A mathematical method to estimate body composition in tall individuals using DXA.

abstract：:Body composition has become a major field of interest for many exercise and sport scientists as well as clinicians who specialize in the prevention of and rehabilitation from hypokinetic diseases. This paper discusses the state of the art within selected areas of body composition, identifying significant areas of cont...

journal_title：Medicine and science in sports and exercise

authors： Wilmore JH

更新日期：1983-01-01 00:00:00

abstract：PURPOSE:The purpose of the study was to explore the utility of school- and county-level variables in explaining variability in children and adolescent body mass index (BMI). METHODS:BMI data from nearly 2.5 million of children and adolescents were aggregated at the school level from more than 5000 schools in Texas. Sc...

journal_title：Medicine and science in sports and exercise

authors： Bai Y,Welk GJ

更新日期：2017-09-01 00:00:00

abstract：PURPOSE:Isokinetic strength is normally measured for a single range of motion and body position. This study quantified the variability, between individuals, in the relationships between a single peak knee extension moment and the isokinetic extension moments measured for different hip angles and ranges of knee motion. ...

journal_title：Medicine and science in sports and exercise

authors： Pavol MJ,Grabiner MD

更新日期：2000-05-01 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:We performed two experiments to determine whether cutaneous microvascular adaptations in response to repeated core temperature (Tc) elevation are mediated by increases in skin blood flow (SkBF) and/or skin temperature. METHODS:Healthy subjects participated for 8 wk in thrice-weekly bouts of 30-min lower limb h...

journal_title：Medicine and science in sports and exercise

authors： Carter HH,Spence AL,Atkinson CL,Pugh CJ,Cable NT,Thijssen DH,Naylor LH,Green DJ

更新日期：2014-11-01 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：PURPOSE:The midfoot is instrumental to foot function; however, quantifying its roles in human movement has been difficult. A forceful dynamic activity like landing may help elucidate the midfoot's contribution to foot energetics and function. The main purpose of this study was to measure midtarsal joint kinematics and ...

journal_title：Medicine and science in sports and exercise

authors： Olsen MT,Bruening DA,Johnson AW,Ridge ST

更新日期：2019-01-01 00:00:00

abstract：UNLABELLED:Although effects of workload and cadence on sagittal plane knee biomechanics in cycling have been widely studied, few studies have examined their impact on the frontal plane. PURPOSE:The purpose of this study was to investigate the effects of different workloads and cadences on knee sagittal and frontal pla...

journal_title：Medicine and science in sports and exercise

authors： Fang Y,Fitzhugh EC,Crouter SE,Gardner JK,Zhang S

更新日期：2016-02-01 00:00:00

abstract：INTRODUCTION:Scientists and clinicians have attempted to identify and understand biomechanical factors that influence concussion likelihood. The effect of impact frequency to a given head location before the concussion has not been evaluated. The purpose of this study was to compare the frequency of impacts to a given ...

journal_title：Medicine and science in sports and exercise

authors： Liao S,Lynall RC,Mihalik JP

更新日期：2016-07-01 00:00:00

abstract：:Canine skeletal muscle preparations in situ contain varying mixtures of fast and slow fatigue resistant fibers. All vessels on the arterial side of the vascular bed in these preparations from the conduit arteries to the arterioles contribute to the vascular resistance. The vascular beds autoregulate at rest and during...

journal_title：Medicine and science in sports and exercise

authors： Barclay JK

更新日期：1988-10-01 00:00:00

abstract：PURPOSE:Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics is frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee...

journal_title：Medicine and science in sports and exercise

authors： Hart HF,Crossley KM,Collins NJ,Ackland DC

更新日期：2017-06-01 00:00:00

abstract：PURPOSE:We investigated ethnic differences in areal bone mineral density (aBMD; g x cm(-2)) and its determinants at two levels of maturity in Asian- and Caucasian-Canadian girls. METHODS:Participants were 131 Asian (26 Tanner breast stage I (aTI) and 30 Tanner II (aTII)), and Caucasian (30 Tanner I (cTI) and 45 Tanner...

journal_title：Medicine and science in sports and exercise

authors： Mackelvie KJ,McKay HA,Khan KM,Crocker PR

更新日期：2001-11-01 00:00:00

abstract：:Ten experienced weight lifters were studied to determine the influence of strenuous, free-weight, squat lift exercise on changes in plasma volume, mean arterial pressure, and the rate pressure product. After a 40-min postural adjustment prior to upright exercise, each subject completed eight sets of eight repetitions ...

journal_title：Medicine and science in sports and exercise

authors： Knowlton RG,Hetzler RK,Kaminsky LA,Morrison JJ

更新日期：1987-10-01 00:00:00

abstract：PURPOSE:This study determined the effects of a single session of heavy-resistance exercise on myosin heavy-chain (MHC) mRNA expression, along with the expression of the transcription factors Myo-D, myogenin, and Id-1. METHODS:Four male subjects participated in a control group (CON) and seven in a resistance-exercise g...

journal_title：Medicine and science in sports and exercise

authors： Willoughby DS,Nelson MJ

更新日期：2002-08-01 00:00:00

abstract：:This study investigates the utility of two equations for predicting minimum wrestling weight and three equations for predicting body density for the population of high school wrestlers. A sample of 54 wrestlers was assessed for body density by underwater weighing, residual volume by helium dilution, and selected anthr...

journal_title：Medicine and science in sports and exercise

authors： Williford HN,Smith JF,Mansfield ER,Conerly MD,Bishop PA

更新日期：1986-04-01 00:00:00

abstract：PURPOSE:Hyperventilation increases the clearance of carbon monoxide (CO) from blood; thus, we hypothesized that CO elimination would be enhanced with exercise. Accordingly, this study examined the effect of exercise on the half-life of carboxyhemolobin elimination. METHODS:Six healthy subjects (three males and three f...

journal_title：Medicine and science in sports and exercise

authors： Zavorsky GS,Smoliga JM,Longo LD,Uhranowsky KA,Cadman CR,Duffin J,Fisher JA

更新日期：2012-11-01 00:00:00

abstract：PURPOSE:To compare the classic physiological variables linked to endurance performance (VO2max, %VO2max at lactate threshold (LT), and running economy (RE)) with peak treadmill velocity (PTV) as predictors of performance in a 16-km time trial. METHODS:Seventeen healthy, well-trained distance runners (10 males and 7 fe...

journal_title：Medicine and science in sports and exercise

authors： McLaughlin JE,Howley ET,Bassett DR Jr,Thompson DL,Fitzhugh EC

更新日期：2010-05-01 00:00:00

abstract：:Six adult females with normal menstrual cycles (28-31 d in length) volunteered to exercise on a bicycle ergometer on five different days of their menstrual cycles (days 2, 8, 14, 20, and 26; day 1 = onset of menstruation). Each day the subjects exercised at a maximum work load (184.4 W) and at four submaximal exercise...

journal_title：Medicine and science in sports and exercise

authors： Stephenson LA,Kolka MA,Wilkerson JE

更新日期：1982-01-01 00:00:00

abstract：:Facial cooling (FC) elicits a marked bradycardia at rest that appears to be reduced during exercise. This study was done to delineate the effects of exercise mediated central command from those of muscle afferent feedback and sympathetic stimulation on the attenuation of the bradycardic effect of FC during the onset o...

journal_title：Medicine and science in sports and exercise

authors： Smith JC,Stephens DP,Winchester PK,Williamson JW

更新日期：1997-03-01 00:00:00

abstract：INTRODUCTION:The quadriceps avoidance gait pattern may not be as common in ACL deficient (ACLd) gait as previously described. PURPOSE:The purpose of this study was to investigate the existence of the quadriceps avoidance pattern in ACL deficient patients and to further identify gait compensations that may exist in thi...

journal_title：Medicine and science in sports and exercise

authors： Torry MR,Decker MJ,Ellis HB,Shelburne KB,Sterett WI,Steadman JR

更新日期：2004-08-01 00:00:00

abstract：PURPOSE:We asked whether submaximal exercise with chest wall restriction (CWR), as a model of restrictive pulmonary disease, would result in fatigue of the diaphragm in healthy humans. METHODS:To address this question, we used cervical magnetic stimulation of the phrenic nerves along with measures of transdiaphragmati...

journal_title：Medicine and science in sports and exercise

authors： Tomczak SE,Guenette JA,Reid WD,McKenzie DC,Sheel AW

更新日期：2011-03-01 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：UNLABELLED:Two recently identified glucose transporters, GLUT8 and GLUT12, are expressed in human skeletal muscle and may be involved in insulin-mediated sugar transport. PURPOSE:The purpose of this study was to measure GLUT8 and GLUT12 mRNA levels in endurance-trained versus sedentary individuals in an effort to dete...

journal_title：Medicine and science in sports and exercise

authors： Seki Y,Berggren JR,Houmard JA,Charron MJ

更新日期：2006-06-01 00:00:00

abstract：:It has been suggested that television watching and physical activity are related to obesity. This association, however, has been investigated mainly in children. This study provided the opportunity to examine the relationship between television watching, physical activity, and body mass index in adult Pima Indians, a ...

journal_title：Medicine and science in sports and exercise

authors： Fitzgerald SJ,Kriska AM,Pereira MA,de Courten MP

更新日期：1997-07-01 00:00:00

abstract：PURPOSE:We investigated the development and recovery of peripheral and central fatigue during repeated cycling sprints and its influence on power output. METHODS:On six separate days, 12 healthy males performed the following tests: 1, 4, 6, 8, and 10 × 10 s sprints with 30 s of passive recovery between sprints, as wel...

journal_title：Medicine and science in sports and exercise

authors： Hureau TJ,Ducrocq GP,Blain GM

更新日期：2016-03-01 00:00:00

abstract：INTRODUCTION/PURPOSE:Evidence suggests that carbohydrate and protein (CHO-PRO) ingestion after exercise enhances muscle glycogen repletion to a greater extent than carbohydrate (CHO) alone. However, there is no consensus at this point, and results across studies are mixed, which may be attributable to differences in en...

journal_title：Medicine and science in sports and exercise

authors： Margolis LM,Allen JT,Hatch-McChesney A,Pasiakos SM

更新日期：2021-02-01 00:00:00

abstract：PURPOSE:The purpose of this study was to investigate the vibrotactile detection thresholds of the plantar cutaneous afferents in subjects with chronic ankle instability compared with healthy control subjects. METHODS:Eight adults with chronic ankle instability and eight adults with no ankle sprain history participated...

journal_title：Medicine and science in sports and exercise

authors： Hoch MC,McKeon PO,Andreatta RD

更新日期：2012-04-01 00:00:00

abstract：PURPOSE:To examine the effect of pelvic stabilization and two lower-limb configurations on the EMG activity of back and hip extensor muscles during a dynamic back extension exercise on a machine and to compare them between sexes. METHODS:Twenty-two healthy volunteers (11 men and 11 women) performed five trunk flexion-...

journal_title：Medicine and science in sports and exercise

authors： da Silva RA,Larivière C,Arsenault AB,Nadeau S,Plamondon A

更新日期：2009-02-01 00:00:00

abstract：PURPOSE:Although independent relationships between sitting behaviors (mainly television viewing) and health outcomes have been reported, few studies have examined the measurement properties of self-report sitting questions. This study assessed gender-specific test-retest reliability and validity of a questionnaire that...

journal_title：Medicine and science in sports and exercise

authors： Marshall AL,Miller YD,Burton NW,Brown WJ

更新日期：2010-06-01 00:00:00

abstract：:Psychological consequences of exercise deprivation in habitual exercisers. The purpose of this investigation was to evaluate the influence of 3 d of exercise deprivation on selected psychological variables. Ten volunteers (4 female and 6 male) who regularly exercised 6-7 d.wk-1 for at least 45 min at a time participat...

journal_title：Medicine and science in sports and exercise

authors： Mondin GW,Morgan WP,Piering PN,Stegner AJ,Stotesbery CL,Trine MR,Wu MY

更新日期：1996-09-01 00:00:00