Effect of fitness on reflex sympathetic neurovascular transduction in middle-age men.

abstract：:Aerobic exercise training induces an increase in coronary blood flow capacity that is associated with altered control of coronary vascular resistance and, therefore, coronary blood flow. The relative importance of metabolic, myogenic, endothelium-mediated, and neurohumoral control systems varies throughout the coronar...

journal_title：Medicine and science in sports and exercise

authors： Laughlin MH,Oltman CL,Bowles DK

更新日期：1998-03-01 00:00:00

abstract：PURPOSE:Existing studies have failed to provide evidence of a positive effect on exercise performance by wearing compression short tights covering only both thighs. This could be due to an inadequate pressure intensity that otherwise has a significant effect if applied on the crucial point in the thigh. This study aime...

journal_title：Medicine and science in sports and exercise

authors： Miyamoto N,Kawakami Y

更新日期：2014-11-01 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：PURPOSE:Resting cardiac vagal modulation (RCVM) and postexercise vagal reactivation (PEVR) are markers of parasympathetic activity. We investigated whether adaptations in these markers to aerobic training are influenced by baseline autonomic control. METHODS:Forty healthy men (19.2 ± 0.8 yr) of similar cardiorespirato...

journal_title：Medicine and science in sports and exercise

authors： Duarte A,Soares PP,Pescatello L,Farinatti P

更新日期：2015-06-01 00:00:00

abstract：BACKGROUND:Pedometry methods for collecting data in young populations are advancing, but it is unclear how many days of data are enough for population monitoring. METHODS:Using random-digit dialing, 11,669 5- to 19-yr-olds were recruited into the Canadian Physical Activity Levels among Youth study and mailed a data co...

journal_title：Medicine and science in sports and exercise

authors： Craig CL,Tudor-Locke C,Cragg S,Cameron C

更新日期：2010-03-01 00:00:00

abstract：:We examined illness patterns in a cohort of 530 male and female runners who completed a monthly log for 12 months. The average number of upper respiratory tract infections (URTIs) per person per year for the cohort was 1.2. An upper respiratory tract infection was indicated by the report of any of the following sympto...

journal_title：Medicine and science in sports and exercise

authors： Heath GW,Ford ES,Craven TE,Macera CA,Jackson KL,Pate RR

更新日期：1991-02-01 00:00:00

abstract：UNLABELLED:Uncoupling protein 3 (UCP3) is a mitochondrial inner membrane protein, which is hypothesized to shuttle nonmetabolized fatty acids, particularly when excessive fatty acids are present. PURPOSE:Obese Zucker rats (OZR) have systematically elevated levels of fatty acids, with decreased fatty acid metabolism. W...

journal_title：Medicine and science in sports and exercise

authors： Peterson JM,Bryner RW,Frisbee JC,Alway SE

更新日期：2008-09-01 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：:The influence of body weight on the performance in cross-country skiing has been studied by: dimensional analysis of the ratio (R) between the factors of importance to power production (VO2max, acceleration of gravity) and the braking powers, e.g., friction and air resistance; measuring the energy cost of level skiing...

journal_title：Medicine and science in sports and exercise

authors： Bergh U

更新日期：1987-08-01 00:00:00

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:The purpose of this study was to determine whether fasting plasma leptin concentration was altered with an increase in training volume in competitive male and female athletes. METHODS:Intercollegiate male (N = 9) and female (N = 12) swimmers were examined during the preseason and at two times during the mid-se...

journal_title：Medicine and science in sports and exercise

authors： Noland RC,Baker JT,Boudreau SR,Kobe RW,Tanner CJ,Hickner RC,McCammon MR,Houmard JA

更新日期：2001-02-01 00:00:00

abstract：:The effects of supervised physical training (PT) and lifestyle education (LSE) on risk factors for coronary artery disease and non-insulin-dependent diabetes mellitus were compared in obese 7- to 11-yr-old black girls. The subjects were divided into two groups. The PT group (N = 12) completed a 5-d.wk-1, 10-wk, aerobi...

journal_title：Medicine and science in sports and exercise

authors： Gutin B,Cucuzzo N,Islam S,Smith C,Stachura ME

更新日期：1996-01-01 00:00:00

abstract：PURPOSE:The purpose of the study was to determine the effect of a home-based cycling program for women with a recent diagnosis of gestational diabetes mellitus (GDM) on aerobic fitness, weight gain, self-reported mobility, attitude, and intentions toward maternal exercise, and obstetric and neonatal outcomes. METHODS:...

journal_title：Medicine and science in sports and exercise

authors： Halse RE,Wallman KE,Dimmock JA,Newnham JP,Guelfi KJ

更新日期：2015-08-01 00:00:00

abstract：:The assumption that lower extremity function is bilaterally symmetrical is prevalent throughout the biomechanics literature. The unilateral development of many overuse and acute injuries may suggest that this assumption is inaccurate. Analyses of bilateral function report conflicting results and may be partially attri...

journal_title：Medicine and science in sports and exercise

authors： Schot PK,Bates BT,Dufek JS

更新日期：1994-09-01 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：PURPOSE:The objectives of this study were 1) to examine the differences between a noninjured (C) cohort of runners (N = 70) and runners afflicted with anterior knee pain (AKP) according to selected training, anthropometric, rearfoot motion, ground reaction force, and muscular strength and endurance variables; 2) to exp...

journal_title：Medicine and science in sports and exercise

authors： Duffey MJ,Martin DF,Cannon DW,Craven T,Messier SP

更新日期：2000-11-01 00:00:00

abstract：PURPOSE:This investigation assessed the effects of a 9-wk regimen of creatine monohydrate (Cr x H2O) supplementation coupled with resistance training on body composition and neuromuscular performance in NCAA Division I football athletes. METHODS:Twenty-five subjects were randomly assigned in a double-blind, randomized...

journal_title：Medicine and science in sports and exercise

authors： Bemben MG,Bemben DA,Loftiss DD,Knehans AW

更新日期：2001-10-01 00:00:00

abstract：:It is has been suggested that physical activity may increase bone mineral density (BMD) in children, thereby preventing development of osteoporosis later in life. We studied 14 gymnasts, 14 swimmers, and 17 controls to investigate whether participation in different types of sports among girls 7-9 yr of age is associat...

journal_title：Medicine and science in sports and exercise

authors： Cassell C,Benedict M,Specker B

更新日期：1996-10-01 00:00:00

abstract：PURPOSE:The present study was designed to develop and validate a prediction equation for peak oxygen consumption VO2peak) using a progressive treadmill test and to refine the current target HR exercise guidelines for pregnancy (PARmed-X for Pregnancy). METHODS:One hundred fifty-six women between 16 and 22 wk of gestat...

journal_title：Medicine and science in sports and exercise

authors： Mottola MF,Davenport MH,Brun CR,Inglis SD,Charlesworth S,Sopper MM

更新日期：2006-08-01 00:00:00

abstract：:The ventilatory stimulating effects of hypoxia occurring at carotid bodies are potentiated by exercise. However, hypoxia also has central ventilatory depressive effects; the potential interactions between this hypoxic depression and exercise have not been studied. We examined the ventilatory response to a 20 min perio...

journal_title：Medicine and science in sports and exercise

authors： Ward DS,Nguyen TT

更新日期：1991-06-01 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：:The utility of a biomechanical evaluation of an injury is shown for an incident involving bilateral tibial spiral fractures during skiing. With incorporation of directly measured binding release forces into a biomechanical model, estimates of torques transmitted to the skier's leg were determined. The analysis reveale...

journal_title：Medicine and science in sports and exercise

authors： Zernicke RF

更新日期：1981-01-01 00:00:00

abstract：PURPOSE:This study compared the effect of an initial exercise consisting of either low-intensity eccentric or maximal isometric contractions (ISOs) on protective effect against maximal eccentric contraction (MaxECC)-induced muscle damage. METHODS:Untrained young men were placed into one of five groups (n = 13 per grou...

journal_title：Medicine and science in sports and exercise

authors： Chen TC,Chen HL,Pearce AJ,Nosaka K

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:Skeletal muscle (SM), which is found mainly within the appendicular lean soft tissue (ALST) compartment, is a biological important body compartment. Simple and accurate methods to estimate both SM and ALST remain difficult to obtain. We aimed to develop and to cross-validate anthropometric models for ALST in at...

journal_title：Medicine and science in sports and exercise

authors： Quiterio AL,Carnero EA,Silva AM,Bright BC,Sardinha LB

更新日期：2009-04-01 00:00:00

abstract：PURPOSE:Obesity in adolescence increases the risk for early adult cardiovascular disease. We recently showed that 6 months of diet, exercise, and metformin resulted in reductions in adiposity and that diet/exercise alone reduced proinflammatory factors and intrahepatic fat in pubertal children with uncomplicated obesit...

journal_title：Medicine and science in sports and exercise

authors： Rynders C,Weltman A,Delgiorno C,Balagopal P,Damaso L,Killen K,Mauras N

更新日期：2012-05-01 00:00:00

abstract：OBJECTIVE:To determine the optimal crank length and crank-axle height for maximum power production during standing arm cranking ("grinding"). METHODS:Nine elite professional America's Cup grinders (age = 36 +/- 2 yr, body mass = 104 +/- 1 kg, body fat = 13% +/- 2%) performed eight maximal 6-s sprints on an adjustable ...

journal_title：Medicine and science in sports and exercise

authors： Neville V,Pain MT,Kantor J,Folland JP

更新日期：2010-02-01 00:00:00

abstract：UNLABELLED:Several investigators have demonstrated that chronic eccentric leg cycling is an effective method for improving lower body neuromuscular function (e.g., quadriceps muscle size, strength, and mobility) in a variety of patient and athletic populations. To date, there are no reports of using eccentric arm cycli...

journal_title：Medicine and science in sports and exercise

authors： Elmer SJ,Danvind J,Holmberg HC

更新日期：2013-01-01 00:00:00

abstract：:Cellular oxidants include a variety of reactive oxygen, nitrogen, and chlorinating species. It is well established that the increase in metabolic rate in skeletal muscle during contractile activity results in an increased production of oxidants. Failure to remove these oxidants during exercise can result in significan...

journal_title：Medicine and science in sports and exercise

authors： Powers SK,Ji LL,Leeuwenburgh C

更新日期：1999-07-01 00:00:00

abstract：PURPOSE:The purpose of this study was to evaluate physical performance (static and dynamic) of U.S. Air Force reservists after an eastbound air travel across seven time zones and to estimate the pharmacological aids slow-release caffeine and melatonin versus placebo in attempt to overcome the decline in performance. M...

journal_title：Medicine and science in sports and exercise

authors： Lagarde D,Chappuis B,Billaud PF,Ramont L,Chauffard F,French J

更新日期：2001-04-01 00:00:00

abstract：PURPOSE:Objective measurement with body worn instrumentation is a preferred and increasingly common way to gather information about young people's physical activity. Measured samples have been typically small and recruited through schools. The purpose of this article was to present the descriptive epidemiology of child...

journal_title：Medicine and science in sports and exercise

authors： Craig CL,Cameron C,Griffiths JM,Tudor-Locke C

更新日期：2010-09-01 00:00:00