Antioxidant and oxidative enzyme adaptations to vitamin E deprivation and training.

abstract：PURPOSE:This study investigated the effects of the menstrual cycle on prolonged exercise performance both in temperate (20°C, 45% relative humidity) and hot, humid (32°C, 60% relative humidity) conditions. METHODS:For each environmental condition, 12 recreationally active females were tested during the early follicula...

journal_title：Medicine and science in sports and exercise

authors： Janse DE Jonge XA,Thompson MW,Chuter VH,Silk LN,Thom JM

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:Past investigations indicate that training-related injuries are associated with certain performance-oriented measures of physical fitness and certain lifestyle characteristics. This study examined associations between injuries, direct (physiological) measures of physical fitness, and lifestyle characteristics. ...

journal_title：Medicine and science in sports and exercise

authors： Knapik JJ,Sharp MA,Canham-Chervak M,Hauret K,Patton JF,Jones BH

更新日期：2001-06-01 00:00:00

abstract：:Habitual physical activity reduces coronary heart disease events, but vigorous activity can also acutely and transiently increase the risk of sudden cardiac death and acute myocardial infarction in susceptible persons. This scientific statement discusses the potential cardiovascular complications of exercise, their pa...

journal_title：Medicine and science in sports and exercise

authors： American College of Sports Medicine.,American Heart Association.

更新日期：2007-05-01 00:00:00

abstract：:The availability of choline, the precurser of the neurotransmitter, acetylcholine, in the diet is sufficient to provide the body's requirements under normal conditions. However, preliminary evidence indicates that depletion of choline may limit performance, while oral supplementation may delay fatigue during prolonged...

journal_title：Medicine and science in sports and exercise

authors： Spector SA,Jackman MR,Sabounjian LA,Sakkas C,Landers DM,Willis WT

更新日期：1995-05-01 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：:We studied gastric and intestinal function by gastric intubation/intestinal perfusion in six healthy male volunteers to evaluate optimal use of a 6% glucose-electrolyte (GES) solution. Gastric volume, residual volume, emptying rate, and secretion were measured for an initial 763 +/- 19 ml gastric load of GES and at th...

journal_title：Medicine and science in sports and exercise

authors： Duchman SM,Ryan AJ,Schedl HP,Summers RW,Bleiler TL,Gisolfi CV

更新日期：1997-04-01 00:00:00

abstract：INTRODUCTION & PURPOSE:Obesity-related increases of weight on the chest wall are known to decrease lung volume and chest wall compliance, but the effect of this mass loading, independent of other obesity-related complications on the ventilatory response to exercise is unknown. The purpose of this study was to investiga...

journal_title：Medicine and science in sports and exercise

authors： Wang LY,Cerny FJ

更新日期：2004-05-01 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：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

abstract：:The effects of steady state exercise on the power spectrum of heart rate variability were studied in 19 healthy subjects. Continuous ECG signals were recorded during 1) 15 min of rest in the supine state, 2) 10 min of standing, 3) 10 min of steady state exercise at 50% of maximum predicted power output on a cycle ergo...

journal_title：Medicine and science in sports and exercise

authors： Kamath MV,Fallen EL,McKelvie R

更新日期：1991-04-01 00:00:00

abstract：PURPOSE:Carnosine is a dipeptide composed of β-alanine and L-histidine and is present in skeletal muscle. Chronic oral β-alanine supplementation can induce muscle carnosine loading and is therefore seen as the rate-limiting factor for carnosine synthesis. However, the effect of L-histidine supplementation on carnosine ...

journal_title：Medicine and science in sports and exercise

authors： Blancquaert L,Everaert I,Missinne M,Baguet A,Stegen S,Volkaert A,Petrovic M,Vervaet C,Achten E,DE Maeyer M,DE Henauw S,Derave W

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:FRESH START is a randomized controlled trial that will test whether a personally tailored, distance-medicine-based program will increase exercise and fruit and vegetable consumption, and decrease fat intake of individuals recently diagnosed with breast or prostate cancer. METHODS:Early-stage breast and prostat...

journal_title：Medicine and science in sports and exercise

authors： Demark-Wahnefried W,Clipp EC,McBride C,Lobach DF,Lipkus I,Peterson B,Clutter Snyder D,Sloane R,Arbanas J,Kraus WE

更新日期：2003-03-01 00:00:00

abstract：PURPOSE:This study aimed to examine the effect of altering osmolality or adding sodium alginate and pectin to a concentrated carbohydrate (CHO) beverage on gastric-emptying (GE) rate. METHODS:Boluses (500 mL) of three drinks were instilled double blind in eight healthy men while seated, GE was measured using the doubl...

journal_title：Medicine and science in sports and exercise

authors： Sutehall S,Galloway SDR,Bosch A,Pitsiladis Y

更新日期：2020-08-01 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：INTRODUCTION/PURPOSE:Cycling is associated with a reproducible systolic anterograde and diastolic retrograde flow pattern in the brachial artery (BA) of the inactive upper limb, which results in endothelial nitric oxide (NO) release. The purpose of this study was to examine the impact of different types and intensities...

journal_title：Medicine and science in sports and exercise

authors： Thijssen DH,Dawson EA,Black MA,Hopman MT,Cable NT,Green DJ

更新日期：2009-05-01 00:00:00

abstract：PURPOSE:The frequency of interruptions in sedentary time (sedentary breaks) is an aspect of sedentary behaviors that may be associated with metabolic health outcomes. The aim of this study was to describe the change in the frequency of sedentary breaks during a 10-yr period from ages 5 to 15 yr. METHODS:The longitudin...

journal_title：Medicine and science in sports and exercise

authors： Kwon S,Burns TL,Levy SM,Janz KF

更新日期：2012-06-01 00:00:00

abstract：PURPOSE:Text books attribute the side pain "stitch" during exercise to changes in blood flow to the viscera, but the little available research favors stretching of visceral ligaments. We therefore induced and modified stitch experimentally to investigate its cause and possible treatments. METHODS:Ten active healthy yo...

journal_title：Medicine and science in sports and exercise

authors： Plunkett BT,Hopkins WG

更新日期：1999-08-01 00:00:00

abstract：PURPOSE:The purpose of this study was to provide baseline data on immune status of exercising and sedentary exclusively lactating women. Dietary intake and body composition were also investigated to determine whether they related to immune function. METHODS:Healthy, exclusively breastfeeding women with a body mass ind...

journal_title：Medicine and science in sports and exercise

authors： Lovelady CA,Fuller CJ,Geigerman CM,Hunter CP,Kinsella TC

更新日期：2004-06-01 00:00:00

abstract：:The taper is a progressive nonlinear reduction of the training load during a variable period of time, in an attempt to reduce the physiological and psychological stress of daily training and optimize sports performance. The aim of the taper should be to minimize accumulated fatigue without compromising adaptations. Th...

journal_title：Medicine and science in sports and exercise

authors： Mujika I,Padilla S

更新日期：2003-07-01 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：:The purpose of this study was to determine the validity and evaluate the accuracy of a portable telemetric oxygen uptake analyzer (K2). Two experiments were carried out: a) using a mechanical lung, the accuracy of the K2 to measure oxygen fractions and minute ventilation following 10 and 60 min of warm-up was determin...

journal_title：Medicine and science in sports and exercise

authors： Crandall CG,Taylor SL,Raven PB

更新日期：1994-01-01 00:00:00

abstract：PURPOSE:Traction-induced injury, related to muscles of the superficial and deep posterior compartments, has been implicated as the cause of medial tibial stress syndrome (MTSS) with symptoms commonly occurring in the distal third of the posteromedial tibia. Standard anatomic texts do not identify this region as an atta...

journal_title：Medicine and science in sports and exercise

authors： Stickley CD,Hetzler RK,Kimura IF,Lozanoff S

更新日期：2009-11-01 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：:We investigated the relationship of aerobic fitness to the response of volume-regulating hormones to acute simulated microgravity. Six untrained (UT) and six endurance-trained (ET) healthy young males were studied in the head-down tilt (HDT) position of -6 degrees for 4 h. Peak oxygen uptake (VO2peak) and plasma volum...

journal_title：Medicine and science in sports and exercise

authors： Shi X,Squires WG,Williamson JW,Crandall CG,Chen JJ,Krock LP,Raven PB

更新日期：1992-09-01 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：: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：:A 19-yr-old college football player presents with a 1.5-yr history of right shoulder pain and associated easy fatigability of the right arm. The history is significant for an automobile accident 3 yr prior to presentation in which the right shoulder struck the dashboard of the car. An extensive workup proved unremarka...

journal_title：Medicine and science in sports and exercise

authors： Tucker AM

更新日期：1994-03-01 00:00:00

abstract：BACKGROUND:Extracellular vesicles (EV) are purported to mediate type 2 diabetes and CVD risk and development. Physical activity and a balanced diet reduce disease risk, but no study has tested the hypothesis that short-term interval (INT) training would reduce EV compared with continuous (CONT) exercise in adults with ...

journal_title：Medicine and science in sports and exercise

authors： Eichner NZM,Gilbertson NM,Heiston EM,Musante L,LA Salvia S,Weltman A,Erdbrugger U,Malin SK

更新日期：2020-03-01 00:00:00

abstract：PURPOSE:Cardiac aldosterone might be involved in the deleterious effects of nandrolone decanoate (ND) on the heart. Therefore, we investigated the involvement of cardiac aldosterone, by the pharmacological block of AT1 or mineralocorticoid receptors, on cardiac hypertrophy and fibrosis. METHODS:Male Wistar rats were r...

journal_title：Medicine and science in sports and exercise

authors： Do Carmo EC,Fernandes T,Koike D,Da Silva ND Jr,Mattos KC,Rosa KT,Barretti D,Melo SF,Wichi RB,Irigoyen MC,de Oliveira EM

更新日期：2011-10-01 00:00:00

abstract：:The use of 14C as tracer to measure lactate turnover and oxidation and its role in gluconeogenesis are discussed. Lactate is formed as well as utilized in many cells, and most of it in the body is present within cells so that interpretation of 14C data from labelled lactate is more complex and more difficult than that...

journal_title：Medicine and science in sports and exercise

authors： Katz J

更新日期：1986-06-01 00:00:00