Biological and technological variability of residual lung volume and the effect on body fat calculations.

abstract：:The association of physical activity to the initiation of health risk behaviors was examined in a 3-yr prospective study of a population-based cohort of 1245 adolescents aged 12-16 yr. Four hundred thirty-seven students (35% of the cohort) were identified at baseline via self-report survey as never having smoked cigar...

journal_title：Medicine and science in sports and exercise

authors： Aaron DJ,Dearwater SR,Anderson R,Olsen T,Kriska AM,Laporte RE

更新日期：1995-12-01 00:00:00

abstract：PURPOSE:To characterize the hemodynamic and ventilatory responses to exercise in a group of patients with unexplained dyspnea, increased risk for pulmonary arterial hypertension (PAH), and an elevated mean pulmonary artery pressure (mPAP; >30 mm Hg) on exercise. METHODS:A total of 37 symptomatic patients at risk of PA...

journal_title：Medicine and science in sports and exercise

authors： Fowler RM,Maiorana AJ,Jenkins SC,Gain KR,O'Driscoll G,Gabbay E

更新日期：2011-06-01 00:00:00

abstract：INTRODUCTION:Competitive female athletes restrict energy intake and increase exercise energy expenditure frequently resulting in ovarian suppression. The purpose of this study was to determine the impact of ovarian suppression and energy deficit on swimming performance (400-m swim velocity). METHODS:Menstrual status w...

journal_title：Medicine and science in sports and exercise

authors： Vanheest JL,Rodgers CD,Mahoney CE,De Souza MJ

更新日期：2014-01-01 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：PURPOSE:Exercise has been well documented to exert a beneficial effect on cardiovascular health. The effective control of arterial pressure (BP) is essential from the standpoint of cardiovascular prevention. So far, no study has determined the long-term effect of regular training as a monotherapy on both BP at rest and...

journal_title：Medicine and science in sports and exercise

authors： Ketelhut RG,Franz IW,Scholze J

更新日期：2004-01-01 00:00:00

abstract：:Myocardial crypts are extensions of blood signal penetrating the compact myocardium and are considered in literature as either a distinctive cardiac magnetic resonance (CMR) imaging marker for hypertrophic cardiomyopathy or as benign congenital malformations. What if CMR reveals a myocardial crypt in the presence of a...

journal_title：Medicine and science in sports and exercise

authors： Neunhäuserer D,Ermolao A,Corbetti F,Niebauer J,Zaccaria M,Gasperetti A

更新日期：2015-02-01 00:00:00

abstract：PURPOSE:This study was conducted to test whether a low-frequency vibration-like stimulus (rapid variable resistance) applied during a single session of knee extension exercise would alter muscle performance. METHODS:Torque, knee joint angle, EMG activity of rectus femoris (RF) and vastus lateralis (VL) muscles, and VL...

journal_title：Medicine and science in sports and exercise

authors： Mileva KN,Naleem AA,Biswas SK,Marwood S,Bowtell JL

更新日期：2006-07-01 00:00:00

abstract：INTRODUCTION:This study examined the influence of a supplement matrix on the excretion pattern of nandrolone metabolites in response to ingestion of a trace amount of 19-norandrostenedione. METHODS:Ten male and nine female volunteers (mean ± SD: age = 26 ± 3 yr, height = 1.71 ± 0.09 m, body mass = 70.9 ± 13.2 kg) were...

journal_title：Medicine and science in sports and exercise

authors： Watson P,Houghton E,Grace PB,Judkins C,Dunster PM,Maughan RJ

更新日期：2010-04-01 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：:We sought to determine how a stationary activity such as playing a stringed instrument may affect energy expenditure (EE) in adolescents. Using automated indirect calorimetry, we measured EE in eight adolescents (1 male, 7 females, 14.2 +/- 2.1 yr) while they each performed the following activities: watching televisio...

journal_title：Medicine and science in sports and exercise

authors： Horswill CA,Kien CL,Zipf WB

更新日期：1995-09-01 00:00:00

abstract：:Recent research has demonstrated that intracellular signaling components associated with several proinflammatory cytokines have the potential to interact with signaling pathways that regulate anabolic processes in skeletal muscle. This presentation and the ensuing brief review are intended to present a selection of th...

journal_title：Medicine and science in sports and exercise

authors： Adams GR

更新日期：2010-01-01 00:00:00

abstract：PURPOSE:This pilot work was conducted to evaluate the effects of neuromuscular electrical stimulation resistance training (RT) of the paralyzed knee extensor muscle groups on skeletal muscle and intramuscular fat (IMF) cross-sectional areas, trunk visceral adipose tissue (VAT), carbohydrate, and lipid profiles in men w...

journal_title：Medicine and science in sports and exercise

authors： Gorgey AS,Mather KJ,Cupp HR,Gater DR

更新日期：2012-01-01 00:00:00

abstract：PURPOSE:Regular physical activity leads to a more favorable cardiovascular risk factor profile and a lower risk of developing incident coronary heart disease (CHD). These correlations suggest that higher levels of physical activity should also attenuate the presence and extent of coronary atherosclerosis. METHODS:Phys...

journal_title：Medicine and science in sports and exercise

authors： Taylor AJ,Watkins T,Bell D,Carrow J,Bindeman J,Scherr D,Feuerstein I,Wong H,Bhattarai S,Vaitkus M,O'Malley PG

更新日期：2002-02-01 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:This study aimed to evaluate the effect of an exercise program of two different intensities, with nutritional control, on gestational weight gain (GWG), infant birth weight, and maternal weight retention at 2 months postpartum (2 mopp). METHODS:Pregnant women (prepregnancy body mass index = 18.5-24.9 kg·m) wer...

journal_title：Medicine and science in sports and exercise

authors： Ruchat SM,Davenport MH,Giroux I,Hillier M,Batada A,Sopper MM,Hammond JM,Mottola MF

更新日期：2012-08-01 00:00:00

abstract：:Twelve 9- to 12-year-old children (6 boys, 6 girls) performed four exercise-in-heat (35 degrees C, 45% RH) trials which differed in the composition of the fluids they drank. In each trial, subjects cycled for one 20-min and two 15-min bouts at 50% peak VO2 with 10-min rest periods in between. In a fourth bout, they cy...

journal_title：Medicine and science in sports and exercise

authors： Meyer F,Bar-Or O,MacDougall D,Heigenhauser GJ

更新日期：1995-06-01 00:00:00

abstract：INTRODUCTION/PURPOSE:Aging with a sedentary lifestyle is associated with increased risk for developing cardiovascular disease (CVD), osteoporosis, and sarcopenia. The purpose of this study was to determine whether former professional football athleticism would be associated with reduced risk factors for CVD and osteopo...

journal_title：Medicine and science in sports and exercise

authors： Lynch NA,Ryan AS,Evans J,Katzel LI,Goldberg AP

更新日期：2007-07-01 00:00:00

abstract：PURPOSE:Splanchnic hypoperfusion is a physiological phenomenon during strenuous exercise. It has been associated with gastrointestinal symptoms and intestinal injury and may hamper athletic performance. We hypothesized that L-citrulline supplementation improves splanchnic perfusion and decreases intestinal injury by en...

journal_title：Medicine and science in sports and exercise

authors： van Wijck K,Wijnands KA,Meesters DM,Boonen B,van Loon LJ,Buurman WA,Dejong CH,Lenaerts K,Poeze M

更新日期：2014-11-01 00:00:00

abstract：PURPOSE:To describe physical activity (PA) levels by race/ethnicity, age, gender, and weight status in a representative sample of US youth. METHODS:Cross-sectional data from the 2003-2004 and 2005-2006 National Health and Nutrition Examination Survey were combined and analyzed. Youth aged 6-19 yr with at least four 10...

journal_title：Medicine and science in sports and exercise

authors： Belcher BR,Berrigan D,Dodd KW,Emken BA,Chou CP,Spruijt-Metz D

更新日期：2010-12-01 00:00:00

abstract：:Physical inactivity has been linked to rates of obesity, diabetes, and heart disease through insulin resistance and other mechanisms. Although sedentary workplace environments have unintentionally contributed to the risk for chronic diseases, innovations in the workplace environment could potentially rectify this publ...

journal_title：Medicine and science in sports and exercise

authors： Han HO,Lim J,Viskochil R,Aguiar EJ,Tudor-Locke C,Chipkin SR

更新日期：2018-10-01 00:00:00

abstract：PURPOSE:Walking is likely to contribute substantially to nonexercise activity thermogenesis. The Tracmor triaxial accelerometer system (Maastricht, The Netherlands) is the most widely validated system for detecting body movement in free-living subjects. The aim of this study was to validate the Tracmor triaxial acceler...

journal_title：Medicine and science in sports and exercise

authors： Levine JA,Baukol PA,Westerterp KR

更新日期：2001-09-01 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：:Cyclic AMP increases in liver during exercise, the magnitude of the increase being dependent on duration and intensity of the exercise. Within limits, the increase in cAMP is closely correlated with the rate of glycogenolysis and with the exercise intensity. It is unlikely that epinephrine is involved in determining c...

journal_title：Medicine and science in sports and exercise

authors： Winder WW

更新日期：1988-12-01 00:00:00

abstract：:The purpose of this investigation was to determine the influence of post-exercise carbohydrate (CHO) intake on the rate of muscle glycogen resynthesis after high intensity weight resistance exercise in subjects not currently weight training. In a cross-over design, eight male subjects performed sets (mean = 8.8) of si...

journal_title：Medicine and science in sports and exercise

authors： Pascoe DD,Costill DL,Fink WJ,Robergs RA,Zachwieja JJ

更新日期：1993-03-01 00:00:00

abstract：:Perceptual and physiological congruity was examined during recovery from high-intensity dynamic exercise. Nine males (24.8 +/- 0.6 yr; VO2max; 52.3 +/- 1.5 ml.kg-1.min-1) undertook in random order four maximal treadmill protocols. Treadmill speed was held constant (5.3 km.h-1) while grade was incremented by 2, 4, 6, o...

journal_title：Medicine and science in sports and exercise

authors： Robertson RJ,Nixon PA,Caspersen CJ,Metz KF,Abbott RA,Goss FL

更新日期：1992-03-01 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：PURPOSE:To validate the 7-d Physical Activity Recall (PAR) telephone interview version and its activity intensity categories. METHODS:Seventy-four adults (47 women, 27 men), ranging in age (18-67) and activity levels, were interviewed by phone and in-person using the same PAR protocol. Each participant wore a TriTrac-...

journal_title：Medicine and science in sports and exercise

authors： Hayden-Wade HA,Coleman KJ,Sallis JF,Armstrong C

更新日期：2003-05-01 00:00:00

abstract：PURPOSE:To assess physical activity, and its associations with health, clinical, and biochemical factors, in patients with stages 2-4 of chronic kidney disease (CKD). METHODS:Cross-sectional data were collected from 120 patients with CKD enrolled in the Lipid lowering and Onset of Renal Disease (LORD) trial. Patients ...

journal_title：Medicine and science in sports and exercise

authors： Fassett RG,Robertson IK,Geraghty DP,Ball MJ,Burton NW,Coombes JS

更新日期：2009-05-01 00:00:00

abstract：:To determine the effect of large and sudden increases in training volume on performance characteristics and the feasibility of using overtraining syndrome symptoms to monitor performance changes, 15 elite judo athletes were examined through 10 wk of training. Athletes performed their regular regimens of resistance (3 ...

journal_title：Medicine and science in sports and exercise

authors： Callister R,Callister RJ,Fleck SJ,Dudley GA

更新日期：1990-12-01 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