Peripheral and Central Fatigue Development during All-Out Repeated Cycling Sprints.

abstract：:The utility of a biomechanical evaluation of an injury is shown for an incident involving bilateral tibial spiral fractures during skiing. With incorporation of directly measured binding release forces into a biomechanical model, estimates of torques transmitted to the skier's leg were determined. The analysis reveale...

journal_title：Medicine and science in sports and exercise

authors： Zernicke RF

更新日期：1981-01-01 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:This study investigated whether natural killer (NK) cells and CD8+ T cells expressing cutaneous lymphocyte antigen (CLA)-a homing molecule for endothelial cell leukocyte adhesion molecule 1, which enables transmigration to the skin-are selectively mobilized in response to acute exercise. METHODS:Nine healthy m...

journal_title：Medicine and science in sports and exercise

authors： Turner JE,Wadley AJ,Aldred S,Fisher JP,Bosch JA,Campbell JP

更新日期：2016-07-01 00:00:00

abstract：PURPOSE:It is unclear how muscle strength in tibial rotation and knee abduction change following anterior cruciate ligament (ACL) injury and reconstruction. Such strength changes are likely, considering the oblique orientation of the ACL and the constraint provided by the ACL at various tibial rotation and adduction po...

journal_title：Medicine and science in sports and exercise

authors： Zhang LQ,Nuber GW,Bowen MK,Koh JL,Butler JP

更新日期：2002-01-01 00:00:00

abstract：:Participation in sports in on the increase; this article addresses the intersection of sports and infectious diseases. Some infections occur with increased incidence in sports; others have an increased impact in that setting. Addressed in this article are issues of diagnosis, prevention, and management of many of thes...

journal_title：Medicine and science in sports and exercise

authors： Beck CK

更新日期：2000-07-01 00:00:00

abstract：PURPOSE:The purpose of this study was to test the hypothesis that stretch-activated ion channel (SAC) function is essential for the repeated bout effect (RBE) in skeletal muscle. Specifically, we investigated if daily injections of streptomycin (a known SAC blocker) would abrogate the muscle's adaptive resistance to th...

journal_title：Medicine and science in sports and exercise

authors： Butterfield TA,Best TM

更新日期：2009-02-01 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：INTRODUCTION:The quadriceps avoidance gait pattern may not be as common in ACL deficient (ACLd) gait as previously described. PURPOSE:The purpose of this study was to investigate the existence of the quadriceps avoidance pattern in ACL deficient patients and to further identify gait compensations that may exist in thi...

journal_title：Medicine and science in sports and exercise

authors： Torry MR,Decker MJ,Ellis HB,Shelburne KB,Sterett WI,Steadman JR

更新日期：2004-08-01 00:00:00

abstract：PURPOSE:The purpose of this study was to examine the ability of the SenseWear Pro2 Armband (SWA) to accurately assess energy expenditure in free-living overweight or obese children during a 2-wk period by comparison with energy expenditure measured using the doubly labeled water (DLW) method. A second aim was to examin...

journal_title：Medicine and science in sports and exercise

authors： Catharina Bäcklund,Gunnevi Sundelin,Christel Larsson

更新日期：2010-06-01 00:00:00

abstract：PURPOSE:In order to investigate overtraining-related adaptations in the autonomic nervous system, cardiac autonomic activity was examined in a junior cross-country skier who presented with reduced performance in competitions, early breathlessness during training sessions, and accumulated central fatigue. METHODS:Power...

journal_title：Medicine and science in sports and exercise

authors： Hedelin R,Wiklund U,Bjerle P,Henriksson-Larsén K

更新日期：2000-09-01 00:00:00

abstract：INTRODUCTION:Inhaled beta2-agonists are important therapeutic agents for the treatment of exercise-induced asthma in athletes but are restricted by international antidoping regulations. PURPOSE:To investigate whether 18 mug of inhaled formoterol affects endurance performance during running at high altitudes until exha...

journal_title：Medicine and science in sports and exercise

authors： Riiser A,Tjørhom A,Carlsen KH

更新日期：2006-12-01 00:00:00

abstract：PURPOSE:We investigated ethnic differences in areal bone mineral density (aBMD; g x cm(-2)) and its determinants at two levels of maturity in Asian- and Caucasian-Canadian girls. METHODS:Participants were 131 Asian (26 Tanner breast stage I (aTI) and 30 Tanner II (aTII)), and Caucasian (30 Tanner I (cTI) and 45 Tanner...

journal_title：Medicine and science in sports and exercise

authors： Mackelvie KJ,McKay HA,Khan KM,Crocker PR

更新日期：2001-11-01 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:Quadriceps strength deficits persist for years after anterior cruciate ligament (ACL) reconstruction, and patients with these deficits often shift torque demands away from the knee extensors to the hip during functional tasks. However, it is not clear how quadriceps strength deficits may affect hip strength. Th...

journal_title：Medicine and science in sports and exercise

authors： Bell DR,Trigsted SM,Post EG,Walden CE

更新日期：2016-10-01 00:00:00

abstract：PURPOSE:This study aimed to evaluate the relationship between race car cockpit temperature and thermal strain indicators among race car drivers. METHODS:Four male racing drivers' heart rate (HR), skin temperature (Tskin), and core temperature (Tcore) were measured continuously using the Equivital Life Monitor bio harn...

journal_title：Medicine and science in sports and exercise

authors： Barthel SC,Ferguson DP

更新日期：2021-02-01 00:00:00

abstract：UNLABELLED:Skeletal muscle injury is major concern in sport- and occupation-related fields. PURPOSE:We investigated the effects of increasing stretch-shortening contraction (SSC) repetition number in vivo and the resulting changes in functional performance and quantitative morphometry in rat skeletal muscle. METHODS:...

journal_title：Medicine and science in sports and exercise

authors： Baker BA,Mercer RR,Geronilla KB,Kashon ML,Miller GR,Cutlip RG

更新日期：2007-08-01 00:00:00

abstract：PURPOSE:The purpose of this study was to determine whether high frequency fatigue was present in the diaphragm after intense whole body endurance exercise. METHODS:We used bilateral phrenic nerve stimulation (BPNS) before and during recovery from whole body exercise to detect fatigue in the diaphragm. To detect high f...

journal_title：Medicine and science in sports and exercise

authors： Babcock MA,Pegelow DF,Taha BH,Dempsey JA

更新日期：1998-04-01 00:00:00

abstract：PURPOSE:To compare the physiological and performance adaptations between periodized and nonperiodized resistance training in women collegiate tennis athletes. METHODS:Thirty women (19 +/- 1 yr) were assigned to either a periodized resistance training group (P), nonperiodized training group (NV), or a control group (C)...

journal_title：Medicine and science in sports and exercise

authors： Kraemer WJ,Hakkinen K,Triplett-Mcbride NT,Fry AC,Koziris LP,Ratamess NA,Bauer JE,Volek JS,McConnell T,Newton RU,Gordon SE,Cummings D,Hauth J,Pullo F,Lynch JM,Fleck SJ,Mazzetti SA,Knuttgen HG

更新日期：2003-01-01 00:00:00

abstract：PURPOSE:Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics is frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee...

journal_title：Medicine and science in sports and exercise

authors： Hart HF,Crossley KM,Collins NJ,Ackland DC

更新日期：2017-06-01 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:To examine whether components of body composition (size, fat mass, and fat-free mass) were related to physical activity. METHODS:A random sample of 60 eligible sixth grade girls at each of 36 schools (six schools per region and six regions in total sample); complete measurements on 1,553 girls. Physical activi...

journal_title：Medicine and science in sports and exercise

authors： Lohman TG,Ring K,Schmitz KH,Treuth MS,Loftin M,Yang S,Sothern M,Going S

更新日期：2006-06-01 00:00:00

abstract：PURPOSE:This study established the published prediction equations for the energy expenditure of walking and running compared with the measured values. To make this comparison we first determined whether differences exist in energy expenditure for 1600 m of walking versus running, and whether energy expenditure differen...

journal_title：Medicine and science in sports and exercise

authors： Hall C,Figueroa A,Fernhall B,Kanaley JA

更新日期：2004-12-01 00:00:00

abstract：:Oxidation-reduction (redox) based regulation of gene expression appears to be a fundamental regulatory mechanism in cell biology. This basic information has been exploited to develop novel strategies in clinical therapeutics. In contrast to the conventional idea that reactive species mostly serve as a trigger for oxid...

journal_title：Medicine and science in sports and exercise

authors： Sen CK

更新日期：2001-03-01 00:00:00

abstract：INTRODUCTION:Acute stress can increase fatigability and decrease steadiness of sustained low-force contractions that are required for functional tasks in upper limb muscles. Whether motor performance is more impaired in people with a chronic stress disorder is not known. PURPOSE:This study compared the fatigability an...

journal_title：Medicine and science in sports and exercise

authors： Keller-Ross ML,Schlinder-Delap B,Doyel R,Larson G,Hunter SK

更新日期：2014-07-01 00:00:00

abstract：PURPOSE:In this study, we examined the effects of body position (from deep to high position) in slide boarding by well-trained cross-country skiers. The main hypothesis was that a deeper, more "crouched" position would lead to reduced air resistance and enhanced power production during explosive extension of the lower ...

journal_title：Medicine and science in sports and exercise

authors： Leirdal S,Saetran L,Roeleveld K,Vereijken B,Bråten S,Løset S,Holtermann A,Ettema G

更新日期：2006-08-01 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:This study determined the dose-response effects of inhaled salbutamol (SAL) on time-trial performance and urine concentrations of SAL (cSAL). METHODS:Nonasthmatic, trained male cyclists and triathletes (N = 37) were studied. Day 1 consisted of screening for airway hyperresponsiveness, using a eucapnic voluntar...

journal_title：Medicine and science in sports and exercise

authors： Sporer BC,Sheel AW,McKenzie DC

更新日期：2008-01-01 00:00:00

abstract：PURPOSE:We asked whether submaximal exercise with chest wall restriction (CWR), as a model of restrictive pulmonary disease, would result in fatigue of the diaphragm in healthy humans. METHODS:To address this question, we used cervical magnetic stimulation of the phrenic nerves along with measures of transdiaphragmati...

journal_title：Medicine and science in sports and exercise

authors： Tomczak SE,Guenette JA,Reid WD,McKenzie DC,Sheel AW

更新日期：2011-03-01 00:00:00

abstract：PURPOSE:High internal stress is considered to be a possible cause of heel-pad problems. External biomechanical measurements are used to attempt to understand the causes of heel pain. However, internal stress cannot be measured experimentally. Therefore, the purpose of this study was to quantify the relationship between...

journal_title：Medicine and science in sports and exercise

authors： Spears IR,Miller-Young JE,Waters M,Rome K

更新日期：2005-06-01 00:00:00

abstract：:Anthropometric and demographic characteristics are important determinants of exercise performance in healthy subjects, but their influence has not yet been studied in severe chronic heart failure, although peak oxygen uptake is frequently assessed in such patients for prognostic purposes. The aim of the present analys...

journal_title：Medicine and science in sports and exercise

authors： Pardaens K,Vanhaecke J,Fagard RH

更新日期：1997-06-01 00:00:00