Noninvasive measurement of muscle high-energy phosphates and glycogen concentrations in elite soccer players by 31P- and 13C-MRS.

abstract：PURPOSE:High school cross-country runners have a high incidence of injury, particularly at the shin and knee. An increased step rate during running has been shown to reduce impact forces and loading of the lower extremity joints. The purpose of this prospective study was to examine step rate as a risk factor for injury...

journal_title：Medicine and science in sports and exercise

authors： Luedke LE,Heiderscheit BC,Williams DS,Rauh MJ

更新日期：2016-07-01 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the effect of acute ingestion of modafinil (M) on time to exhaustion during high-intensity exercise. Modafinil (M) is a psychostimulant developed to treat narcolepsy, with "arousal" properties attributed to an increased release of dopamine in the CNS. Because other s...

journal_title：Medicine and science in sports and exercise

authors： Jacobs I,Bell DG

更新日期：2004-06-01 00:00:00

abstract：:The Age Discrimination in Employment Act has raised the issue of Bona Fide Occupational Qualifications for employment in the public safety sector. Complicating the issue is the number of lawsuits filed for violation of the Age Discrimination in Employment Act. Physical performance testing as an alternative to arbitrar...

journal_title：Medicine and science in sports and exercise

authors： Davis PO,Dotson CO

更新日期：1987-04-01 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：PURPOSE:Development of an endurance training-overtraining protocol for Wistar rats that includes increased workload and is characterized by analyses of performance and biomarkers. METHODS:The running protocol lasted 11 wk: 8 wk of daily exercise sessions followed by 3 wk of increasing training frequency (two, three, a...

journal_title：Medicine and science in sports and exercise

authors： Hohl R,Ferraresso RL,De Oliveira RB,Lucco R,Brenzikofer R,De Macedo DV

更新日期：2009-05-01 00:00:00

abstract：PURPOSE:Approximately 6500 high school football athletes are treated annually for exertional heat illness (EHI). In 2009, the National Athletic Trainers Association (NATA)-led Inter-Association Task Force (NATA-IATF) released preseason heat acclimatization guidelines to help athletes become accustomed to environmental ...

journal_title：Medicine and science in sports and exercise

authors： Kerr ZY,Marshall SW,Comstock RD,Casa DJ

更新日期：2014-01-01 00:00:00

abstract：INTRODUCTION:Androgen deprivation therapy (ADT) is associated with significant bone loss and an increase in fracture risk among prostate cancer survivors (PCS). We investigated whether impact + resistance training could stop ADT-related declines in bone mineral density (BMD) among PCS on ADT. METHODS:We randomized 51 ...

journal_title：Medicine and science in sports and exercise

authors： Winters-Stone KM,Dobek JC,Bennett JA,Maddalozzo GF,Ryan CW,Beer TM

更新日期：2014-08-01 00:00:00

abstract：PURPOSE:This study examines heavy episodic alcohol consumption and associated harms in collegiate athletes in the United States. The factors which may promote or deter such use are explored. METHODS:Randomly selected students in a nationally representative sample of 4-yr colleges in the United States completed self-re...

journal_title：Medicine and science in sports and exercise

authors： Nelson TF,Wechsler H

更新日期：2001-01-01 00:00:00

abstract：PURPOSE:This study aimed to quantify the repeated oxygen deficits attained during intermittent endurance exercise by measuring oxygen consumption (V˙O2) and oxygen demand (V˙O2) throughout a simulated roller ski race. METHODS:Eight male elite cross-country skiers (V˙O2peak, 77.4 ± 4.4 mL·kg⋅min) raced a 13.5-km roller...

journal_title：Medicine and science in sports and exercise

authors： Gløersen Ø,Gilgien M,Dysthe DK,Malthe-Sørenssen A,Losnegard T

更新日期：2020-04-01 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：PURPOSE:To evaluate the effect of maturity status on the autonomic nervous system at rest and recovery after short-term, high-intensity exercise in adolescents. METHODS:A biological maturity age was estimated in 27 males by calculating the years from peak height velocity (PHV) using a multiple regression equation. Sub...

journal_title：Medicine and science in sports and exercise

authors： Goulopoulou S,Heffernan KS,Fernhall B,Yates G,Baxter-Jones AD,Unnithan VB

更新日期：2006-05-01 00:00:00

abstract：PURPOSE:Athletes occasionally follow pacing patterns that seem unreasonably aggressive compared with those of prerace performances, potentially because of the motivation provided by competition. This study evaluated the effect of extrinsic motivation on cyclists' time trial performance. METHODS:Well-trained recreation...

journal_title：Medicine and science in sports and exercise

authors： Hulleman M,De Koning JJ,Hettinga FJ,Foster C

更新日期：2007-04-01 00:00:00

abstract：PURPOSE:Greater resistance to muscle fatigue has been observed in women versus men and in older versus young individuals. As suggested mechanisms for these differences include task intensity and duty cycle, the purpose of this study was to evaluate fatigue in healthy young and older men and women during maximum-effort ...

journal_title：Medicine and science in sports and exercise

authors： Russ DW,Towse TF,Wigmore DM,Lanza IR,Kent-Braun JA

更新日期：2008-02-01 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：:The cell-to-cell lactate shuttle was introduced in 1984 and has been repeatedly supported by studies using a variety of experimental approaches. Because of its large mass and metabolic capacity, skeletal muscle is probably the major component of the lactate shuttle in terms of both production and consumption. Muscles ...

journal_title：Medicine and science in sports and exercise

authors： Gladden LB

更新日期：2008-03-01 00:00:00

abstract：:Twenty well-trained runners (VO2max 4.6+/-0.5 L x min[-1]) were age and ability matched and assigned to either a cross training (CT) or run only group (RT). All subjects maintained normal running distance and intensity for 6 wk and reported for three additional training sessions per week. These workouts were performed...

journal_title：Medicine and science in sports and exercise

authors： Flynn MG,Carroll KK,Hall HL,Bushman BA,Brolinson PG,Weideman CA

更新日期：1998-02-01 00:00:00

abstract：:A 25-yr-old female triathlete presented with 4 d of increasing left calf pain that started 1 d after an elective termination of pregnancy during the eighth week of gestation. She had been training with running, bicycling, and swimming but did not recall any injury to the calf muscle. Deep venous thrombosis of the calf...

journal_title：Medicine and science in sports and exercise

authors： Roberts WO,Christie DM Jr

更新日期：1992-01-01 00:00:00

abstract：PURPOSE:Heart rate (HR) is widely used to adjust exercise intensity in aerobic training. Training HR recommendations are calculated often from simple equations. Because at lactate steady state (LASS) may be an intensity of exercise eliciting similar objective measures of intensity and similar subjective measures of met...

journal_title：Medicine and science in sports and exercise

authors： Roecker K,Niess AM,Horstmann T,Striegel H,Mayer F,Dickhuth HH

更新日期：2002-05-01 00:00:00

abstract：UNLABELLED:Hiking is a recreational activity shown to offer significant positive effects on the human body. However, walking downhill and external load carriage have both been shown to increase the risk of musculoskeletal pain and injury. The use of hiking poles has been demonstrated to be successful in reducing forces...

journal_title：Medicine and science in sports and exercise

authors： Bohne M,Abendroth-Smith J

更新日期：2007-01-01 00:00:00

abstract：PURPOSE:To compare different methods of quantifying time in physical activity (PA). METHODS:Twenty-five participants (12 male, 13 female) volunteered to be monitored for seven consecutive days, during which different PA patterns were measured by the simultaneous heart-rate motion sensor technique (HR+M). At the end of...

journal_title：Medicine and science in sports and exercise

authors： Strath SJ,Bassett DR Jr,Ham SA,Swartz AM

更新日期：2003-12-01 00:00:00

abstract：PURPOSE:We examined bilateral bone mineral density (BMD) in the arms of female college gymnasts to assess the relative contribution of high-impact loading forces versus daily activities on bone plasticity. METHODS:Twenty-five female collegiate gymnasts and 25 controls were studied. BMD of the lumbar spine, proximal fe...

journal_title：Medicine and science in sports and exercise

authors： Proctor KL,Adams WC,Shaffrath JD,Van Loan MD

更新日期：2002-11-01 00:00:00

abstract：PURPOSE:To determine the relationships between moderate-to-vigorous physical activity (MVPA), vigorous physical activity (VPA), sedentary time, and obesity in children from 12 countries representing a wide range of human development. METHODS:The sample included 6539 children age 9-11 yr. Times in MVPA, VPA, and sedent...

journal_title：Medicine and science in sports and exercise

authors： Katzmarzyk PT,Barreira TV,Broyles ST,Champagne CM,Chaput JP,Fogelholm M,Hu G,Johnson WD,Kuriyan R,Kurpad A,Lambert EV,Maher C,Maia J,Matsudo V,Olds T,Onywera V,Sarmiento OL,Standage M,Tremblay MS,Tudor-Locke C,Zha

更新日期：2015-10-01 00:00:00

abstract：INTRODUCTION:Acute bupropion (dopamine/noradrenaline reuptake inhibitor) administration significantly improved time trial performance and increased core temperature in the heat (30 degrees C). PURPOSE:The present study was performed to examine the effect of a dopaminergic reuptake inhibitor on exercise capacity and th...

journal_title：Medicine and science in sports and exercise

authors： Roelands B,Hasegawa H,Watson P,Piacentini MF,Buyse L,De Schutter G,Meeusen RR

更新日期：2008-05-01 00:00:00

abstract：PURPOSE:This study aimed to determine the effect of a caffeine-containing supplement on golf-specific performance and fatigue during a 36-hole competitive golf tournament. METHODS:Twelve male golfers (34.8 ± 13.9 yr, 175.9 ± 9.3 cm, 81.23 ± 13.14 kg) with a United States Golf Association handicap of 3-10 participated ...

journal_title：Medicine and science in sports and exercise

authors： Mumford PW,Tribby AC,Poole CN,Dalbo VJ,Scanlan AT,Moon JR,Roberts MD,Young KC

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:Exercise improves the diagnostic performance of ankle-to-brachial index (ABI) in the detection of exercise-induced arterial endofibrosis (EIAE). Pressure values for all four limbs are required to calculate ABI, but rapid systemic pressure changes occur during the recovery period from exercise. We checked whethe...

journal_title：Medicine and science in sports and exercise

authors： Le Faucheur A,Noury-Desvaux B,Jaquinandi V,Louis Saumet J,Abraham P

更新日期：2006-11-01 00:00:00

abstract：:Laboratory studies using direct calorimetry, a technique which is no longer either rare or difficult, have shown no essential differences between men and women who gain weight easily and the always lean. Both groups gained weight similarly when overeating by 1,000 kcal X d-1. Thermogenic responses to eating and the en...

journal_title：Medicine and science in sports and exercise

authors： Webb P

更新日期：1986-02-01 00:00:00

abstract：:The extent of the growth changes in maximal work output during 10 s (MWO10), 30 s (MWO30), and 90 s (MWO90) of maximal repetitive knee flexions and extensions assessed on a modified Hydra-Gym machine was investigated in 84 boys and 83 girls, 9-19 yr of age. Body weight, fat mass and fat free mass by underwater weighin...

journal_title：Medicine and science in sports and exercise

authors： Saavedra C,Lagassé P,Bouchard C,Simoneau JA

更新日期：1991-09-01 00:00:00

abstract：UNLABELLED:We previously reported that a mathematical model could accurately predict steady-state road-cycling power when all the model parameters were known. Application of that model to competitive cycling has been limited by the need to obtain accurate parameter values, the non-steady-state nature of many cycling ev...

journal_title：Medicine and science in sports and exercise

authors： Martin JC,Gardner AS,Barras M,Martin DT

更新日期：2006-03-01 00:00:00

abstract：PURPOSE:A twin design was used to test whether the association between exercise behavior and heart rate and the association between exercise behavior and respiratory sinus arrhythmia (RSA) derive from a common genetic factor. METHODS:Data were available from 157 adolescent (aged 13-22) and 208 middle-aged twin pairs (...

journal_title：Medicine and science in sports and exercise

authors： De Geus EJ,Boomsma DI,Snieder H

更新日期：2003-08-01 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