Physiological determinants of Qmax in contracting canine skeletal muscle in situ.

abstract：:The effects of endurance training on tissue antioxidant and oxidative enzyme activities were determined in heart, liver, and five skeletal muscles of female rats. Rats were fed either normal (+E) or vitamin E free (-E) diets for 16 wk. For the final 8 wk, subgroups of +E and -E diet animals were trained by treadmill r...

journal_title：Medicine and science in sports and exercise

authors： Tiidus PM,Houston ME

更新日期：1994-03-01 00:00:00

abstract：PURPOSE:Most studies of physical fitness change have been relatively small, not population-based, and lacking in women and nonwhites. The purpose of this analysis was to evaluate the 7-yr change in physical fitness in a biracial (black and white) population of young men and women. METHODS:We evaluated change in exerci...

journal_title：Medicine and science in sports and exercise

authors： Sidney S,Sternfeld B,Haskell WL,Quesenberry CP Jr,Crow RS,Thomas RJ

更新日期：1998-03-01 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：INTRODUCTION:This study examined the influence of a supplement matrix on the excretion pattern of nandrolone metabolites in response to ingestion of a trace amount of 19-norandrostenedione. METHODS:Ten male and nine female volunteers (mean ± SD: age = 26 ± 3 yr, height = 1.71 ± 0.09 m, body mass = 70.9 ± 13.2 kg) were...

journal_title：Medicine and science in sports and exercise

authors： Watson P,Houghton E,Grace PB,Judkins C,Dunster PM,Maughan RJ

更新日期：2010-04-01 00:00:00

abstract：:During the past three to four decades, a significant amount of data was collected to reinforce the notion that mitochondrial function is irrevocably linked to mitochondrial structure. Indeed, data from numerous studies have revealed several salient points of mitochondrial biology that include the following: 1). mitoch...

journal_title：Medicine and science in sports and exercise

authors： Turcotte LP

更新日期：2003-01-01 00:00:00

abstract：:The purpose of the study was to examine the effects of surgical and nonsurgical treatment of previously immobilized ankle fractures on voluntary and evoked contractile properties before and following fatigue. Twelve control and 12 previously immobilized (4-14 wk postfracture) internally fixated and nonfixated ankles w...

journal_title：Medicine and science in sports and exercise

authors： Behm DG,St-Pierre DM

更新日期：1997-09-01 00:00:00

abstract：:Regression analysis is often used to demonstrate associations among variables believed to be biologically related. Failure to demonstrate a "significant" relationship may be due to two factors: 1) the variables are truly unrelated, or 2) a relationship exists but goes undetected due to inadequate statistical power. In...

journal_title：Medicine and science in sports and exercise

authors： Sharp DS,Gahlinger PM

更新日期：1988-12-01 00:00:00

abstract：PURPOSE:To examine relationships between selected sociodemographic, health-related and environmental factors and levels of physical activity in older adults across three age groups. METHODS:Seven hundred sixty-four older adults (mean age = 77.4 +/- 8.6 yr) from a midsize Canadian city completed a self-administered que...

journal_title：Medicine and science in sports and exercise

authors： Chad KE,Reeder BA,Harrison EL,Ashworth NL,Sheppard SM,Schultz SL,Bruner BG,Fisher KL,Lawson JA

更新日期：2005-10-01 00:00:00

abstract：:The knee joints of 81 veteran soccer players between ages 40 and 74 were examined. An analysis of and relationships between soccer practice at a top level, osteoarthritis, meniscectomy, and leg axes were evaluated. One-hundred and sixty-two knees were assessed through clinical examination and X-ray examination using a...

journal_title：Medicine and science in sports and exercise

authors： Chantraine A

更新日期：1985-08-01 00:00:00

abstract：PURPOSE:Overtraining is primarily related to sustained high load training, often coupled with other stressors. Studies in animal models have suggested that unremittingly heavy training (monotonous training) may increase the likelihood of developing overtraining syndrome. The purpose of this study was to extend our prel...

journal_title：Medicine and science in sports and exercise

authors： Foster C

更新日期：1998-07-01 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:To compare the effects of different patterns of regular brisk walking on fitness, risk factors for cardiovascular disease, and psychological well-being in previously sedentary adults. METHODS:Twenty-one subjects (14 women), aged 44.5 +/- 6.1 yr (mean +/- SD) were randomly assigned to two different, 6-wk progra...

journal_title：Medicine and science in sports and exercise

authors： Murphy M,Nevill A,Neville C,Biddle S,Hardman A

更新日期：2002-09-01 00:00:00

abstract：:The AMP-activated protein kinase (AMPK) has been referred to as an "energy sensor" because it binds to and is regulated by both AMP and ATP. The binding of AMP to AMPK allows it to be phosphorylated by upstream kinases, resulting in its activation. In contrast, the binding of ATP prevents its activation. AMPK regulate...

journal_title：Medicine and science in sports and exercise

authors： Kimball SR

更新日期：2006-11-01 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:The purpose of this study was to evaluate energy balance and body composition in 42 gymnasts (mean age = 15.5 yr) and 20 runners (mean age = 26.6 yr), all of whom were on national teams or were nationally ranked. METHODS:Athletes were assessed for body composition using DEXA and skinfolds, and energy balance w...

journal_title：Medicine and science in sports and exercise

authors： Deutz RC,Benardot D,Martin DE,Cody MM

更新日期：2000-03-01 00:00:00

abstract：INTRODUCTION:This study tested the hypothesis that females rely on thermal behavior to a greater extent during and after exercise, relative to males. METHODS:In a 24°C ± 1°C; (45% ± 10% RH) environment, 10 males (M) and 10 females (F) (22 ± 2 yr) cycled for 60 min (metabolic heat production: M, 117 ± 18 W·m; F, 129 ± ...

journal_title：Medicine and science in sports and exercise

authors： Vargas NT,Chapman CL,Sackett JR,Johnson BD,Gathercole R,Schlader ZJ

更新日期：2019-01-01 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:The purpose of this study was twofold: (a) to measure the effects of temporal parameters on both ball velocity and upper limb joint kinetics to identify pathomechanical factors during the tennis serve and (b) to validate these pathomechanical factors by comparing injured and noninjured players. METHODS:The ser...

journal_title：Medicine and science in sports and exercise

authors： Martin C,Kulpa R,Ropars M,Delamarche P,Bideau B

更新日期：2013-11-01 00:00:00

abstract：:The effect of physical exercise and vitamin C on iron absorption after oral iron administration was investigated. Eight healthy male subjects without iron deficiency were studied after administration of 100 mg ferric sodium citrate complex, 100 mg ferric sodium citrate complex with 200 mg ascorbic acid, and without ir...

journal_title：Medicine and science in sports and exercise

authors： Schmid A,Jakob E,Berg A,Russmann T,König D,Irmer M,Keul J

更新日期：1996-12-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare the modified Broström and Evans procedures for simulated lateral ankle instability in cadaveric lower extremities. METHODS:Six normal cadaveric ankles were loaded with inversion and internal rotation stress through the range of ankle flexion, and three-dimensional motio...

journal_title：Medicine and science in sports and exercise

authors： Fujii T,Kitaoka HB,Watanabe K,Luo ZP,An KN

更新日期：2006-06-01 00:00:00

abstract：PURPOSE:Increasing step rate has been shown to elicit changes in joint kinematics and kinetics during running, and it has been suggested as a possible rehabilitation strategy for runners with patellofemoral pain. The purpose of this study was to determine how altering step rate affects internal muscle forces and patell...

journal_title：Medicine and science in sports and exercise

authors： Lenhart RL,Thelen DG,Wille CM,Chumanov ES,Heiderscheit BC

更新日期：2014-03-01 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：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: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：UNLABELLED:Closed rupture of the flexor tendon sheath has been known to occur in the elite rock climbing population. However, only one study has investigated the prevalence of this entity. PURPOSE:To examine an elite climbing group in this country for the prevalence of pulley rupture and report on other commonly occur...

journal_title：Medicine and science in sports and exercise

authors： Rohrbough JT,Mudge MK,Schilling RC

更新日期：2000-08-01 00:00:00

abstract：:During exercise, especially endurance exercise in the heat, vital body fluids and essential ions are lost in sweat, and the body may deplete its glycogen stores. Unless essential body fluids are restored, these conditions can produce hypovolemia, hypoglycemia, hyponatremia, hyperthermia, and dehydration. Performance m...

journal_title：Medicine and science in sports and exercise

authors： Gisolfi CV,Duchman SM

更新日期：1992-06-01 00:00:00

abstract：PURPOSE:According to the force-velocity relationship of human skeletal muscle, the maximal load one can lift is limited by the concentric movement phase, and the eccentric phase is always underloaded. In the present study, we hypothesized that acute exercise training using an eccentric overload compared with standard l...

journal_title：Medicine and science in sports and exercise

authors： Hortobágyi T,Devita P,Money J,Barrier J

更新日期：2001-07-01 00:00:00

abstract：:It has been widely claimed that exercise is beneficial to dysmenorrhea, yet solid evidence is lacking. Studies investigating this relationship have been reviewed for this paper. Most showed decreased prevalence and/or improved symptomatology with exercise. However, controlled longitudinal studies involving women with ...

journal_title：Medicine and science in sports and exercise

authors： Golomb LM,Solidum AA,Warren MP

更新日期：1998-06-01 00:00:00

abstract：PURPOSE:Obesity in adolescence increases the risk for early adult cardiovascular disease. We recently showed that 6 months of diet, exercise, and metformin resulted in reductions in adiposity and that diet/exercise alone reduced proinflammatory factors and intrahepatic fat in pubertal children with uncomplicated obesit...

journal_title：Medicine and science in sports and exercise

authors： Rynders C,Weltman A,Delgiorno C,Balagopal P,Damaso L,Killen K,Mauras N

更新日期：2012-05-01 00:00:00

abstract：PURPOSE:Exercise training restores innate immune system cell function in post-myocardial infarction (post-MI) rats. However, studies of the involvement of lymphocyte (Ly) in the setting of the congestive heart failure (CHF) are few. To address this issue, we investigated the function of Ly obtained from cervical lymph ...

journal_title：Medicine and science in sports and exercise

authors： Batista ML Jr,Santos RV,Lopes RD,Lopes AC,Costa Rosa LF,Seelaender MC

更新日期：2008-03-01 00:00:00