No Muscle Is an Island: Integrative Perspectives on Muscle Fatigue.

abstract：PURPOSE:The purpose of this investigation was to examine the effects of differing amounts of beta-hydroxy-beta-methylbutyrate (HMB), 0, 36, and 76 mg x kg(-1) x d(-1), on hematology, hepatic and renal function during 8 wk of resistance training. METHODS:Thirty-seven, untrained collegiate males and were randomly assign...

journal_title：Medicine and science in sports and exercise

authors： Gallagher PM,Carrithers JA,Godard MP,Schulze KE,Trappe SW

更新日期：2000-12-01 00:00:00

abstract：PURPOSE:The present study examined the effect of extreme old age on the plasticity of the rat plantaris muscle in response to an increase in mechanical load. METHODS:Male Fischer 344 rats, aged 7 months (adult) and 25 months (old) underwent bilateral surgical ablation of the gastrocnemius muscle to functionally overlo...

journal_title：Medicine and science in sports and exercise

authors： Linderman JK,Blough ER

更新日期：2002-07-01 00:00:00

abstract：INTRODUCTION:Slow gait predicts many adverse clinical outcomes in old adults, but the mechanisms of how power training can minimize the age-related loss of gait velocity is unclear. We examined the effects of 10 wk of lower extremity power training and detraining on healthy old adults' lower extremity muscle power and ...

journal_title：Medicine and science in sports and exercise

authors： Beijersbergen CM,Granacher U,Gäbler M,Devita P,Hortobágyi T

更新日期：2017-01-01 00:00:00

abstract：PURPOSE:Considering the different loading and training characteristics of the sports practiced during growth, it is important to specify and categorize the bone and soft tissue adaptations in adolescent athletes. This study aimed to categorize 10 different loading sports and a nonsport group and identify the difference...

journal_title：Medicine and science in sports and exercise

authors： Agostinete RR,Fernandes RA,Narciso PH,Maillane-Vanegas S,Werneck AO,Vlachopoulos D

更新日期：2020-12-01 00:00:00

abstract：PURPOSE:This study aimed to analyze the influence of foot strike pattern on running economy and biomechanical characteristics in subelite runners with a similar performance level. METHODS:Twenty subelite long-distance runners participated and were divided into two groups according to their foot strike pattern: rearfoo...

journal_title：Medicine and science in sports and exercise

authors： Ogueta-Alday A,Rodríguez-Marroyo JA,García-López J

更新日期：2014-03-01 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：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：:Estimates of muscular efficiency in competitive and recreational cyclists at similar work intensities and cycling frequencies were examined. Twelve healthy college-age male nonsmoker volunteers were grouped as either competitive (CC; N = 6) or recreational (RC; N = 6) cyclists based upon previous cycling experience. S...

journal_title：Medicine and science in sports and exercise

authors： Nickleberry BL Jr,Brooks GA

更新日期：1996-11-01 00:00:00

abstract：PURPOSE:To determine the prevalence of full-thickness focal chondral defects in the athlete's knee. METHODS:We conducted a systematic review of multiple databases, evaluating studies of the prevalence of articular cartilage defects in athletes. Because of the heterogeneity of data, a meta-analysis could not be perform...

journal_title：Medicine and science in sports and exercise

authors： Flanigan DC,Harris JD,Trinh TQ,Siston RA,Brophy RH

更新日期：2010-10-01 00:00:00

abstract：PURPOSE:The purpose of this study is to compare the time-frequency characteristic, using nonlinearly scaled wavelets, of the EMG signal as well as the three-dimensional (3D) knee kinematics of female and male elite soccer players performing an unanticipated cutting maneuver. METHODS:Fifteen female and 15 male elite so...

journal_title：Medicine and science in sports and exercise

authors： Beaulieu ML,Lamontagne M,Xu L

更新日期：2008-10-01 00:00:00

abstract：:This study examined the association between aerobic, caloric exercise expenditure and life status (living vs deceased) as well as the prevalence rates of hypertension (HBP) and cardiovascular disease (CVD) in former male athletes (ATH) and non-athletes (N-ATH). The initial survey for this study was done in 1952. Follo...

journal_title：Medicine and science in sports and exercise

authors： Quinn TJ,Sprague HA,Van Huss WD,Olson HW

更新日期：1990-12-01 00:00:00

abstract：OBJECTIVE:To examine the effect of an increase in roller ski rolling resistance on the physiological and upper body demands of roller skiing with the V2-alternate technique. METHODS:Nine highly skilled cross-country skiers roller skied at three paced speeds on a flat oval loop using roller skis with high (HiR) and low...

journal_title：Medicine and science in sports and exercise

authors： Millet GY,Hoffman MD,Candau RB,Buckwalter JB,Clifford PS

更新日期：1998-05-01 00:00:00

abstract：:The purpose of this project was to determine whether mild heat stress induced by wearing a wet suit while swimming in relatively warm water (25.4 +/- 0.1 degrees C) increases the risk of heat injury during the cycling and running stages of an International distance triathlon in a hot and humid environment (32 degrees ...

journal_title：Medicine and science in sports and exercise

authors： Kerr CG,Trappe TA,Starling RD,Trappe SW

更新日期：1998-01-01 00:00:00

abstract：PURPOSE:Previous research identified decreased overall and cardiovascular mortality for National Football League (NFL) players from the 1959-1988 era. The present study explored the mortality risk among recent NFL players who played in an era of heavier linemen and nearly year-round physical conditioning. METHODS:This...

journal_title：Medicine and science in sports and exercise

authors： Lincoln AE,Vogel RA,Allen TW,Dunn RE,Alexander K,Kaufman ND,Tucker AM

更新日期：2018-03-01 00:00:00

abstract：UNLABELLED:Two recently identified glucose transporters, GLUT8 and GLUT12, are expressed in human skeletal muscle and may be involved in insulin-mediated sugar transport. PURPOSE:The purpose of this study was to measure GLUT8 and GLUT12 mRNA levels in endurance-trained versus sedentary individuals in an effort to dete...

journal_title：Medicine and science in sports and exercise

authors： Seki Y,Berggren JR,Houmard JA,Charron MJ

更新日期：2006-06-01 00:00:00

abstract：:The purpose of this study was to determine whether efferent sympathetic nerve activity is different to resting skeletal muscles from the exercising and nonexercising limb. MSNA was measured by microneurography in both legs (peroneal nerve) in six subjects during 2 min of unilateral isometric knee extension (IKE; 10-30...

journal_title：Medicine and science in sports and exercise

authors： Ray CA,Mark AL

更新日期：1995-02-01 00:00:00

abstract：PURPOSE:A combination of endurance and strength training is generally used to seek further health benefits or enhanced physical performance in older adults compared with either of the training modes alone. The mean change within a training group, however, may conceal a wide range of individual differences in the respon...

journal_title：Medicine and science in sports and exercise

authors： Karavirta L,Häkkinen K,Kauhanen A,Arija-Blázquez A,Sillanpää E,Rinkinen N,Häkkinen A

更新日期：2011-03-01 00:00:00

abstract：:To test a hypothesis that the differences in running performances between men and women narrow with increasing race distance, recent best running speeds (m.s-1) of 28 female ultramarathon runners over racing distances from 5 to 90 km were compared with those of male runners matched for 56 km race time, age and trainin...

journal_title：Medicine and science in sports and exercise

authors： Bam J,Noakes TD,Juritz J,Dennis SC

更新日期：1997-02-01 00:00:00

abstract：PURPOSE:The prevalences of diabetes, hypertension, and high cholesterol all decrease with increased levels of physical activity and cardiorespiratory fitness. Whether these reductions extend beyond contemporary guideline activity levels and whether fitness affects medication use independent of activity, remains unclear...

journal_title：Medicine and science in sports and exercise

authors： Williams PT,Franklin B

更新日期：2007-11-01 00:00:00

abstract：:MRI is an excellent noninvasive method of diagnosing difficult shoulder problems. Although usually not needed for classic primary impingement syndrome or clinically obvious rotator cuff tears, MRI may be helpful in diagnosing secondary causes of impingement or in some cases involving partial rotator cuff tears. Some s...

journal_title：Medicine and science in sports and exercise

authors： Ertl JP,Kovacs G,Burger RS

更新日期：1998-04-01 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:Loud sounds can decrease reaction time (RT) and increase force generated during voluntary contractions. Accordingly, we hypothesized that the loud starter's pistol at the Olympic Games allows runners closer to the starter to react sooner and stronger than runners farther away. METHODS:RT for the 100/110 m...

journal_title：Medicine and science in sports and exercise

authors： Brown AM,Kenwell ZR,Maraj BK,Collins DF

更新日期：2008-06-01 00:00:00

abstract：PURPOSE:To test the hypothesis that leg blood flow and leg O2 extraction during peak exercise are reduced with age in healthy normally active women. METHODS:Thirteen younger (20-27 yr) and 12 older (60-71 yr) nonendurance trained women performed graded upright leg cycling to maximum exertion (VO2peak), while leg blood...

journal_title：Medicine and science in sports and exercise

authors： Proctor DN,Koch DW,Newcomer SC,Le KU,Smithmyer SL,Leuenberger UA

更新日期：2004-04-01 00:00:00

abstract：:The purpose of this study was to identify anatomical variables associated with plantar-fasciitis sufferers. Selected anatomical variables which were chosen for measurement were leg length, pronation of the subtalar joint, plantar and dorsiflexion ability, and arch height of the foot, as well as the variables height, w...

journal_title：Medicine and science in sports and exercise

authors： Warren BL

更新日期：1984-01-01 00:00:00

abstract：PURPOSE:This study aimed to determine whether physical activity patterns are associated with sleep later at night and if nighttime sleep is associated with physical activity patterns the next day among adult women. METHODS:Women (N = 353) living throughout the United States wore a wrist and a hip accelerometer for 7 d...

journal_title：Medicine and science in sports and exercise

authors： Mitchell JA,Godbole S,Moran K,Murray K,James P,Laden F,Hipp JA,Kerr J,Glanz K

更新日期：2016-10-01 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：: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：:Older adults have low rates meeting the physical activity (PA) guidelines and high sedentary time. Low PA and excessive sedentary time have been linked to adverse health outcomes. Less is known about whether exercise training influences sedentary time and PA in various intensities. PURPOSE:This study aimed to examine...

journal_title：Medicine and science in sports and exercise

authors： Wang X,Breneman CB,Sparks JR,Blair SN

更新日期：2020-12-01 00:00:00

abstract：PURPOSE:This study aimed to test whether incident kidney cancer risk is associated with exercise energy expenditure (i.e., metabolic equivalents, 1 MET) when calculated from distance walked or run. METHODS:Hazard ratios (HR) and 95% confidence intervals (95% CI) from Cox proportional hazard analyses of self-reported p...

journal_title：Medicine and science in sports and exercise

authors： Williams PT

更新日期：2014-02-01 00:00:00

abstract：PURPOSE:A 20-d 6 degrees head-down tilt bed rest project was conducted to evaluate the effect of dynamic leg press and plantar flexion resistance training on muscle size and function in human plantar flexors (PF) throughout the prolonged bed rest. METHODS:Twelve healthy men participated in this study and were divided ...

journal_title：Medicine and science in sports and exercise

authors： Akima H,Ushiyama J,Kubo J,Tonosaki S,Itoh M,Kawakami Y,Fukuoka H,Kanehisa H,Fukunaga T

更新日期：2003-04-01 00:00:00