Effects of daily activities on dual-energy X-ray absorptiometry measurements of body composition in active people.

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：: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：: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：PURPOSE:Compelling evidence suggests larger performance decrements during hypoxic versus normoxic repeated sprinting. Yet the underlying mechanical alterations have not been thoroughly investigated. Therefore, we examined the effects of different levels of normobaric hypoxia on running mechanical performance during rep...

journal_title：Medicine and science in sports and exercise

authors： Brocherie F,Millet GP,Morin JB,Girard O

更新日期：2016-08-01 00:00:00

abstract：UNLABELLED:The protective effects of cardiorespiratory fitness (CRF) on hypertension (HTN) are well known; however, the association between muscular strength and incidence of HTN has yet to be examined. PURPOSE:This study evaluated the strength-HTN association with and without accounting for CRF. METHODS:Participants...

journal_title：Medicine and science in sports and exercise

authors： Maslow AL,Sui X,Colabianchi N,Hussey J,Blair SN

更新日期：2010-02-01 00:00:00

abstract：PURPOSE:Physically active women have a reduced risk of breast cancer, but the dose of activity necessary and the role of energy balance and other potential mechanisms have not been fully explored in animal models. We examined treadmill and wheel running effects on mammary tumorigenesis and biomarkers in p53-deficient (...

journal_title：Medicine and science in sports and exercise

authors： Colbert LH,Westerlind KC,Perkins SN,Haines DC,Berrigan D,Donehower LA,Fuchs-Young R,Hursting SD

更新日期：2009-08-01 00:00:00

abstract：INTRODUCTION/PURPOSE:To examine whether fluctuations in training load during an Olympic year lead to changes in bone mineral densities and factors that regulate bone (sclerostin, osteoprotegerin and receptor activator of nuclear factor kappa-B ligand), energy metabolism (insulin-like growth factor-1 and leptin), and in...

journal_title：Medicine and science in sports and exercise

authors： Kurgan N,Logan-Sprenger H,Falk B,Klentrou P

更新日期：2018-09-01 00:00:00

abstract：PURPOSE:To determine whether the magnitude of improvement in athletic performance and the mechanisms driving these adaptations differ in relatively weak individuals exposed to either ballistic power training or heavy strength training. METHODS:Relatively weak men (n = 24) who could perform the back squat with proficie...

journal_title：Medicine and science in sports and exercise

authors： Cormie P,McGuigan MR,Newton RU

更新日期：2010-08-01 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:It has been well established in mammals that circadian behavior as well as the molecular clockwork can be synchronized to the light-dark cycle via the suprachiasmatic nucleus of the hypothalamus (SCN). In addition to light, it has been demonstrated that nonphotic time cues, such as restricting the time of food ...

journal_title：Medicine and science in sports and exercise

authors： Wolff G,Esser KA

更新日期：2012-09-01 00:00:00

abstract：INTRODUCTION:We examined the relationships between insulin-like growth factor I (IGF-I), its binding protein (IGFBP-3), body composition, and bone mineral density (BMD) in collegiate runners (N = 13), gymnasts (N = 10), and noncompetitive women (N = 10). METHODS:Subjects were evaluated by dual-energy x-ray absorptiome...

journal_title：Medicine and science in sports and exercise

authors： Snow CM,Rosen CJ,Robinson TL

更新日期：2000-11-01 00:00:00

abstract：:Forces that are repeatedly applied to the body could lead to positive remodeling of a structure if the forces fall below the tensile limit of the structure and if sufficient time is provided between force applications. On the other hand, an overuse injury could result if there is inadequate rest time between applied f...

journal_title：Medicine and science in sports and exercise

authors： Hreljac A

更新日期：2004-05-01 00:00:00

abstract：:Exercise represents the primary countermeasure used during spaceflight to maintain or restore maximal aerobic capacity (VO2max), musculoskeletal structure, and orthostatic function. However, no single exercise or combination of prescriptions has proven entirely effective in restoring cardiovascular and musculoskeletal...

journal_title：Medicine and science in sports and exercise

authors： Convertino VA

更新日期：1996-08-01 00:00:00

abstract：OBJECTIVE:The accurate determination of limitations in physical activity is important in evaluating patients with heart failure and in assessing the efficacy of treatment. However, the conventional measures used to evaluate hemodynamics, functional class, and exercise capacity all have limitations. Our objective was to...

journal_title：Medicine and science in sports and exercise

authors： Asakuma S,Fujiwara M,Ohyanagi M,Iwasaki T

更新日期：1999-01-01 00:00:00

abstract：INTRODUCTION:This study examined the effect of endurance exercise on dendritic arborization in the dentate gyrus subregion in rodents exposed to a predator scent stress (PSS). METHODS:Sprague-Dawley rats were randomly assigned to one of four treatment groups. In two of the groups, rats were unexposed to PSS but either...

journal_title：Medicine and science in sports and exercise

authors： Hoffman JR,Cohen H,Ostfeld I,Kaplan Z,Zohar J,Cohen H

更新日期：2016-12-01 00:00:00

abstract：:By placing the muscles of the take-off leg in faster eccentric or slower concentric conditions, a high jumper can increase the ground reaction force and the height of the jump. Film analysis of seven high jumpers showed that the radial velocity of the center of mass with respect to the supporting foot was more negativ...

journal_title：Medicine and science in sports and exercise

authors： Dapena J,Chung CS

更新日期：1988-06-01 00:00:00

abstract：PURPOSE:To provide evidence that lower-extremity muscle activity during running is tuned in response to the loading rate of the impact forces at heel-strike. METHODS:Six runners ran two 30-min trials per week for 4 wk. The trials tested two shoes which differed only in the material hardness of the midsole. The shoes w...

journal_title：Medicine and science in sports and exercise

authors： Wakeling JM,Pascual SA,Nigg BM

更新日期：2002-09-01 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：:The purpose of this study was to determine whether the magnitude of the activation force, defined as the force that must be applied to the load cell in order to activate the resistance arm of an isokinetic dynamometer, affected knee extensor torques. Twenty-four healthy female subjects performed resisted knee extensio...

journal_title：Medicine and science in sports and exercise

authors： Kramer JF,Vaz MD,Hakansson D

更新日期：1991-02-01 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:Deceptive manipulations of performance intensity have previously been investigated in cycling time trials (TT) but used different magnitudes, methods, and task durations. This study examines previously used magnitudes of deception during 16.1-km TT and explores yet unexamined psychological responses. METHODS:T...

journal_title：Medicine and science in sports and exercise

authors： Williams EL,Jones HS,Sparks SA,Midgley AW,Marchant DC,Bridge CA,McNaughton LR

更新日期：2015-11-01 00:00:00

abstract：:: The relevance of translational medicine (bringing basic science methods "to the bed of patients") is universally recognized. Too often, however, the tools to be applied translationally are thought to derive only from the "-omics" (genomics, proteomics, transcriptomics, metabolomics, etc.) world. The failures of this...

journal_title：Medicine and science in sports and exercise

authors： Grassi B,Porcelli S,Marzorati M

更新日期：2019-11-01 00:00:00

abstract：OBJECTIVE:To evaluate the effect of chronic moderate-intensity exercise upon the alterations of immune system cell function induced by energy restriction. METHODS:Forty male Wistar rats were randomly assigned to the following groups: sedentary animals fed ad libitum (SF, N = 10) or submitted to energy restriction (SER...

journal_title：Medicine and science in sports and exercise

authors： Dos Santos Cunha WD,Giampietro MV,De Souza DF,Vaisberg M,Seelaender MC,Rosa LF

更新日期：2004-12-01 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：PURPOSE:To test for relationships between objectively measured habitual physical activity and fundamental movement skills in a relatively large and representative sample of preschool children. METHODS:Physical activity was measured over 6 d using the Computer Science and Applications (CSA) accelerometer in 394 boys an...

journal_title：Medicine and science in sports and exercise

authors： Fisher A,Reilly JJ,Kelly LA,Montgomery C,Williamson A,Paton JY,Grant S

更新日期：2005-04-01 00:00:00

abstract：:Studies using wearable sensors to measure posture, physical activity (PA), and sedentary behavior typically use a single sensor worn on the ankle, thigh, wrist, or hip. Although the use of single sensors may be convenient, using multiple sensors is becoming more practical as sensors miniaturize. PURPOSE:We evaluated ...

journal_title：Medicine and science in sports and exercise

authors： Tang QU,John D,Thapa-Chhetry B,Arguello DJ,Intille S

更新日期：2020-08-01 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：INTRODUCTION:Caffeine is an exercise performance enhancer widely used by individuals engaged in training or competition under heat-stressed conditions. Caffeine ingestion during exercise in the heat is believed to be safe, since it does not greatly affect body temperature responses, heart rate or body fluid status. How...

journal_title：Medicine and science in sports and exercise

authors： Fujii N,Fujimoto T,Cao Y,Dobashi K,Matsutake R,Amano T,Wanatabe K,Nishiyasu T

更新日期：2020-10-07 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：PURPOSE:The best sprint performances are usually reached between the ages of 20 and 30 yr; however, even in well-trained individuals, performance continues to decrease with age. Although this inevitable decrease in performance has been related to reductions in muscular force, velocity, and power capabilities, these mea...

journal_title：Medicine and science in sports and exercise

authors： Pantoja PD,Saez DE Villarreal E,Brisswalter J,Peyré-Tartaruga LA,Morin JB

更新日期：2016-12-01 00:00:00