Regular physical activity influences plasma ghrelin concentration in adolescent girls.

abstract：PURPOSE:This study aimed to establish whether time spent in sport-related physical activities and sedentary behaviors (e.g., TV viewing, videogame usage, and homework) was prospectively associated with change in blood pressure (BP) for 5 yr. METHODS:Eight hundred and twenty-one students age 6 yr at baseline (397 girls...

journal_title：Medicine and science in sports and exercise

authors： Gopinath B,Hardy LL,Kifley A,Baur LA,Mitchell P

更新日期：2014-04-01 00:00:00

abstract：PURPOSE:: To evaluate the initial effects of antipronation taping (APT) on foot posture and electromyographic (EMG) activity of tibialis anterior (TA), tibialis posterior (TP), and peroneus longus (PL) muscles during walking. METHODS:: Five asymptomatic individuals who exhibited lower medial longitudinal arch height o...

journal_title：Medicine and science in sports and exercise

authors： Franettovich M,Chapman A,Vicenzino B

更新日期：2008-04-01 00:00:00

abstract：PURPOSE:To investigate the effects of speech production on physiological responses during sub maximal exercise of various intensities. METHODS:Three constant levels running at work intensities corresponding to 65%, 75%, and 85% of the subjects' (N = 14) VO(2) max were performed with and without talking. These loads we...

journal_title：Medicine and science in sports and exercise

authors： Meckel Y,Rotstein A,Inbar O

更新日期：2002-08-01 00:00:00

abstract：PURPOSE:The objective of this study was to quantify age-related changes in accelerometer-derived day-level physical activity and sedentary behavior pattern metrics (i.e., number, length, and temporal dispersion of bouts and breaks) across 3 yr of middle childhood. Differences by child sex and weekend versus weekday wer...

journal_title：Medicine and science in sports and exercise

authors： Dunton GF,Yang CH,Zink J,Dzubur E,Belcher BR

更新日期：2020-06-01 00:00:00

abstract：:Ten pairs of monozygotic twins of both sexes were submitted to a 20-wk endurance-training program, four and five times per week, 40 min per session, at an average of 80% of the maximal heart rate reserve. Testing and training were performed on cycle ergometers. Maximal aerobic power (MAP in ml O2 X min-1 X kg-1) and v...

journal_title：Medicine and science in sports and exercise

authors： Prud'homme D,Bouchard C,Leblanc C,Landry F,Fontaine E

更新日期：1984-10-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare the modified Broström and Evans procedures for simulated lateral ankle instability in cadaveric lower extremities. METHODS:Six normal cadaveric ankles were loaded with inversion and internal rotation stress through the range of ankle flexion, and three-dimensional motio...

journal_title：Medicine and science in sports and exercise

authors： Fujii T,Kitaoka HB,Watanabe K,Luo ZP,An KN

更新日期：2006-06-01 00:00:00

abstract：:We present a computer simulation of a two-compartment model of the systemic circulation which demonstrates how this model can be used to understand the mechanism(s) for the maximal exercise cardiac output (Q). The model consists of two parallel vascular channels, the splanchnic channel (all blood draining through the ...

journal_title：Medicine and science in sports and exercise

authors： Green JF,Jackman AP

更新日期：1984-06-01 00:00:00

abstract：PURPOSE:The purpose of this study is to compare the time-frequency characteristic, using nonlinearly scaled wavelets, of the EMG signal as well as the three-dimensional (3D) knee kinematics of female and male elite soccer players performing an unanticipated cutting maneuver. METHODS:Fifteen female and 15 male elite so...

journal_title：Medicine and science in sports and exercise

authors： Beaulieu ML,Lamontagne M,Xu L

更新日期：2008-10-01 00:00:00

abstract：PURPOSE:Fit individuals with metabolic syndrome (MetS) have lower mortality risk compared with less fit counterparts, despite the presence of obesity as a component of the syndrome. To understand the importance of fitness in treating this condition, we examined the association of fitness and fatness with central hemody...

journal_title：Medicine and science in sports and exercise

authors： Ramos JS,Ramos MV,Dalleck LC,Borrani F,Walker KB,Fassett RG,Sharman JE,Coombes JS

更新日期：2016-08-01 00:00:00

abstract：PURPOSE:Blood is a rich source of growth factors that can stimulate fibrocyte migration and help induce neovascular ingrowth. These properties may be able to stimulate a healing response in chronic degeneration of a tendon (tendonosis). The purpose of this study was to assess the biomechanical and histological effects ...

journal_title：Medicine and science in sports and exercise

authors： Taylor MA,Norman TL,Clovis NB,Blaha JD

更新日期：2002-01-01 00:00:00

abstract：:Natural killer (NK) cells are highly influenced by physical exercise. The possible important mechanisms behind exercise-induced changes in NK cell function are cytokines, hyperthermia, and stress hormones, including catecholamines, growth hormone, cortisol, and beta-endorphins. Infusion studies mimicking stress hormon...

journal_title：Medicine and science in sports and exercise

authors： Pedersen BK,Ullum H

更新日期：1994-02-01 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：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 examine the effects of footwear and neuromuscular fatigue induced by short distance trail running (TR) on running economy (RE) and biomechanics in well-trained and traditionally shod runners. METHODS:RE, vertical and leg stiffness (Kvert and Kleg), as well as foot strike angle were measured...

journal_title：Medicine and science in sports and exercise

authors： Vercruyssen F,Tartaruga M,Horvais N,Brisswalter J

更新日期：2016-10-01 00:00:00

abstract：INTRODUCTION:Exogenous ketones potentially provide an alternative, energetically advantageous fuel to power exercising skeletal muscle. However, there is limited evidence regarding their relative contribution to energy expenditure during exercise. Furthermore, the effect of blood ketone concentration and exercise inten...

journal_title：Medicine and science in sports and exercise

authors： Dearlove DJ,Harrison OK,Hodson L,Jefferson A,Clarke K,Cox PJ

更新日期：2020-08-28 00:00:00

abstract：PURPOSE:Patellar tendon abnormality (PTA) on diagnostic imaging is part of the diagnostic criteria for patellar tendinopathy. PTA and altered landing strategies are primary risk factors that increase the likelihood of asymptomatic athletes developing patellar tendinopathy. Therefore, the aim of this study was to examin...

journal_title：Medicine and science in sports and exercise

authors： Mann KJ,Edwards S,Drinkwater EJ,Bird SP

更新日期：2013-03-01 00:00:00

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:This study was designed to compare the differences in EMG and kinematics between successful and unsuccessful attempts in bench pressing at one repetition maximum (1RM) in recreational weight-trained subjects. We hypothesized that failure occurs during the sticking period (the period during which there is a temp...

journal_title：Medicine and science in sports and exercise

authors： van den Tillaar R,Ettema G

更新日期：2009-11-01 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：UNLABELLED:Physically active classroom lessons have been found to increase on-task behavior in children. Given that physical activity has been associated with an increased time on task (TOT) and that overweight children take fewer steps than normal weight children do, it was expected that benefits of the physical activ...

journal_title：Medicine and science in sports and exercise

authors： Grieco LA,Jowers EM,Bartholomew JB

更新日期：2009-10-01 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：PURPOSE:The purpose of this study was to evaluate energy balance and body composition in 42 gymnasts (mean age = 15.5 yr) and 20 runners (mean age = 26.6 yr), all of whom were on national teams or were nationally ranked. METHODS:Athletes were assessed for body composition using DEXA and skinfolds, and energy balance w...

journal_title：Medicine and science in sports and exercise

authors： Deutz RC,Benardot D,Martin DE,Cody MM

更新日期：2000-03-01 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：:In an effort to determine whether chronic physical forearm activity would increase both structural and physiologic indices of peripheral forearm vasodilation, we studied a group (N = 7) of individuals chronically performing high levels of arm work, young wheelchair-confined paraplegics, and compared them with ten youn...

journal_title：Medicine and science in sports and exercise

authors： Shenberger JS,Leaman GJ,Neumyer MM,Musch TI,Sinoway LI

更新日期：1990-02-01 00:00:00

abstract：PURPOSE:Studies have shown that the classical sit-and-reach (CSR) test, the modified sit-and-reach (MSR), and the newly developed back-saver sit-and-reach (BS) test have poor criterion-related validity in estimating low-back flexibility but yielded moderate criterion-related validity in hamstring flexibility. The V sit...

journal_title：Medicine and science in sports and exercise

authors： Hui SS,Yuen PY

更新日期：2000-09-01 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：:The effects of endurance training on tissue antioxidant and oxidative enzyme activities were determined in heart, liver, and five skeletal muscles of female rats. Rats were fed either normal (+E) or vitamin E free (-E) diets for 16 wk. For the final 8 wk, subgroups of +E and -E diet animals were trained by treadmill r...

journal_title：Medicine and science in sports and exercise

authors： Tiidus PM,Houston ME

更新日期：1994-03-01 00:00:00

abstract：PURPOSE:To quantify variations in plantar pressure variables in healthy adults across five cardiovascular exercises. METHODS:Ten young (19-35 yr old) and 10 middle-aged (45-60 yr old) individuals participated. After equipment familiarization, plantar pressure data were recorded during walking, running, elliptical trai...

journal_title：Medicine and science in sports and exercise

authors： Burnfield JM,Jorde AG,Augustin TR,Augustin TA,Bashford GR

更新日期：2007-11-01 00:00:00

abstract：PURPOSE:The objective of this study is to determine the effect of body mass index (BMI) on level of agreement between six previously established prediction equations for three commonly used accelerometers to predict summary measures of energy expenditure (EE) in youth. METHODS:One hundred and thirty-one youth between ...

journal_title：Medicine and science in sports and exercise

authors： Warolin J,Carrico AR,Whitaker LE,Wang L,Chen KY,Acra S,Buchowski MS

更新日期：2012-12-01 00:00:00

abstract：INTRODUCTION:Gastroesophageal reflux disease is a disorder in which gastric contents move from stomach to esophagus. Exercise is a recognized contributing factor to reflux in healthy volunteers and is reported to be proportional to exercise intensity and the type of exercise. Our aim was to explore changes in physiolog...

journal_title：Medicine and science in sports and exercise

authors： Collings KL,Pierce Pratt F,Rodriguez-Stanley S,Bemben M,Miner PB

更新日期：2003-05-01 00:00:00