Primary dysmenorrhea and physical activity.

abstract：:Although estradiol (E2) is considered primarily for its role in reproduction, it can exert numerous physiological actions on a variety of tissues. However, there are several difficulties in isolating these actions and determining its impact for in vivo situations. Despite the limitations, it does appear that E2 can al...

journal_title：Medicine and science in sports and exercise

authors： Bunt JC

更新日期：1990-06-01 00:00:00

abstract：:It is commonly believed that exposure to cold environmental temperatures depresses immune function and increases the risk for infection. This review paper will 1) present an overview of human physiological responses to cold exposure, 2) present the human studies examining the effects of cold exposure on immune respons...

journal_title：Medicine and science in sports and exercise

authors： Castellani JW,M Brenner IK,Rhind SG

更新日期：2002-12-01 00:00:00

abstract：PURPOSE:the objective of this study was to characterize the biomechanical effects of step rate modification during running on the hip, knee, and ankle joints so as to evaluate a potential strategy to reduce lower extremity loading and risk for injury. METHODS:three-dimensional kinematics and kinetics were recorded fro...

journal_title：Medicine and science in sports and exercise

authors： Heiderscheit BC,Chumanov ES,Michalski MP,Wille CM,Ryan MB

更新日期：2011-02-01 00:00:00

abstract：PURPOSE:Physical activity questionnaires (PAQs) are considered the most cost-efficient method to estimate total energy expenditure (TEE) in epidemiological studies. However, relatively few PAQs have been validated using doubly labeled water (DLW) in women or in samples with diverse ethnic backgrounds. This study was co...

journal_title：Medicine and science in sports and exercise

authors： Staten LK,Taren DL,Howell WH,Tobar M,Poehlman ET,Hill A,Reid PM,Ritenbaugh C

更新日期：2001-11-01 00:00:00

abstract：:This study examined the association between aerobic, caloric exercise expenditure and life status (living vs deceased) as well as the prevalence rates of hypertension (HBP) and cardiovascular disease (CVD) in former male athletes (ATH) and non-athletes (N-ATH). The initial survey for this study was done in 1952. Follo...

journal_title：Medicine and science in sports and exercise

authors： Quinn TJ,Sprague HA,Van Huss WD,Olson HW

更新日期：1990-12-01 00:00:00

abstract：PURPOSE:To assess reliability and validity of the 7-d physical activity recall (PAR) in 60- to 80-yr-old men from urban and rural homes in the southeastern United States. METHODS:Two hundred twenty 60- to 80-yr-old men (29% minority ethnicity) from Veterans Affairs primary care clinics completed two PAR interviews at ...

journal_title：Medicine and science in sports and exercise

authors： Dubbert PM,Vander Weg MW,Kirchner KA,Shaw B

更新日期：2004-09-01 00:00:00

abstract：:This study assessed body density (BD) in an ethnically diverse sample of women (African American, Caucasian, Mexican American and Native American) (N = 139) who were between 20 and 30 or 40 and 50 yr of age and of normal weight for their height. BD was assessed using three methods: hydrostatically determined density (...

journal_title：Medicine and science in sports and exercise

authors： Thomas KT,Keller CS,Holbert KE

更新日期：1997-01-01 00:00:00

abstract：:The advantages of performing simultaneous inferences on the means of several response variables using multivariate analysis of variance are discussed. They include control over the problem of declaring false significant differences and the ability to investigate the effects of treatment on a given response variable af...

journal_title：Medicine and science in sports and exercise

authors： Donner AP,Cunningham DA

更新日期：1983-01-01 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:Female athletes often demonstrate changes in cardiac dimensions that are less prominent than in male athletes, and results from longitudinal studies are conflicting. The atrioventricular plane displacement (AVPD) in the heart is used as an index of left ventricular systolic function with the assumption that it ...

journal_title：Medicine and science in sports and exercise

authors： Slørdahl SA,Madslien VO,Støylen A,Kjos A,Helgerud J,Wisløff U

更新日期：2004-11-01 00:00:00

abstract：PURPOSE:The development of valid measures of built environments relevant for physical activity is an important step toward controlling the global epidemic of physical inactivity-related noncommunicable diseases and deaths. This study assessed the construct validity of a self-report neighborhood environment walkability ...

journal_title：Medicine and science in sports and exercise

authors： Oyeyemi AL,Conway TL,Adedoyin RA,Akinroye KK,Aryeetey R,Assah F,Cain KL,Gavand KA,Kasoma SS,Kolbe-Alexander TL,Lambert EV,Larouche R,Moss SJ,Ocansey R,Onywera VO,Prista A,Tremblay MS,Sallis JF

更新日期：2017-03-01 00:00:00

abstract：PURPOSE:To determine whether physical performance adaptation is impaired in smokers during early stages of military training and to examine some of the putative mechanistic candidates that could explain any impairment. METHODS:We examined measures of oxidative stress (malondialdehyde [MDA], lipid hydroperoxides), infl...

journal_title：Medicine and science in sports and exercise

authors： Siddall A,Bilzon J,Thompson D,Tauler P,Greeves J,Izard R,Stokes K

更新日期：2020-05-01 00:00:00

abstract：:The inheritance of cardiac changes during acute dynamic physical exercise was studied in 21 pairs of monozygotic and 12 pairs of dizygotic male twins, ages 18-31 yr. Echocardiography was performed in resting conditions and at submaximal supine bicycle exercise at a heart rate of 110 bpm. In resting conditions signific...

journal_title：Medicine and science in sports and exercise

authors： Bielen EC,Fagard RH,Amery AK

更新日期：1991-11-01 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：:This document provides an overview of selected medical issues that are important to team physicians who are responsible for the care and treatment of athletes. It is not intended as a standard of care and should not be interpreted as such. This document is only a guide and, as such, is of a general nature, consistent ...

journal_title：Medicine and science in sports and exercise

authors：

更新日期：2008-11-01 00:00:00

abstract：INTRODUCTION:A nonlinear dynamic systems model has previously been proposed to explain pacing strategies employed during exercise. PURPOSE:This study was conducted to examine the pacing strategies used under varying conditions during the cycle phase of an Ironman triathlon. METHODS:The bicycles of six well-trained ma...

journal_title：Medicine and science in sports and exercise

authors： Abbiss CR,Quod MJ,Martin DT,Netto KJ,Nosaka K,Lee H,Surriano R,Bishop D,Laursen PB

更新日期：2006-04-01 00:00:00

abstract：PURPOSE:The purpose of this paper was to determine whether differences in hemoglobin (Hb) and muscle aerobic capacity exist between African-American (AA) and Caucasian (CA) premenopausal women and to determine whether Hb and aerobic capacity of the muscle are associated with the racial differences in maximum oxygen upt...

journal_title：Medicine and science in sports and exercise

authors： Hunter GR,Weinsier RL,McCarthy JP,Enette Larson-Meyer D,Newcomer BR

更新日期：2001-10-01 00:00:00

abstract：OBJECTIVE:This study investigated the contributions of physical fitness and body composition to 24-h fat oxidation in adults under sedentary conditions in a whole-room calorimeter. METHODS:The following measurements were studied in 109 adults (49 male/45 female) at least 36 h after a bout of exercise: 1) aerobic fitne...

journal_title：Medicine and science in sports and exercise

authors： Kriketos AD,Sharp TA,Seagle HM,Peters JC,Hill JO

更新日期：2000-04-01 00:00:00

abstract：PURPOSE:To determine whether physical activity and fitness change in girls with and without a predisposition to obesity from 8 to 10 yr of age. METHODS:Normal-weight girls (N = 91) were recruited at 8 yr of age according to parental body mass index (BMI): LN = girls with two lean (BMI < 25 kg.m-2) parents, LNOB = girl...

journal_title：Medicine and science in sports and exercise

authors： Treuth MS,Butte NF,Adolph AL,Puyau MR

更新日期：2004-02-01 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：PURPOSE:The study purposes were 1) to study the differences between perceived exertion measured by a generic (/10) or an individualized (/max value obtained during the test) score on the OMNI cycle scale (OMNImax and OMNI10) and the actual effort (peak oxygen consumption) at different stages of a maximal cycling test i...

journal_title：Medicine and science in sports and exercise

authors： Lemay V,O'Loughlin J,Tremblay A,Mathieu ME

更新日期：2013-05-01 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：:Skeletal muscle is characterized by its ability to dynamically adapt to variable levels of functional demands. During periods of insufficient training stimulus, muscular detraining occurs. This may be characterized by a decreased capillary density, which could take place within 2--3 wk of inactivity. Arterial-venous o...

journal_title：Medicine and science in sports and exercise

authors： Mujika I,Padilla S

更新日期：2001-08-01 00:00:00

abstract：:The effects of metabolic alkalosis on muscle lactate accumulation and plasma catecholamine concentrations were studied in six highly trained subjects during short-term ergocycle exercises to exhaustion (375 W). The studies were performed after oral administration of NaHCO3 (alkalosis) and CaCO3 (placebo). There was a ...

journal_title：Medicine and science in sports and exercise

authors： Bouissou P,Defer G,Guezennec CY,Estrade PY,Serrurier B

更新日期：1988-06-01 00:00:00

abstract：INTRODUCTION:Exercise with limb blood flow restriction (BFR) is a very popular exercise modality in Japan and is spreading widely to the rest of the world. The underlying principle of this training modality is that under the conditions of restricted blood flow, even low-intensity exercise can provide significant muscle...

journal_title：Medicine and science in sports and exercise

authors： Renzi CP,Tanaka H,Sugawara J

更新日期：2010-04-01 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：:The purpose of this study was to extend our knowledge of running related injuries by determining whether relationships exist between selected anthropometric, biomechanical, muscular strength and endurance, and training variables and runners afflicted with patellofemoral pain (PFP). Specifically, the objectives of this...

journal_title：Medicine and science in sports and exercise

authors： Messier SP,Davis SE,Curl WW,Lowery RB,Pack RJ

更新日期：1991-09-01 00:00:00

abstract：:The purposes of this investigation were to compare selected gait parameters characteristic of running without respiratory apparatus on a treadmill (NOR) with those displayed while wearing a mouthpiece-breathing valve apparatus (MP) and while wearing a respiratory face mask (MASK), and to compare the running economy (R...

journal_title：Medicine and science in sports and exercise

authors： Siler WL

更新日期：1993-02-01 00:00:00

abstract：PURPOSE:To assess the validity of the new Actical accelerometer step count function. METHODS:Actical step counts were compared according to two criterion standards. 1) Eight Acticals were assessed using a mechanical shaker table under six different testing conditions. 2) Thirty-eight volunteers (aged 9-59 yr) wore eig...

journal_title：Medicine and science in sports and exercise

authors： Esliger DW,Probert A,Connor Gorber S,Bryan S,Laviolette M,Tremblay MS

更新日期：2007-07-01 00:00:00

abstract：PURPOSE:Physical activity guidelines recommend at least 150 min of moderate-intensity physical activity (MPA), 75 min of vigorous-intensity physical activity (VPA), or combination of MPA and VPA. However, few epidemiological studies have examined whether the general population can derive equal health benefits from MPA ...

journal_title：Medicine and science in sports and exercise

authors： Kikuchi H,Inoue S,Lee IM,Odagiri Y,Sawada N,Inoue M,Tsugane S

更新日期：2018-04-01 00:00:00