of running (running economy) has been rather casually dealt with until very recently, and there still remains considerable disagreement as to the importance of this variable. Various factors which have been shown, or appear, to affect running economy include environment (tempe...

journal_title：Medicine and science in sports and exercise

authors： Daniels JT

更新日期：1985-06-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare the predictive accuracy of previously published skinfold (SKF) equations for estimating body density of 134 premenopausal African-American women (18 to 40 yr). METHODS:The equations cross-validated were: the sum of seven skinfolds equation (JPW7) and the sum of three sk...

journal_title：Medicine and science in sports and exercise

authors： Irwin ML,Ainsworth BE,Stolarczyk LM,Heyward VH

更新日期：1998-11-01 00:00:00

abstract：INTRODUCTION:A nonlinear dynamic systems model has previously been proposed to explain pacing strategies employed during exercise. PURPOSE:This study was conducted to examine the pacing strategies used under varying conditions during the cycle phase of an Ironman triathlon. METHODS:The bicycles of six well-trained ma...

journal_title：Medicine and science in sports and exercise

authors： Abbiss CR,Quod MJ,Martin DT,Netto KJ,Nosaka K,Lee H,Surriano R,Bishop D,Laursen PB

更新日期：2006-04-01 00:00:00

abstract：:Acute and chronic positive mood changes have been said to occur with running and jogging. It has been suggested that endogenous substances with opioid activity (endorphins) may serve as modulators of mood. The authors report experiments in which mood changes associated with long-distance running were measured by pre- ...

journal_title：Medicine and science in sports and exercise

authors： Markoff RA,Ryan P,Young T

更新日期：1982-01-01 00:00:00

abstract：PURPOSE:Maternal obesity is known to predispose the offspring to impaired glucose metabolism and obesity associated with low-grade inflammation and hypothalamic dysfunction. Because preventive approaches in this context are missing to date, we aimed to identify molecular mechanisms in the offspring that are affected by...

journal_title：Medicine and science in sports and exercise

authors： Bae-Gartz I,Janoschek R,Kloppe CS,Vohlen C,Roels F,Oberthür A,Alejandre Alcazar MA,Lippach G,Muether PS,Dinger K,Ferrari N,Graf C,Dötsch J,Hucklenbruch-Rother E

更新日期：2016-05-01 00:00:00

abstract：:The assumption that lower extremity function is bilaterally symmetrical is prevalent throughout the biomechanics literature. The unilateral development of many overuse and acute injuries may suggest that this assumption is inaccurate. Analyses of bilateral function report conflicting results and may be partially attri...

journal_title：Medicine and science in sports and exercise

authors： Schot PK,Bates BT,Dufek JS

更新日期：1994-09-01 00:00:00

abstract：UNLABELLED:Physically active classroom lessons have been found to increase on-task behavior in children. Given that physical activity has been associated with an increased time on task (TOT) and that overweight children take fewer steps than normal weight children do, it was expected that benefits of the physical activ...

journal_title：Medicine and science in sports and exercise

authors： Grieco LA,Jowers EM,Bartholomew JB

更新日期：2009-10-01 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the physiological and performance responses to a simulated freestyle wrestling tournament after typical weight loss techniques used by amateur wrestlers. METHODS:Twelve Division I collegiate wrestlers (mean +/- SD;19.33 +/- 1.16 yr) lost 6% of total body weight duri...

journal_title：Medicine and science in sports and exercise

authors： Kraemer WJ,Fry AC,Rubin MR,Triplett-McBride T,Gordon SE,Koziris LP,Lynch JM,Volek JS,Meuffels DE,Newton RU,Fleck SJ

更新日期：2001-08-01 00:00:00

abstract：:The purposes of this study were to evaluate (a) the effects of step rate and upper body support on the VO2 and HR responses to fixed work rates on the StairMaster 4000 (SM), (b) the accuracy of the SM settings, and (c) how HR compared with that measured during grade-walking on a treadmill. Six subjects worked at a slo...

journal_title：Medicine and science in sports and exercise

authors： Howley ET,Colacino DL,Swensen TC

更新日期：1992-09-01 00:00:00

abstract：PURPOSE:To examine whether knowledge of the 1995 Centers for Disease Control and Prevention (CDC) and the American College of Sports Medicine (ACSM) national physical activity recommendations varies by sociodemographic, behavioral, and communication-related factors. METHODS:Cross-sectional analyses of 2381 participant...

journal_title：Medicine and science in sports and exercise

authors： Bennett GG,Wolin KY,Puleo EM,Mâsse LC,Atienza AA

更新日期：2009-10-01 00:00:00

abstract：PURPOSE:To examine the relationship between variable lower-limb coordination and shoulder joint kinetics and kinematics in the high-performance flat first serve in tennis. METHODS:Three-dimensional data describing three flat serve (FS) techniques, each executed with varying lower-limb involvement: foot-up (FU), foot-b...

journal_title：Medicine and science in sports and exercise

authors： Reid M,Elliott B,Alderson J

更新日期：2008-02-01 00:00:00

abstract：PURPOSE:The effect of exercise on body mass is likely to be partially mediated through changes in appetite control. However, no studies have examined the effect of chronic exercise on obestatin and cholecystokinin (CCK) plasma concentrations or the sensitivity to detect differences in preload energy in obese individual...

journal_title：Medicine and science in sports and exercise

authors： Martins C,Kulseng B,Rehfeld JF,King NA,Blundell JE

更新日期：2013-05-01 00:00:00

abstract：PURPOSE:To comprehensively quantify through daily, serial measures changes in knee laxity as a function of changing sex-hormone levels across one complete menstrual cycle. METHODS:Twenty-five females, 18 - 30 yr, body mass index < or = 30, who reported normal menstrual cycles (28-32 d) over the past 6 months participa...

journal_title：Medicine and science in sports and exercise

authors： Shultz SJ,Kirk SE,Johnson ML,Sander TC,Perrin DH

更新日期：2004-07-01 00:00:00

abstract：:Low-intensity exercise (less than or equal to 50% VO2max) has been demonstrated to produce heat acclimation (HA) in trained subjects. The purpose of this study was to determine whether shorter-duration, moderate-intensity exercise would also result in HA. Nine trained runners performed two 9-d exercise heat-stress pro...

journal_title：Medicine and science in sports and exercise

authors： Houmard JA,Costill DL,Davis JA,Mitchell JB,Pascoe DD,Robergs RA

更新日期：1990-10-01 00:00:00

abstract：PURPOSE:The study purposes were 1) to study the differences between perceived exertion measured by a generic (/10) or an individualized (/max value obtained during the test) score on the OMNI cycle scale (OMNImax and OMNI10) and the actual effort (peak oxygen consumption) at different stages of a maximal cycling test i...

journal_title：Medicine and science in sports and exercise

authors： Lemay V,O'Loughlin J,Tremblay A,Mathieu ME

更新日期：2013-05-01 00:00:00

abstract：PURPOSE:There is interest in the potential long-term use of dietary supplementation with bovine colostrum to enhance exercise performance. The purpose of the present study was to determine the dose effects of bovine colostrum on cycling performance. METHODS:Forty-two competitive cyclists were randomly divided into thr...

journal_title：Medicine and science in sports and exercise

authors： Coombes JS,Conacher M,Austen SK,Marshall PA

更新日期：2002-07-01 00:00:00

abstract：:The association between increasing age and decreasing vagal modulation is well known. However, the importance of fitness as a determinant of the decline in vagal modulation with age is not established. To test the hypothesis that decreasing vagal modulation is largely a function of declining fitness rather than increa...

journal_title：Medicine and science in sports and exercise

authors： Goldsmith RL,Bigger JT Jr,Bloomfield DM,Steinman RC

更新日期：1997-06-01 00:00:00

abstract：PURPOSE:To compare different methods of quantifying time in physical activity (PA). METHODS:Twenty-five participants (12 male, 13 female) volunteered to be monitored for seven consecutive days, during which different PA patterns were measured by the simultaneous heart-rate motion sensor technique (HR+M). At the end of...

journal_title：Medicine and science in sports and exercise

authors： Strath SJ,Bassett DR Jr,Ham SA,Swartz AM

更新日期：2003-12-01 00:00:00

abstract：PURPOSE:To investigate the effects of strenuous exercise on heart rate variability (HRV). METHODS:We evaluated the effects of exercise intensity and duration on HRV indices in 14 healthy trained subjects. Each subject exercised for 3, 6, and 9 min at 60 and 70% of the power achieved at maximal oxygen consumption (PVO2...

journal_title：Medicine and science in sports and exercise

authors： Pichon AP,de Bisschop C,Roulaud M,Denjean A,Papelier Y

更新日期：2004-10-01 00:00:00

abstract：PURPOSE:The benefits from physical activity (PA) and cardiorespiratory fitness (CRF) on normal age-related cognitive decline might be sex-dependent. Our aim was to explore the relationship between different types of PA, CRF and cognition and to identify the mediating effects of CRF in the association between PA and cog...

journal_title：Medicine and science in sports and exercise

authors： Castells-Sánchez A,Roig-Coll F,Lamonja-Vicente N,Torán-Monserrat P,Pera G,Montero P,Dacosta-Aguayo R,Bermudo-Gallaguet A,Bherer L,Erickson KI,Mataró M

更新日期：2020-12-23 00:00:00

abstract：INTRODUCTION:Low lean mass (LM) is a risk factor for chronic disease, a major cause of disability and diminished quality of life, and is a heritable trait. However, relatively few specific genetic factors have been identified as potentially influencing this trait. METHODS:In this study, we selected 1493 single-nucleot...

journal_title：Medicine and science in sports and exercise

authors： Klimentidis YC,Bea JW,Thompson P,Klimecki WT,Hu C,Wu G,Nicholas JS,Ryckman KK,Chen Z

更新日期：2016-07-01 00:00:00