Contralateral hamstring (biceps femoris) coactivation patterns and anterior cruciate ligament dysfunction.

abstract：PURPOSE:Similar to musician's focal dystonia, a task-specific phenomenon known as yips, has also been reported in professional athletes. Yips is usually described as focal dystonia, or choking under pressure, or as lying on a continuum between both. Based on the common occupational conditions across musicians and athle...

journal_title：Medicine and science in sports and exercise

authors： Ioannou CI,Klämpfl MK,Lobinger BH,Raab M,Altenmüller E

更新日期：2018-11-01 00:00:00

abstract：PURPOSE:Carnosine is a dipeptide composed of β-alanine and L-histidine and is present in skeletal muscle. Chronic oral β-alanine supplementation can induce muscle carnosine loading and is therefore seen as the rate-limiting factor for carnosine synthesis. However, the effect of L-histidine supplementation on carnosine ...

journal_title：Medicine and science in sports and exercise

authors： Blancquaert L,Everaert I,Missinne M,Baguet A,Stegen S,Volkaert A,Petrovic M,Vervaet C,Achten E,DE Maeyer M,DE Henauw S,Derave W

更新日期：2017-03-01 00:00:00

abstract：INTRODUCTION:Common life events, such as getting married or gaining employment, may be opportunities to intervene on health behaviors like physical activity. The purpose of this study was to determine the changes in moderate-to-vigorous physical activity (MVPA) associated with several common life events from adolescenc...

journal_title：Medicine and science in sports and exercise

authors： Miller J,Nelson T,Barr-Anderson DJ,Christoph MJ,Winkler M,Neumark-Sztainer D

更新日期：2019-04-01 00:00:00

abstract：PURPOSE:The purpose of this study is to examine whether performance supercompensation during taper is maximized in endurance athletes after experiencing overreaching during an overload training (OT) period. METHODS:Thirty-three trained male triathletes were assigned to either OT (n = 23) or normal training groups (n =...

journal_title：Medicine and science in sports and exercise

authors： Aubry A,Hausswirth C,Louis J,Coutts AJ,LE Meur Y

更新日期：2014-09-01 00:00:00

abstract：PURPOSE:Few epidemiological studies have been conducted among middle-aged women on long-term total and specific physical activity (PA) trends. We studied in a cross-sectional setting the relationship of self-reported total daily PA with age and calendar time. METHODS:In a population-based cohort of 38,988 women aged 4...

journal_title：Medicine and science in sports and exercise

authors： Orsini N,Bellocco R,Bottai M,Pagano M,Wolk A

更新日期：2006-02-01 00:00:00

abstract：PURPOSE:Evidence suggests that female adolescents and those living in urban environments may have lower physical activity (PA) levels compared with their peers. Yet few studies report PA for urban adolescent females, and there is no consensus regarding potential causes for low PA in this subgroup. We examined PA levels...

journal_title：Medicine and science in sports and exercise

authors： Rockette-Wagner B,Hipwell AE,Kriska AM,Storti KL,McTigue KM

更新日期：2017-04-01 00:00:00

abstract：PURPOSE:An augmented pulmonary artery wedge pressure (PAWP) response may explain exercise intolerance in some humans. However, routine use of exercise hemodynamic testing is limited by a lack of data from normal older men and women. Our objective was to evaluate the exercise PAWP response and the potential for sexual d...

journal_title：Medicine and science in sports and exercise

authors： Esfandiari S,Wright SP,Goodman JM,Sasson Z,Mak S

更新日期：2017-07-01 00:00:00

abstract：PURPOSE:To determine whether physical performance adaptation is impaired in smokers during early stages of military training and to examine some of the putative mechanistic candidates that could explain any impairment. METHODS:We examined measures of oxidative stress (malondialdehyde [MDA], lipid hydroperoxides), infl...

journal_title：Medicine and science in sports and exercise

authors： Siddall A,Bilzon J,Thompson D,Tauler P,Greeves J,Izard R,Stokes K

更新日期：2020-05-01 00:00:00

abstract：INTRODUCTION:Different therapies can improve clinical and motor symptoms of multiple sclerosis (MS) similarly, but studies comparing the effects of different exercise therapies on clinical and motor outcomes are scant. We compared the effects of exergaming (EXE), balance (BAL), cycling (CYC), proprioceptive neuromuscul...

journal_title：Medicine and science in sports and exercise

authors： Tollár J,Nagy F,Tóth BE,Török K,Szita K,Csutorás B,Moizs M,Hortobágyi T

更新日期：2020-05-01 00:00:00

abstract：:Many experimental studies have utilized the activity of dopamine-beta-hydroxylase (DBH) as an index of sympathetic activity, since this enzyme is not submitted to uptake mechanisms or to enzymatic metabolism as are the circulating catecholamines norepinephrine (NE) and epinephrine (E). However, large discrepancies hav...

journal_title：Medicine and science in sports and exercise

authors： Péronnet F,Cleroux J,Perrault H,Thibault G,Cousineau D,de Champlain J,Guilland JC,Klepping J

更新日期：1985-12-01 00:00:00

abstract：UNLABELLED:Ratings of perceived exertion (RPE) were developed to provide a subjective estimation of exercise intensity during exercise but are also used to produce exercise intensities and to report the intensity of completed exercise sessions. PURPOSE:To determine the relationship between RPE assessed before, during,...

journal_title：Medicine and science in sports and exercise

authors： Kilpatrick MW,Robertson RJ,Powers JM,Mears JL,Ferrer NF

更新日期：2009-03-01 00:00:00

abstract：PURPOSE:Compare the influence of the chemoreflex on heart rate (HR) and blood pressure (BP) responses between children and adults. METHODS:Seventy children (35 boys and 35 girls) and 70 adults (35 men and 35 women) performed 30% maximal voluntary contraction static handgrip exercise (SHG) for 3 min, followed by 4 min ...

journal_title：Medicine and science in sports and exercise

authors： Turley KR

更新日期：2005-03-01 00:00:00

abstract：PURPOSE:To test the hypothesis that the initial O2 uptake kinetics during exercise where the rise in blood flow (and, by implication, O2 delivery) to the working muscles during an abrupt increase in exercise intensity is reduced (i.e., arm exercise performed above the level of the heart) would be faster when preceded b...

journal_title：Medicine and science in sports and exercise

authors： Koppo K,Bouckaert J

更新日期：2005-04-01 00:00:00

abstract：:We examined whether the relation between of ratings of perceived exertion (RPE) and exercise intensities associated with the lactate threshold (LT) and blood lactate concentrations (BLC) of 2.5 and 4.0 mM, established with an incremental protocol, held during 30-min treadmill run at constant velocity (V). RPE (11.6, 1...

journal_title：Medicine and science in sports and exercise

authors： Steed J,Gaesser GA,Weltman A

更新日期：1994-06-01 00:00:00

abstract：INTRODUCTION:Unilateral elbow pain results in sensorimotor dysfunction that is frequently bilateral, affects local and remote upper limb muscles, and persists beyond resolution of local tendon symptoms. These characteristics suggest supraspinal involvement. Here, we investigated 1) the excitability and organization of ...

journal_title：Medicine and science in sports and exercise

authors： Schabrun SM,Hodges PW,Vicenzino B,Jones E,Chipchase LS

更新日期：2015-04-01 00:00:00

abstract：:The influence of anthropometry and body composition on running economy is unclear, with previous investigations involving small relatively homogeneous groups of runners and limited anthropometric/composition measurements. PURPOSE:To comprehensively investigate the relationships of anthropometry and body composition w...

journal_title：Medicine and science in sports and exercise

authors： Black MI,Allen SJ,Forrester SE,Folland JP

更新日期：2020-03-01 00:00:00

abstract：PURPOSE:To develop a protocol for isolating changes in aerodynamic and rolling resistances from field-based measures of power and velocity during level bicycling. METHODS:We assessed the effect of body position (hands on brake hoods vs drops) and tire pressure changes (414 vs 828 kPa) on aerodynamic and rolling resist...

journal_title：Medicine and science in sports and exercise

authors： Lim AC,Homestead EP,Edwards AG,Carver TC,Kram R,Byrnes WC

更新日期：2011-05-01 00:00:00

abstract：PURPOSE:To describe the level of usage of protective devices and equipment in a cohort of New Zealand rugby players. METHODS:Male and female players (N = 327) from a range of competitive grades were followed over the course of the season. Participants were interviewed weekly about their participation in rugby and use ...

journal_title：Medicine and science in sports and exercise

authors： Marshall SW,Waller AE,Loomis DP,Feehan M,Chalmers DJ,Bird YN,Quarrie KL

更新日期：2001-12-01 00:00:00

abstract：:Changes in body composition, fat distribution and lipoprotein lipids in response to weight loss elicited by a 10-month program of hypocaloric diet (HD) therapy alone or combined with aerobic exercise training (AEX+HD) were examined in sedentary obese older males. Body composition was assessed by hydrodensitometry and ...

journal_title：Medicine and science in sports and exercise

authors： Dengel DR,Hagberg JM,Coon PJ,Drinkwater DT,Goldberg AP

更新日期：1994-11-01 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:Cross-sectional studies suggest that training can increase muscle carnosine (MCarn), although longitudinal studies have failed to confirm this. A lack of control for dietary β-alanine intake or muscle fiber type shifting may have hampered their conclusions. The purpose of the present study was to investigate th...

journal_title：Medicine and science in sports and exercise

authors： DE Salles Painelli V,Nemezio KM,Pinto AJ,Franchi M,Andrade I,Riani LA,Saunders B,Sale C,Harris RC,Gualano B,Artioli GG

更新日期：2018-11-01 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the influence of different cycling cadences on metabolic and kinematic parameters during subsequent running. METHODS:Eight triathletes performed two incremental tests (running and cycling) to determine maximal oxygen uptake (VO2max) and ventilatory threshold (VT) va...

journal_title：Medicine and science in sports and exercise

authors： Vercruyssen F,Brisswalter J,Hausswirth C,Bernard T,Bernard O,Vallier JM

更新日期：2002-03-01 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：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:This pilot work was conducted to evaluate the effects of neuromuscular electrical stimulation resistance training (RT) of the paralyzed knee extensor muscle groups on skeletal muscle and intramuscular fat (IMF) cross-sectional areas, trunk visceral adipose tissue (VAT), carbohydrate, and lipid profiles in men w...

journal_title：Medicine and science in sports and exercise

authors： Gorgey AS,Mather KJ,Cupp HR,Gater DR

更新日期：2012-01-01 00:00:00

abstract：:It is the position of the American Dietetic Association, Dietitians of Canada, and the American College of Sports Medicine that physical activity, athletic performance, and recovery from exercise are enhanced by optimal nutrition. These organizations recommend appropriate selection of foods and fluids, timing of intak...

journal_title：Medicine and science in sports and exercise

authors： American Dietetic Association.,Dietitians of Canada.,American College of Sports Medicine.,Rodriguez NR,Di Marco NM,Langley S

更新日期：2009-03-01 00:00:00

abstract：PURPOSE:This study aimed to test whether environmental hypoxia could potentiate the effects of exercise training on glucose metabolism and insulin sensitivity. METHODS:Fourteen adolescents with obesity were assigned to 6 wk of exercise training either in normoxic or in hypoxic conditions (FiO2 15%). Adolescents traine...

journal_title：Medicine and science in sports and exercise

authors： DE Groote E,Britto FA,Bullock L,François M,DE Buck C,Nielens H,Deldicque L

更新日期：2018-11-01 00:00:00

abstract：PURPOSE:A statistical method called "magnitude-based inference" (MBI) has gained a following in the sports science literature, despite concerns voiced by statisticians. Its proponents have claimed that MBI exhibits superior type I and type II error rates compared with standard null hypothesis testing for most cases. I ...

journal_title：Medicine and science in sports and exercise

authors： Sainani KL

更新日期：2018-10-01 00:00:00

abstract：PURPOSE:The objectives of the present study were to examine gender differences and between-day variability of isometric hamstring muscle peak torque and perceived exertion. METHODS:Subjects included 20 healthy, college-aged male (N = 10) and female (N = 10) volunteers. Each subject completed five maximal voluntary iso...

journal_title：Medicine and science in sports and exercise

authors： Pincivero DM,Campy RM,Coelho AJ

更新日期：2003-10-01 00:00:00

abstract：PURPOSE:To examine serum creatine kinase (CK) activity after resistance exercise bouts with different rest intervals between sets and exercises in high responding (HR) and normal responding (NR) subjects. METHODS:During each resistance exercise bout, three sets with 10-repetition maximum (10RM) loads were completed fo...

journal_title：Medicine and science in sports and exercise

authors： Machado M,Willardson JM

更新日期：2010-07-01 00:00:00