Biomechanical evaluation of bilateral tibial spiral fractures during skiing--a case study.

abstract：UNLABELLED:Although effects of workload and cadence on sagittal plane knee biomechanics in cycling have been widely studied, few studies have examined their impact on the frontal plane. PURPOSE:The purpose of this study was to investigate the effects of different workloads and cadences on knee sagittal and frontal pla...

journal_title：Medicine and science in sports and exercise

authors： Fang Y,Fitzhugh EC,Crouter SE,Gardner JK,Zhang S

更新日期：2016-02-01 00:00:00

abstract：PURPOSE:Physical exercise or hypoxic exposure influences hemorheology and acid-base homeostasis. Band 3 protein in erythrocytes modulates cells' rheological properties and anion transport ability. This study investigated how cycling aerobic interval training (AIT) and moderate continuous training (MCT) affect the rheol...

journal_title：Medicine and science in sports and exercise

authors： Chou SL,Huang YC,Fu TC,Hsu CC,Wang JS

更新日期：2016-01-01 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：:The reproducibility of the Bruce exercise test protocol for the determination of maximal aerobic activity was evaluated in sedentary older women. Seventeen women between the ages of 51 and 68 yr performed five maximal graded exercise tests to volitional fatigue on a treadmill. VO2max (mL.kg-1.min-1) values averaged 27...

journal_title：Medicine and science in sports and exercise

authors： Fielding RA,Frontera WR,Hughes VA,Fisher EC,Evans WJ

更新日期：1997-08-01 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:One approach to studying the effects of aging on physiological functional capacity (PFC) in humans is to analyze the peak physical performance of trained athletes with increasing age. The primary aim of the present study was to determine weightlifting and powerlifting performance with increasing age in both men...

journal_title：Medicine and science in sports and exercise

authors： Anton MM,Spirduso WW,Tanaka H

更新日期：2004-01-01 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：:The individual anaerobic threshold (IAT) is the highest metabolic rate at which blood lactate (LA) concentrations are maintained at a steady state during prolonged exercise. The purpose of this study was to compare the effects of active and passive recovery on the determination of the IAT before and after an endurance...

journal_title：Medicine and science in sports and exercise

authors： McLellan TM,Jacobs I

更新日期：1989-10-01 00:00:00

abstract：PURPOSES:To validate the energy expenditure estimated from The Minnesota Leisure Time Physical Activity Questionnaire (MLTPAQ) with total energy expenditure (TEE) measured by doubly labeled water (DLW), and to present and examine the validity of an extended version of the MLTPAQ with additional questions about inactivi...

journal_title：Medicine and science in sports and exercise

authors： Slinde F,Arvidsson D,Sjöberg A,Rossander-Hulthén L

更新日期：2003-11-01 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

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：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:Physical activity plays an important role in the prevention of many serious diseases. To develop targeted strategies that encourage physical activity, knowledge of stability of physical activity levels over time is essential. The aim of this study was to examine tracking of leisure time physical activity in adu...

journal_title：Medicine and science in sports and exercise

authors： Morseth B,Jørgensen L,Emaus N,Jacobsen BK,Wilsgaard T

更新日期：2011-07-01 00:00:00

abstract：UNLABELLED:We previously reported that a mathematical model could accurately predict steady-state road-cycling power when all the model parameters were known. Application of that model to competitive cycling has been limited by the need to obtain accurate parameter values, the non-steady-state nature of many cycling ev...

journal_title：Medicine and science in sports and exercise

authors： Martin JC,Gardner AS,Barras M,Martin DT

更新日期：2006-03-01 00:00:00

abstract：INTRODUCTION:Insulin resistance in obesity is decreased after successful diet and exercise. Aerobic exercise training alone was evaluated as an intervention in subjects with the metabolic syndrome. METHODS:Eighteen nondiabetic, sedentary subjects, 11 with the metabolic syndrome, participated in 8 wk of increasing inte...

journal_title：Medicine and science in sports and exercise

authors： Stuart CA,South MA,Lee ML,McCurry MP,Howell ME,Ramsey MW,Stone MH

更新日期：2013-11-01 00:00:00

abstract：PURPOSE:Muscle injury is the most common sports injury. Muscle stiffness, a risk factor for muscle injury, is lower in females than in males, implying that sex-related genetic polymorphisms influence muscle injury associated with muscle stiffness. The present study aimed to clarify the associations between two genetic ...

journal_title：Medicine and science in sports and exercise

authors： Kumagai H,Miyamoto-Mikami E,Hirata K,Kikuchi N,Kamiya N,Hoshikawa S,Zempo H,Naito H,Miyamoto N,Fuku N

更新日期：2019-01-01 00:00:00

abstract：PURPOSE:The best sprint performances are usually reached between the ages of 20 and 30 yr; however, even in well-trained individuals, performance continues to decrease with age. Although this inevitable decrease in performance has been related to reductions in muscular force, velocity, and power capabilities, these mea...

journal_title：Medicine and science in sports and exercise

authors： Pantoja PD,Saez DE Villarreal E,Brisswalter J,Peyré-Tartaruga LA,Morin JB

更新日期：2016-12-01 00:00:00

abstract：PURPOSE:To assess the validity of the new Actical accelerometer step count function. METHODS:Actical step counts were compared according to two criterion standards. 1) Eight Acticals were assessed using a mechanical shaker table under six different testing conditions. 2) Thirty-eight volunteers (aged 9-59 yr) wore eig...

journal_title：Medicine and science in sports and exercise

authors： Esliger DW,Probert A,Connor Gorber S,Bryan S,Laviolette M,Tremblay MS

更新日期：2007-07-01 00:00:00

abstract：:This study investigates the relationship between exercise and dietary macronutrient selection. Female Sprague-Dawley rats (5 months old) were placed on a macronutrient self-selection diet for 15 wk. Three food cups, each containing a separate vitamin and mineral supplemented macronutrient, i.e., fat, carbohydrate, or ...

journal_title：Medicine and science in sports and exercise

authors： Miller GD,Dimond AG,Stern JS

更新日期：1994-12-01 00:00:00

abstract：PURPOSE:To compare the maximum oxygen uptake V0(2max) of elite endurance athletes and to explain why the body mass exponent, necessary to render V0(2max) independent of body mass, appears to be greater than 0.67. METHODS:Study 1: V0(2max) of 174 international sportsmen and women was assessed. Athletes were recruited f...

journal_title：Medicine and science in sports and exercise

authors： Nevill A,Brown D,Godfrey R,Johnson P,Romer L,Stewart AD,Winter EM

更新日期：2003-03-01 00:00:00

abstract：:To discriminate suitable fire fighters from recurring large groups of applicants, an objective test battery was developed which screened applicants on the basis of physical, psychomotor, and mental abilities. The physical and psychomotor selection procedures first involved fundamental tests of general aerobic enduranc...

journal_title：Medicine and science in sports and exercise

authors： Brownlie L,Brown S,Diewert G,Good P,Holman G,Laue G,Banister E

更新日期：1985-12-01 00:00:00

abstract：PURPOSE:This study investigated whether flexibility training would attenuate muscle damage induced by maximal eccentric exercise. METHODS:Thirty untrained young men were allocated to static stretching (SS), proprioceptive neuromuscular facilitation (PNF), or control group (n = 10 per group). The SS consisted of 30 set...

journal_title：Medicine and science in sports and exercise

authors： Chen CH,Nosaka K,Chen HL,Lin MJ,Tseng KW,Chen TC

更新日期：2011-03-01 00:00:00

abstract：PURPOSE:Orienteering athletes must adapt to running on various surfaces, with biomechanics likely contributing to performance. Here, our aims were to identify the effect of athletic status and of surface on the running biomechanics of orienteers. METHODS:Seven elite and seven amateur male orienteers ran 20 m on road, ...

journal_title：Medicine and science in sports and exercise

authors： Hébert-Losier K,Mourot L,Holmberg HC

更新日期：2015-02-01 00:00:00

abstract：PURPOSE:The purpose of this investigation was to determine heart rate (HR)/oxygen consumption (VO2) calibration curves for exercising and sedentary women during pregnancy and the postpartum periods. METHODS:Fifty-two women were studied at three time points: 20 wk gestation, 32 wk gestation, and 12 wk postpartum. Subje...

journal_title：Medicine and science in sports and exercise

authors： Pivarnik JM,Stein AD,Rivera JM

更新日期：2002-05-01 00:00:00

abstract：PURPOSE:Cardiac troponin T (cTnT) is a highly specific marker of myocardial damage and used clinically in the diagnosis of acute myocardial infarction (AMI). Release of cTnT has been demonstrated in several small studies after endurance exercise. The purpose of this study was to explore, using a meta-analytic approach,...

journal_title：Medicine and science in sports and exercise

authors： Shave R,George KP,Atkinson G,Hart E,Middleton N,Whyte G,Gaze D,Collinson PO

更新日期：2007-12-01 00:00:00

abstract：PURPOSE:Resting cardiac vagal modulation (RCVM) and postexercise vagal reactivation (PEVR) are markers of parasympathetic activity. We investigated whether adaptations in these markers to aerobic training are influenced by baseline autonomic control. METHODS:Forty healthy men (19.2 ± 0.8 yr) of similar cardiorespirato...

journal_title：Medicine and science in sports and exercise

authors： Duarte A,Soares PP,Pescatello L,Farinatti P

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:Previous studies have suggested that extreme endurance exercise may induce cardiac microdamage that could lead to subsequent myocardial fibrosis. Soluble suppression of tumorigenicity 2 (sST2) is a cardiac biomarker for assessment of myocardial fibrosis, inflammation, and strain. We evaluated baseline and exerc...

journal_title：Medicine and science in sports and exercise

authors： Aengevaeren VL,VAN Kimmenade RRJ,Hopman MTE,VAN Royen N,Snider JV,Januzzi JL,George KP,Eijsvogels TMH

更新日期：2019-03-01 00:00:00

abstract：:We examined illness patterns in a cohort of 530 male and female runners who completed a monthly log for 12 months. The average number of upper respiratory tract infections (URTIs) per person per year for the cohort was 1.2. An upper respiratory tract infection was indicated by the report of any of the following sympto...

journal_title：Medicine and science in sports and exercise

authors： Heath GW,Ford ES,Craven TE,Macera CA,Jackson KL,Pate RR

更新日期：1991-02-01 00:00:00

abstract：PURPOSE:This study aimed to examine the effect of altering osmolality or adding sodium alginate and pectin to a concentrated carbohydrate (CHO) beverage on gastric-emptying (GE) rate. METHODS:Boluses (500 mL) of three drinks were instilled double blind in eight healthy men while seated, GE was measured using the doubl...

journal_title：Medicine and science in sports and exercise

authors： Sutehall S,Galloway SDR,Bosch A,Pitsiladis Y

更新日期：2020-08-01 00:00:00

abstract：PURPOSE:The purpose of this study was to determine whether muscle power, activation time, and neuromuscular stimulation are related to physical activity patterns in older women. METHODS:Forty women (65-84 yr) were assigned to high-active (HA) and low-active (LA) groups on the basis of a historical activity questionnai...

journal_title：Medicine and science in sports and exercise

authors： Laroche DP,Knight CA,Dickie JL,Lussier M,Roy SJ

更新日期：2007-09-01 00:00:00