abstract：INTRODUCTION:This study determines Chinese body segment parameters based on a magnetic resonance imaging method. METHODS:Fifty young Chinese men (21.5 ± 1.52 yr) participated in this study. Magnetic resonance images were obtained using a GE magnetic resonance imaging 1.5-T scanner with 10-mm thickness. The magnetic re...

journal_title：Medicine and science in sports and exercise

authors： Ho WH,Shiang TY,Lee CC,Cheng SY

更新日期：2013-09-01 00:00:00

abstract：INTRODUCTION:Recent data indicate a direct relationship between the sympathetic nervous system and bone metabolism. The purpose of this study was to evaluate the effects of a beta-1 adrenergic (Adrb1) agonist, dobutamine (DOB), on disuse-induced changes in bone integrity during 28 d of hindlimb unloading (HU). METHODS...

journal_title：Medicine and science in sports and exercise

authors： Swift JM,Hogan HA,Bloomfield SA

更新日期：2013-09-01 00:00:00

abstract：PURPOSE:Evasive sidestepping during sports commonly results in noncontact anterior cruciate ligament injuries. Sidestepping in response to different simple visual stimuli has been studied previously but never investigated using quasi-game-realistic visual conditions. We compared the biomechanics of high-level and low-l...

journal_title：Medicine and science in sports and exercise

authors： Lee MJ,Lloyd DG,Lay BS,Bourke PD,Alderson JA

更新日期：2013-09-01 00:00:00

abstract：:In many interventions that are based on an exercise program intended to induce weight loss, the mean weight loss observed is modest and sometimes far less than what the individual expected. The individual responses are also widely variable, with some individuals losing a substantial amount of weight, others maintainin...

journal_title：Medicine and science in sports and exercise

authors： Melanson EL,Keadle SK,Donnelly JE,Braun B,King NA

更新日期：2013-08-01 00:00:00

abstract：PURPOSE:Prolonged sitting time (ST) is associated with higher mortality. However, previous studies used only a single measure of ST at baseline, so they could not directly assess the effect of continued exposure to high ST, or of changes in ST, on mortality. We prospectively assessed the association of continued sedent...

journal_title：Medicine and science in sports and exercise

authors： León-Muñoz LM,Martínez-Gómez D,Balboa-Castillo T,López-García E,Guallar-Castillón P,Rodríguez-Artalejo F

更新日期：2013-08-01 00:00:00

abstract：PURPOSE:Little is known of the potential long-term gait alterations that occur after an anterior cruciate ligament (ACL) reconstruction. In particular, variables, such as impact loading, which have been previously associated with joint deterioration, have not been studied in walking and running after an ACL reconstruct...

journal_title：Medicine and science in sports and exercise

authors： Noehren B,Wilson H,Miller C,Lattermann C

更新日期：2013-07-01 00:00:00

abstract：PURPOSE:Habitual running has been associated with reduced risk of cataract development in one prospective study. The purposes of the current analyses were to provide further evidence of this potentially important benefit of vigorous exercise and to test whether moderate exercise (e.g., walking) provides as significant ...

journal_title：Medicine and science in sports and exercise

authors： Williams PT

更新日期：2013-06-01 00:00:00

abstract：PURPOSE:This is the first study to use the quiet eye (QE) as an objective measure of visuomotor control underpinning proficiency differences in children's motor coordination. METHODS:Fifty-seven, year 5 primary school children (9-10 yr old) completed the Movement Assessment Battery for Children, Second Edition (MABC-2...

journal_title：Medicine and science in sports and exercise

authors： Wilson MR,Miles CA,Vine SJ,Vickers JN

更新日期：2013-06-01 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:This study aimed to determine whether competitive intermittent exercise in the heat affects recovery, aggravates markers of muscle fiber damage, and delays the recovery of performance and muscle glycogen stores. METHODS:Plasma creatine kinase, serum myoglobin, muscle glycogen, and performance parameters (sprin...

journal_title：Medicine and science in sports and exercise

authors： Nybo L,Girard O,Mohr M,Knez W,Voss S,Racinais S

更新日期：2013-05-01 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:Recent literature suggests that subconcussive impacts may influence cognitive functioning across the life span. These effects are suggested to manifest as functional and possibly structural changes. Head impact biomechanics during American football have been characterized from the high school to professional le...

journal_title：Medicine and science in sports and exercise

authors： Martini D,Eckner J,Kutcher J,Broglio SP

更新日期：2013-04-01 00:00:00

abstract：PURPOSE:Pedometers may provide valuable information regarding the ambulatory patterns of adolescents, but the effects of body mass index (BMI) on pedometer accuracy in this population are unknown.The purpose of this study was twofold: 1) to determine whether the New Lifestyles NL-2000 (NL) and the Digi-Walker SW-200 (D...

journal_title：Medicine and science in sports and exercise

authors： Tyo BM,Bassett DR Jr,Coe DP,Feito Y,Thompson DL

更新日期：2013-03-01 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：PURPOSE:To compare pacing and performance of schoolchildren between running tasks where the end point was defined in units of either distance or time. METHODS:Thirty-eight schoolchildren (age = 12.6 ± 0.5 yr, mass = 46.2 ± 7.5 kg, stature = 150 ± 7 cm) first performed a best-effort 750-m running task on a 150-m runnin...

journal_title：Medicine and science in sports and exercise

authors： Chinnasamy C,St Clair Gibson A,Micklewright D

更新日期：2013-02-01 00:00:00

abstract：PURPOSE:Studies have demonstrated that a combination of mental and physical challenge can elicit exacerbated state anxiety, effort sense, and cortisol responses above that of a single stimulus. However, an analysis of the effects of aerobic fitness on the responses of cortisol to concurrent mental and physical stress b...

journal_title：Medicine and science in sports and exercise

authors： Webb HE,Rosalky DS,Tangsilsat SE,McLeod KA,Acevedo EO,Wax B

更新日期：2013-02-01 00:00:00

abstract：UNLABELLED:It is often reported that females lose less body weight than males do in response to exercise. These differences are suggested to be a result of females exhibiting a stronger defense of body fat and a greater compensatory appetite response to exercise than males do. PURPOSE:This study aimed to compare the e...

journal_title：Medicine and science in sports and exercise

authors： Caudwell P,Gibbons C,Hopkins M,King N,Finlayson G,Blundell J

更新日期：2013-02-01 00:00:00

abstract：PURPOSE:This study examined the direct, moderating, and indirect effects of dispositional optimism on the prediction of, and athletes' responses to, injury. METHODS:A 2-yr longitudinal design was conducted with a baseline sample of 694 asymptomatic participants (389 men, 305 women; mean ± SD age = 19.17 ± 1.69 yr), 10...

journal_title：Medicine and science in sports and exercise

authors： Wadey R,Evans L,Hanton S,Neil R

更新日期：2013-02-01 00:00:00

abstract：INTRODUCTION:The effects of glargine/glulisine insulin regimen on exercise blood glucose (BG) and strategies to limit exercise-induced hypoglycemia are not well documented. Intermittent high-intensity exercise has been proposed to prevent hypoglycemia, but its effect in participants with type 1 diabetes using glargine/...

journal_title：Medicine and science in sports and exercise

authors： Dubé MC,Lavoie C,Weisnagel SJ

更新日期：2013-01-01 00:00:00

abstract：UNLABELLED:Several investigators have demonstrated that chronic eccentric leg cycling is an effective method for improving lower body neuromuscular function (e.g., quadriceps muscle size, strength, and mobility) in a variety of patient and athletic populations. To date, there are no reports of using eccentric arm cycli...

journal_title：Medicine and science in sports and exercise

authors： Elmer SJ,Danvind J,Holmberg HC

更新日期：2013-01-01 00:00:00

abstract：PURPOSE:Supplementation with inorganic nitrate has been suggested to be an ergogenic aid for athletes as nitric oxide donor. The purpose of this study was to determine whether ingestion of inorganic sodium nitrate benefits well-trained athletes performing a 40-min exercise test in laboratory conditions. In addition, we...

journal_title：Medicine and science in sports and exercise

authors： Bescós R,Ferrer-Roca V,Galilea PA,Roig A,Drobnic F,Sureda A,Martorell M,Cordova A,Tur JA,Pons A

更新日期：2012-12-01 00:00:00

abstract：PURPOSE:The objective of this study is to determine the effect of body mass index (BMI) on level of agreement between six previously established prediction equations for three commonly used accelerometers to predict summary measures of energy expenditure (EE) in youth. METHODS:One hundred and thirty-one youth between ...

journal_title：Medicine and science in sports and exercise

authors： Warolin J,Carrico AR,Whitaker LE,Wang L,Chen KY,Acra S,Buchowski MS

更新日期：2012-12-01 00:00:00

abstract：PURPOSE:Hyperventilation increases the clearance of carbon monoxide (CO) from blood; thus, we hypothesized that CO elimination would be enhanced with exercise. Accordingly, this study examined the effect of exercise on the half-life of carboxyhemolobin elimination. METHODS:Six healthy subjects (three males and three f...

journal_title：Medicine and science in sports and exercise

authors： Zavorsky GS,Smoliga JM,Longo LD,Uhranowsky KA,Cadman CR,Duffin J,Fisher JA

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:This study compared the effect of an initial exercise consisting of either low-intensity eccentric or maximal isometric contractions (ISOs) on protective effect against maximal eccentric contraction (MaxECC)-induced muscle damage. METHODS:Untrained young men were placed into one of five groups (n = 13 per grou...

journal_title：Medicine and science in sports and exercise

authors： Chen TC,Chen HL,Pearce AJ,Nosaka K

更新日期：2012-11-01 00:00:00

abstract：INTRODUCTION:The GENEA shows high accuracy for classification of sedentary, household, walking, and running activities when sampling at 80 Hz on three axes. It is not known whether it is possible to decrease this sampling frequency and/or the number of axes without detriment to classification accuracy. The purpose of t...

journal_title：Medicine and science in sports and exercise

authors： Zhang S,Murray P,Zillmer R,Eston RG,Catt M,Rowlands AV

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:This study investigated the effects of the menstrual cycle on prolonged exercise performance both in temperate (20°C, 45% relative humidity) and hot, humid (32°C, 60% relative humidity) conditions. METHODS:For each environmental condition, 12 recreationally active females were tested during the early follicula...

journal_title：Medicine and science in sports and exercise

authors： Janse DE Jonge XA,Thompson MW,Chuter VH,Silk LN,Thom JM

更新日期：2012-11-01 00:00:00

abstract：OBJECTIVE:The present study evaluated the effects of an acute bout of moderate-intensity treadmill walking on aspects of cognitive control underlying successful academic achievement. METHODS:The study used a within-subjects counterbalanced design with a sample of 36 preadolescent children. Cognitive performance was as...

journal_title：Medicine and science in sports and exercise

authors： Drollette ES,Shishido T,Pontifex MB,Hillman CH

更新日期：2012-10-01 00:00:00

abstract：PURPOSE:Although several studies have shown that immune cells stimulated by in vitro stress are capable to produce neurotrophins, there is still no evidence whether physiological stress, such as exercise, can modulate the in vivo levels of brain-derived neurotrophic factor (BDNF) in peripheral blood mononuclear cells (...

journal_title：Medicine and science in sports and exercise

authors： Brunelli A,Dimauro I,Sgrò P,Emerenziani GP,Magi F,Baldari C,Guidetti L,Di Luigi L,Parisi P,Caporossi D

更新日期：2012-10-01 00:00:00

abstract：PURPOSE:It has been well established in mammals that circadian behavior as well as the molecular clockwork can be synchronized to the light-dark cycle via the suprachiasmatic nucleus of the hypothalamus (SCN). In addition to light, it has been demonstrated that nonphotic time cues, such as restricting the time of food ...

journal_title：Medicine and science in sports and exercise

authors： Wolff G,Esser KA

更新日期：2012-09-01 00:00:00

abstract：UNLABELLED:Controversy surrounds whether running mechanics make good predictors of running economy (RE) with little known about the development of an economical running gait. PURPOSE:The aim of this study was to identify if mechanical or physiological variables changed during 10 wk of running in beginners and whether ...

journal_title：Medicine and science in sports and exercise

authors： Moore IS,Jones AM,Dixon SJ

更新日期：2012-09-01 00:00:00

abstract：PURPOSE:Despite endorsement by various health organizations, there is a lack of research on the effectiveness of perceptually regulated exercise training (PRET) as a method of exercise intensity prescription. The purpose of this study was to confirm the efficacy of an 8-wk PRET program clamped at RPE13 to improve aerob...

journal_title：Medicine and science in sports and exercise

authors： Parfitt G,Evans H,Eston R

更新日期：2012-08-01 00:00:00

abstract：PURPOSE:This study aimed to evaluate the effect of an exercise program of two different intensities, with nutritional control, on gestational weight gain (GWG), infant birth weight, and maternal weight retention at 2 months postpartum (2 mopp). METHODS:Pregnant women (prepregnancy body mass index = 18.5-24.9 kg·m) wer...

journal_title：Medicine and science in sports and exercise

authors： Ruchat SM,Davenport MH,Giroux I,Hillier M,Batada A,Sopper MM,Hammond JM,Mottola MF

更新日期：2012-08-01 00:00:00

abstract：PURPOSE:The purpose of this study was to examine the ability of the YMCA submaximal exercise test protocol using a total body recumbent stepper to predict V˙O(2peak). METHODS:Of 112 individuals initially screened, 110 individuals with low to moderate cardiovascular disease risk met the inclusion criteria for participa...

journal_title：Medicine and science in sports and exercise

authors： Billinger SA,VAN Swearingen E,McClain M,Lentz AA,Good MB

更新日期：2012-08-01 00:00:00

abstract：PURPOSE:Above a given exercise intensity, rapid muscle fatigue will occur. We explored the possibility of assessing torque threshold for peripheral fatigue during single-legged repetitive isometric knee extensor exercise. We hypothesized this fatigue threshold to be related to the general aerobic fitness level and the ...

journal_title：Medicine and science in sports and exercise

authors： de Ruiter CJ,Maas EA,Wesseling MG,de Haan A

更新日期：2012-07-01 00:00:00

abstract：INTRODUCTION:It is well established that regular physical activity (PA) contributes to lower levels of morbidity and mortality. However, little is known about the stability of very young children's PA habits across seasons and years. The aims of this study were to 1) examine the influence of season and increasing age o...

journal_title：Medicine and science in sports and exercise

authors： McKee DP,Murtagh EM,Boreham CA,Nevill AM,Murphy MH

更新日期：2012-07-01 00:00:00

abstract：INTRODUCTION:Although both humans and quadrupeds frequently coordinate breathing and limb movement during running, early studies in humans focused on how increased breathing flexibility in humans allowed for relaxed or even transient coordination during locomotion. This difference was used to explain why quadrupeds had...

journal_title：Medicine and science in sports and exercise

authors： Willcockson MA,Wall-Scheffler CM

更新日期：2012-07-01 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:Type 2 diabetes is associated with increased risk of cardiovascular disease and elevated C-reactive protein (CRP) levels. Aerobic exercise training has been shown to improve CRP; however, there are limited data evaluating the effect of other exercise training modalities (aerobic, resistance, or combination trai...

journal_title：Medicine and science in sports and exercise

authors： Swift DL,Johannsen NM,Earnest CP,Blair SN,Church TS

更新日期：2012-06-01 00:00:00

abstract：PURPOSE:Aerodynamic drag plays an important role in performance for athletes practicing sports that involve high-velocity motions. In giant slalom, the skier is continuously changing his/her body posture, and this affects the energy dissipated in aerodynamic drag. It is therefore important to quantify this energy to un...

journal_title：Medicine and science in sports and exercise

authors： Meyer F,Le Pelley D,Borrani F

更新日期：2012-06-01 00:00:00

abstract：PURPOSE:The study's purpose was to relate body mass index (BMI) to body fat percentage as measured by dual-energy x-ray absorptiometry in female elite athletes from different sports and nonathletic controls and to investigate what characterizes the athletes with unhealthy low and high body fat values. METHODS:This stu...

journal_title：Medicine and science in sports and exercise

authors： Klungland Torstveit M,Sundgot-Borgen J

更新日期：2012-05-01 00:00:00