High frequency diaphragmatic fatigue detected with paired stimuli in humans.

abstract：PURPOSE:To examine the influence of two patellofemoral braces on pain response, patellar alignment, and patellofemoral joint contact area in persons with patellofemoral pain. METHODS:Fifteen women between the ages of 18 and 45 yr with a diagnosis of patellofemoral pain participated. After the assessment of pain respon...

journal_title：Medicine and science in sports and exercise

authors： Powers CM,Ward SR,Chan LD,Chen YJ,Terk MR

更新日期：2004-07-01 00:00:00

abstract：:Although no conclusive evidence exists to suggest that vitamin supplementation improves athletic performance in nutritionally adequate individuals, exercise may increase requirements for certain vitamins in individuals with marginal vitamin stores. This review summarizes results from recent research studies of vitamin...

journal_title：Medicine and science in sports and exercise

authors： Belko AZ

更新日期：1987-10-01 00:00:00

abstract：:In the present studies, the Leuven Tennis Performance Test (LTPT), a newly developed test procedure to measure stroke performance in match-like conditions in elite tennis players, was evaluated as to its value for research purposes. The LTPT is enacted on a regular tennis court. It consists of first and second service...

journal_title：Medicine and science in sports and exercise

authors： Vergauwen L,Spaepen AJ,Lefevre J,Hespel P

更新日期：1998-08-01 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：INTRODUCTION/PURPOSE:This study investigated whether the progressive rise in heart rate (HR) and fall in stroke volume (SV) during prolonged, constant-rate, moderate-intensity exercise (cardiovascular drift, CVdrift) in a hot environment is associated with a reduction in VO(2max). METHODS:CVdrift was measured in nine ...

journal_title：Medicine and science in sports and exercise

authors： Wingo JE,Lafrenz AJ,Ganio MS,Edwards GL,Cureton KJ

更新日期：2005-02-01 00:00:00

abstract：:A primary goal of studies of successful aging is to identify the modifiable factors related to the plasticity of higher physical function; however, little is known about the relationship between habitual physical activity (especially that of lower- to moderate-intensity) and the maintenance of day-to-day functioning i...

journal_title：Medicine and science in sports and exercise

authors： DiPietro L

更新日期：1996-05-01 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：INTRODUCTION:Low lean mass (LM) is a risk factor for chronic disease, a major cause of disability and diminished quality of life, and is a heritable trait. However, relatively few specific genetic factors have been identified as potentially influencing this trait. METHODS:In this study, we selected 1493 single-nucleot...

journal_title：Medicine and science in sports and exercise

authors： Klimentidis YC,Bea JW,Thompson P,Klimecki WT,Hu C,Wu G,Nicholas JS,Ryckman KK,Chen Z

更新日期：2016-07-01 00:00:00

abstract：PURPOSE:This study was designed to determine changes in metabolic and cardiovascular risk factors following normobaric hypoxic exercise training in healthy men. METHODS:Following a randomized baseline maximal exercise test in hypoxia and/or normoxia, 34 physically active subjects were randomly assigned to either a nor...

journal_title：Medicine and science in sports and exercise

authors： Bailey DM,Davies B,Baker J

更新日期：2000-06-01 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：INTRODUCTION:Chronic unimanual motor practice increases the motor output not only in the trained but also in the nonexercised homologous muscle in the opposite limb. We examined the hypothesis that adaptations in motor cortical excitability of the nontrained primary motor cortex (iM1) and in interhemispheric inhibition...

journal_title：Medicine and science in sports and exercise

authors： Hortobágyi T,Richardson SP,Lomarev M,Shamim E,Meunier S,Russman H,Dang N,Hallett M

更新日期：2011-07-01 00:00:00

abstract：INTRODUCTION:Muscle force production is usually impaired in people with spinal cord injury (SCI). The use of high-intensity neuromuscular electrical stimulation (NMES) strength training can help promote metabolically active lean muscle mass and, thus, increase muscle mass and improve physical health and quality of life...

journal_title：Medicine and science in sports and exercise

authors： Bochkezanian V,Newton RU,Trajano GS,Blazevich AJ

更新日期：2018-09-01 00:00:00

abstract：INTRODUCTION:Recent studies suggested that muscle mass and muscle strength may independently or synergistically affect aging-related health outcomes in older adults; however, prospective data on mortality in the general population are sparse. METHODS:We aimed to prospectively examine individual and joint associations ...

journal_title：Medicine and science in sports and exercise

authors： Li R,Xia J,Zhang XI,Gathirua-Mwangi WG,Guo J,Li Y,McKenzie S,Song Y

更新日期：2018-03-01 00:00:00

abstract：:Acute bouts of aerobic exercise have been consistently associated with significant reductions in anxiety, but explanations for this effect remain elusive. The cerebral lateralization hypothesis predicts that anxiety reductions would be caused by a postexercise decrease in anterior right, relative to left, hemisphere a...

journal_title：Medicine and science in sports and exercise

authors： Petruzzello SJ,Landers DM

更新日期：1994-08-01 00:00:00

abstract：PURPOSE:To examine longitudinal change in cardiorespiratory fitness and odds of incident sleep problems. METHODS:A cohort of 7368 men and 1155 women, age 20-85 yr, was recruited from the Aerobics Center Longitudinal Study. The cohort did not complain of sleep problems, depression, or anxiety at their first clinic visi...

journal_title：Medicine and science in sports and exercise

authors： Dishman RK,Sui X,Church TS,Kline CE,Youngstedt SD,Blair SN

更新日期：2015-05-01 00:00:00

abstract：:Cardiovascular responses were obtained during cycling with graded levels of lower-body positive pressure (LBPP) applied to the exercising limbs. Seven men performed four incremental work rate (25 W.min-1) exercise (IWREx) tests to their limit of tolerance while exposed to 0, 15, 30, or 45 Torr LBPP. They also performe...

journal_title：Medicine and science in sports and exercise

authors： Williamson JW,Crandall CG,Potts JT,Raven PB

更新日期：1994-06-01 00:00:00

abstract：:In 1983 a representative sample of Danish adolescents 16-19 yr of age were selected to participate in a study to determine risk profile for coronary heart disease. Eight years later (1991), we performed a follow-up study of the same participants 23-27 yr of age to compare risk factors. In the young adults power was ge...

journal_title：Medicine and science in sports and exercise

authors： Andersen LB,Haraldsdóttir J

更新日期：1994-08-01 00:00:00

abstract：PURPOSE:The objective of this study is to determine the effect of body mass index (BMI) on level of agreement between six previously established prediction equations for three commonly used accelerometers to predict summary measures of energy expenditure (EE) in youth. METHODS:One hundred and thirty-one youth between ...

journal_title：Medicine and science in sports and exercise

authors： Warolin J,Carrico AR,Whitaker LE,Wang L,Chen KY,Acra S,Buchowski MS

更新日期：2012-12-01 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：BACKGROUND:For optimal health benefits, moderate- to vigorous-intensity physical activity (MVPA) is recommended in sustained bouts lasting ≥10 min. However, short spurts of MVPA lasting <10 min are more common in everyday life. It is unclear whether short spurts of MVPA further protect against the development of hypert...

journal_title：Medicine and science in sports and exercise

authors： White DK,Gabriel KP,Kim Y,Lewis CE,Sternfeld B

更新日期：2015-11-01 00:00:00

abstract：:To test whether strenuous exercise with and without caloric restriction alters LH secretion, and whether these changes are apparent in the immediate post-exercise period, LH pulse parameters were studied in four moderately trained eumenorrheic women over three successive menstrual cycles. Blood samples were obtained 5...

journal_title：Medicine and science in sports and exercise

authors： Williams NI,Young JC,McArthur JW,Bullen B,Skrinar GS,Turnbull B

更新日期：1995-10-01 00:00:00

abstract：PURPOSE:This study aimed to examine the acute effect of caffeine on exercise capacity, exercise-related fatigue, and functional performance in prostate cancer survivors. METHODS:In this randomized, placebo-controlled, double-blind crossover study, 30 prostate cancer survivors (age, 70.3 ± 7.7 yr; body mass, 80.5 ± 13....

journal_title：Medicine and science in sports and exercise

authors： Cornish RS,Bolam KA,Skinner TL

更新日期：2015-03-01 00:00:00

abstract：:The present study was designed to assess the effects of acute exercise and short-term intensive training on catechol-O-methyltransferase (COMT) activity. COMT inactivates catecholamines and converts primary catecholestrogens (CE) into their O-methylated form yielding the 2- (2-MeOE) and 4-methoxyestrogens (4-MeOE). Bl...

journal_title：Medicine and science in sports and exercise

authors： De Crée C,Van Kranenburg G,Geurten P,Fujimura Y,Keizer HA

更新日期：1997-12-01 00:00:00

abstract：:Compared with level walking or running, progressive downhill walking or running requires a decreasing energy cost to some minimum where the cost again increases with further decrements in grade. Margaria estimated this minimum occurs at a -9% grade. In this study an attempt was made to more precisely track the energy ...

journal_title：Medicine and science in sports and exercise

authors： Wanta DM,Nagle FJ,Webb P

更新日期：1993-01-01 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the vibrotactile detection thresholds of the plantar cutaneous afferents in subjects with chronic ankle instability compared with healthy control subjects. METHODS:Eight adults with chronic ankle instability and eight adults with no ankle sprain history participated...

journal_title：Medicine and science in sports and exercise

authors： Hoch MC,McKeon PO,Andreatta RD

更新日期：2012-04-01 00:00:00

abstract：PURPOSE:The purpose of the present study was to examine the effect of muscle activity level on serum creatine kinase (CK) activity after high-force eccentric exercise of the elbow flexors. METHODS:Twenty-six male volunteers were randomly assigned to one of three groups for a 4-d treatment period after exercise: immobi...

journal_title：Medicine and science in sports and exercise

authors： Sayers SP,Clarkson PM,Lee J

更新日期：2000-09-01 00:00:00

abstract：PURPOSE:The chronic exposure at high altitude (HA) represents an ideal model for evaluating the in vivo effects of hypobaric hypoxia. Taking advantage of the EV-K2-CNR Pyramid, this study was designed to evaluate whether acute and chronic hypoxia differently modulates the in vivo immune responses. METHODS:The study in...

journal_title：Medicine and science in sports and exercise

authors： Facco M,Zilli C,Siviero M,Ermolao A,Travain G,Baesso I,Bonamico S,Cabrelle A,Zaccaria M,Agostini C

更新日期：2005-05-01 00:00:00

abstract：INTRODUCTION:Physical endurance can be limited by muscle glycogen stores, in that glycogen depletion markedly reduces external work. During carbohydrate restriction, the liver synthesizes the ketone bodies, D-β-hydroxybutyrate, and acetoacetate from fatty acids. In animals and in the presence of glucose, D-β-hydroxybut...

journal_title：Medicine and science in sports and exercise

authors： Holdsworth DA,Cox PJ,Kirk T,Stradling H,Impey SG,Clarke K

更新日期：2017-09-01 00:00:00

abstract：PURPOSE:To study the ventilatory effects of closely monitored cycle ergometer conditioning (HR target, 145-150 beats x min(-1); 25 min/session; three sessions per week) during the second and third pregnancy trimesters (TMs) in healthy human pregnancy. METHODS:Subjects were 27 previously sedentary pregnant women (exerc...

journal_title：Medicine and science in sports and exercise

authors： Ohtake PJ,Wolfe LA

更新日期：1998-01-01 00:00:00

abstract：:Children and adolescents possess higher weight-related maximum oxygen consumption (VO2max) levels than older individuals. The capacity of prepubescent children to improve aerobic fitness with endurance training is controversial, and reported data have provided conflicting evidence. In the adult, physical activity of c...

journal_title：Medicine and science in sports and exercise

authors： Rowland TW

更新日期：1985-10-01 00:00:00