Lactate exchange and removal abilities in rowing performance.

abstract：BACKGROUND:Sensitization of mechanosensitive afferents, which contribute to the exercise pressor reflex, has been recognized as a characteristic of patients with heart failure (HF); however, the hemodynamic implications of this hypersensitivity are unclear. OBJECTIVES:The present study used passive leg movement (PLM) ...

journal_title：Medicine and science in sports and exercise

authors： Ives SJ,Amann M,Venturelli M,Witman MA,Groot HJ,Wray DW,Morgan DE,Stehlik J,Richardson RS

更新日期：2016-03-01 00:00:00

abstract：:The field of developmental neurobiology is entering a very exciting phase, in which the application of new techniques promises to lead to major advances in our understanding of basic developmental processes. There is a need to apply much of this new knowledge to problems of spinal cord and muscle development, about wh...

journal_title：Medicine and science in sports and exercise

authors： O'Donovan MJ

更新日期：1985-02-01 00:00:00

abstract：PURPOSE:This study aimed to examine the link between stress (measured via salivary cortisol and testosterone), cognition (measured via pupillometry, with greater pupil constriction and reduced pupil constriction latency associated with increased attention and improved information processing), and motor skill capacity (...

journal_title：Medicine and science in sports and exercise

authors： Serpell BG,Waddington G,McGrath B,Cook CJ

更新日期：2020-11-01 00:00:00

abstract：:Motivation to engage in health-promoting exercise has been ascribed to global personality traits such as self-esteem or athletic self-confidence. Self-Efficacy Theory challenges this view by proposing that highly specific estimates of personal capabilities mediate adoption of new or difficult behavior patterns. We tes...

journal_title：Medicine and science in sports and exercise

authors： Ewart CK,Stewart KJ,Gillilan RE,Kelemen MH

更新日期：1986-10-01 00:00:00

abstract：:This study investigates the relationship between exercise and dietary macronutrient selection. Female Sprague-Dawley rats (5 months old) were placed on a macronutrient self-selection diet for 15 wk. Three food cups, each containing a separate vitamin and mineral supplemented macronutrient, i.e., fat, carbohydrate, or ...

journal_title：Medicine and science in sports and exercise

authors： Miller GD,Dimond AG,Stern JS

更新日期：1994-12-01 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

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 investigate the effects of strenuous exercise on heart rate variability (HRV). METHODS:We evaluated the effects of exercise intensity and duration on HRV indices in 14 healthy trained subjects. Each subject exercised for 3, 6, and 9 min at 60 and 70% of the power achieved at maximal oxygen consumption (PVO2...

journal_title：Medicine and science in sports and exercise

authors： Pichon AP,de Bisschop C,Roulaud M,Denjean A,Papelier Y

更新日期：2004-10-01 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 purpose of this study was to examine the exercise dose-response issue in a sample of 121 regular exercisers categorized as relatively low, moderate, or high dosage physical activity participants. METHODS:Male and female students, faculty, and staff of a midwestern university, currently engaging in various ...

journal_title：Medicine and science in sports and exercise

authors： Lox CL,Burns SP,Treasure DC,Wasley DA

更新日期：1999-07-01 00:00:00

abstract：PURPOSE:Investigate development of specific performance adaptions and hormonal responses every fourth week during a 12-wk high-intensity training (HIT) period in groups with different interval-training prescriptions. METHODS:Sixty-three well-trained cyclists performing a 12-wk intervention consisting of two to three H...

journal_title：Medicine and science in sports and exercise

authors： Sylta Ø,Tønnessen E,Sandbakk Ø,Hammarström D,Danielsen J,Skovereng K,Rønnestad BR,Seiler S

更新日期：2017-06-01 00:00:00

abstract：:The two goals of this study were: 1) to establish a stimulation pattern which would drive the gastrocnemius-plantaris muscle of the dog, in situ, to maximal work rate, W, and 2) to determine whether the surgical isolation of the circulation of this muscle, necessary to measure the muscle flow, Q, reduced the muscle's ...

journal_title：Medicine and science in sports and exercise

authors： Stainsby WN,Andrew GM

更新日期：1988-10-01 00:00:00

abstract：PURPOSE:Reducing ice friction was one of the motives for developing the klapskate. However, the magnitude of power dissipation that occurs with conventional skates when a skater plantar flexes his ankle and the tip of the blade is pressed into the ice has not been quantified previously. In this study, we examine how ic...

journal_title：Medicine and science in sports and exercise

authors： Houdijk H,Wijker AJ,De Koning JJ,Bobbert MF,De Groot G

更新日期：2001-03-01 00:00:00

abstract：INTRODUCTION:Oral beta2-agonist administration improves muscle function in persons without asthma. We performed a double-blind, randomized, controlled crossover study to assess whether acute inhaled salbutamol administration improves muscle strength and fatigability in healthy moderately trained subjects. METHODS:Quad...

journal_title：Medicine and science in sports and exercise

authors： Decorte N,Verges S,Flore P,Guinot M,Wuyam B

更新日期：2008-07-01 00:00:00

abstract：:Facial cooling (FC) elicits a marked bradycardia at rest that appears to be reduced during exercise. This study was done to delineate the effects of exercise mediated central command from those of muscle afferent feedback and sympathetic stimulation on the attenuation of the bradycardic effect of FC during the onset o...

journal_title：Medicine and science in sports and exercise

authors： Smith JC,Stephens DP,Winchester PK,Williamson JW

更新日期：1997-03-01 00:00:00

abstract：:The purpose of this study was to determine whether competitive and recreational runners would replicate land training intensity during water immersion (WI) running with (V) and without (NV) a flotation vest and during treadmill running (Tm). Seven female competitive runners (CR) and seven female noncompetitive runners...

journal_title：Medicine and science in sports and exercise

authors： Gehring MM,Keller BA,Brehm BA

更新日期：1997-10-01 00:00:00

abstract：:The objective of the Team Physician Consensus Statement is to provide physicians, school administrators, team owners, the general public, and individuals who are responsible for making decisions regarding the medical care of athletes and teams with guidelines for choosing a qualified team physician and an outline of t...

journal_title：Medicine and science in sports and exercise

authors：

更新日期：2000-04-01 00:00:00

abstract：UNLABELLED:Exertional heat stroke (EHS) is a state of extreme hyperthermia that occurs when excess heat that is generated by muscular exercise exceeds the body's ability to dissipate it at the same rate. EHS is thought to coincide with previously healthy, highly motivated, and relatively untrained individuals exerting ...

journal_title：Medicine and science in sports and exercise

authors： Epstein Y,Moran DS,Shapiro Y,Sohar E,Shemer J

更新日期：1999-02-01 00:00:00

abstract：:Ten eumenorrheic nonathletic women, aged 21-25, were studied on the 8th day following the LH peak in three consecutive cycles. Plasma level and metabolic clearance rate (MCR) of estradiol (E2) and progesterone (P) were measured before and during a 2-h continuous treadmill test at a speed corresponding to 70% of their ...

journal_title：Medicine and science in sports and exercise

authors： Montagnani CF,Arena B,Maffulli N

更新日期：1992-07-01 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：:A decrease in hepatic lactate dehydrogenase (LDH) activity following endurance training has been a consistent observation. In the present study, we sought to determine whether the training-induced decrease in hepatic LDH activity (pyruvate = substrate) was associated with a shift in the isoenzyme profile and/or altera...

journal_title：Medicine and science in sports and exercise

authors： Sumida KD,Frisch F,Donovan CM

更新日期：1995-04-01 00:00:00

abstract：:In many interventions that are based on an exercise program intended to induce weight loss, the mean weight loss observed is modest and sometimes far less than what the individual expected. The individual responses are also widely variable, with some individuals losing a substantial amount of weight, others maintainin...

journal_title：Medicine and science in sports and exercise

authors： Melanson EL,Keadle SK,Donnelly JE,Braun B,King NA

更新日期：2013-08-01 00:00:00

abstract：PURPOSE:To quantify variations in plantar pressure variables in healthy adults across five cardiovascular exercises. METHODS:Ten young (19-35 yr old) and 10 middle-aged (45-60 yr old) individuals participated. After equipment familiarization, plantar pressure data were recorded during walking, running, elliptical trai...

journal_title：Medicine and science in sports and exercise

authors： Burnfield JM,Jorde AG,Augustin TR,Augustin TA,Bashford GR

更新日期：2007-11-01 00:00:00

abstract：PURPOSE:The aim was to determine the feasibility of a 6-wk speed-based exercise program that could be used to initiate new exercise behaviors and to improve rapid movement in older adults approaching frailty. METHODS:The intervention group included 14 older adults (3 males and 11 females; mean ± SD, age = 70 ± 7.6 yr,...

journal_title：Medicine and science in sports and exercise

authors： Bellumori M,Uygur M,Knight CA

更新日期：2017-01-01 00:00:00

abstract：:It has been postulated that coactivation of antagonist hamstring musculature during active knee extension aids the anterior cruciate ligament (ACL) in maintaining joint stability by exerting an opposing torque to anterior tibial displacement induced by the quadriceps. It was the purpose of this study to compare contra...

journal_title：Medicine and science in sports and exercise

authors： Osternig LR,Caster BL,James CR

更新日期：1995-06-01 00:00:00

abstract：UNLABELLED:Exercise increases methionine metabolism, which also increases its amino acid metabolic intermediate, homocysteine (Hcy). High Hcy levels increase cardiovascular disease (CVD) risk, whereas B-vitamins (folate, vitamins B6, and B12) can reduce Hcy. Research exploring the relationship between exercise and Hcy ...

journal_title：Medicine and science in sports and exercise

authors： Joubert LM,Manore MM

更新日期：2008-11-01 00:00:00

abstract：PURPOSE:Orienteering athletes must adapt to running on various surfaces, with biomechanics likely contributing to performance. Here, our aims were to identify the effect of athletic status and of surface on the running biomechanics of orienteers. METHODS:Seven elite and seven amateur male orienteers ran 20 m on road, ...

journal_title：Medicine and science in sports and exercise

authors： Hébert-Losier K,Mourot L,Holmberg HC

更新日期：2015-02-01 00:00:00

abstract：PURPOSE:This study aimed to examine the influence of sagittal plane trunk posture on lower extremity energetics during running. METHODS:Forty asymptomatic recreational runners (20 males and 20 females) ran overground at a speed of 3.4 m·s(-1). Sagittal plane trunk kinematics and lower extremity kinematics and energeti...

journal_title：Medicine and science in sports and exercise

authors： Teng HL,Powers CM

更新日期：2015-03-01 00:00:00

abstract：UNLABELLED:High-speed auto racing has been demonstrated to produce accelerated heart rate (HR) during competition. However, it has not been determined whether the increase in HR was due to physical work efforts or a result of emotional stress. PURPOSE:The purpose of this investigation was to examine the physiological ...

journal_title：Medicine and science in sports and exercise

authors： Jacobs PL,Olvey SE,Johnson BM,Cohn K

更新日期：2002-12-01 00:00:00