Physiology of sedentary behavior and its relationship to health outcomes.

abstract：:A group of 103 female weight lifters (WL) and 92 control (C) women answered a survey concerning eating behavior and attitudes (including the Eating Disorder Inventory) and menstrual function. The incidence of menstrual dysfunction, defined as oligomenorrhea plus amenorrhea, was significantly higher for the WL (30%) th...

journal_title：Medicine and science in sports and exercise

authors： Walberg JL,Johnston CS

更新日期：1991-01-01 00:00:00

abstract：:Parasympathetic receptor blockade and the heart rate performance curve. Med. Sci Sports Sci., Vol. 30. No. 2, pp. 229-233, 1998. The aim of the present study was to investigate the influence of parasympathetic receptor blockade on the heart rate performance curve (HRPC). Twenty healthy male subjects performed a first ...

journal_title：Medicine and science in sports and exercise

authors： Pokan R,Hofmann P,Von Duvillard SP,Schumacher M,Gasser R,Zweiker R,Fruhwald FM,Eber B,Smekal G,Bachl N,Schmid P

更新日期：1998-02-01 00:00:00

abstract：PURPOSE:To measure the influence of vitamin E ingestion on oxidative stress and immune changes in response to the Triathlon World Championship in Kona, Hawaii. METHODS:Thirty-eight triathletes received vitamin E (VitE) (800 IU x d(-1) alpha-tocopherol) or placebo (Pla) capsules in randomized, double-blind fashion for ...

journal_title：Medicine and science in sports and exercise

authors： Nieman DC,Henson DA,McAnulty SR,McAnulty LS,Morrow JD,Ahmed A,Heward CB

更新日期：2004-08-01 00:00:00

abstract：PURPOSE:Unilateral strength training strengthens not only the muscles on the trained side but also the homologous muscles on the untrained side; however, the magnitude of this interlimb cross-education is modest. We tested the hypothesis that heightened sensory feedback by mirror viewing the exercising hand would augme...

journal_title：Medicine and science in sports and exercise

authors： Zult T,Goodall S,Thomas K,Solnik S,Hortobágyi T,Howatson G

更新日期：2016-06-01 00:00:00

abstract：PURPOSE:The purpose of this investigation was to evaluate the accuracy of a new air displacement plethysmograph, BOD POD Body Composition System, for determining %fat in collegiate football players. METHODS:Body fatness was estimated from body density (Db), which was measured on the same day using the BOD POD and hydr...

journal_title：Medicine and science in sports and exercise

authors： Collins MA,Millard-Stafford ML,Sparling PB,Snow TK,Rosskopf LB,Webb SA,Omer J

更新日期：1999-09-01 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: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：UNLABELLED:This study examined the relationship of heart rate reserve (HRR: maximal heart rate - resting heart rate) and cardiovascular disease mortality (CVD) or all-cause mortality among healthy men. METHODS:Subjects were 27,459 healthy men, age 20-59 yr, who completed a maximal treadmill exercise test and answered ...

journal_title：Medicine and science in sports and exercise

authors： Cheng YJ,Macera CA,Church TS,Blair SN

更新日期：2002-12-01 00:00:00

abstract：:The purpose of this study was to determine whether competitive and recreational runners would replicate land training intensity during water immersion (WI) running with (V) and without (NV) a flotation vest and during treadmill running (Tm). Seven female competitive runners (CR) and seven female noncompetitive runners...

journal_title：Medicine and science in sports and exercise

authors： Gehring MM,Keller BA,Brehm BA

更新日期：1997-10-01 00:00:00

abstract：INTRODUCTION:It is well established that regular physical activity (PA) contributes to lower levels of morbidity and mortality. However, little is known about the stability of very young children's PA habits across seasons and years. The aims of this study were to 1) examine the influence of season and increasing age o...

journal_title：Medicine and science in sports and exercise

authors： McKee DP,Murtagh EM,Boreham CA,Nevill AM,Murphy MH

更新日期：2012-07-01 00:00:00

abstract：:Heavy whole-body exercise, requiring a 10- to 15-fold increase in minute ventilation, encroaches on the capacities of the respiratory muscle system to respond. Recently, using the technique of bilateral phrenic nerve stimulation, it has been shown that heavy endurance exercise (> 85% of VO2max) lasting > 8-10 min caus...

journal_title：Medicine and science in sports and exercise

authors： Johnson BD,Aaron EA,Babcock MA,Dempsey JA

更新日期：1996-09-01 00:00:00

abstract：UNLABELLED:Nampt/pre-B-cell colony-enhancing factor/visfatin (visfatin) release from adipocytes has recently been suggested to be nutrient responsive and linked to systemic nicotinamide adenine dinucleotide biosynthesis and regulation of pancreatic beta-cell function. PURPOSE:We hypothesized that if visfatin does play...

journal_title：Medicine and science in sports and exercise

authors： Haus JM,Solomon TP,Marchetti CM,O'Leary VB,Brooks LM,Gonzalez F,Kirwan JP

更新日期：2009-06-01 00:00:00

abstract：BACKGROUND:Stress fracture (SF) injuries in new recruits have long been attributed to low bone mineral density (BMD). Low areal BMD assessed using two-dimensional dual-energy x-ray absorptiometry imaging, however, reflects structural density and is affected by smaller measures of bone geometry. Recent studies support a...

journal_title：Medicine and science in sports and exercise

authors： Evans RK,Negus C,Antczak AJ,Yanovich R,Israeli E,Moran DS

更新日期：2008-11-01 00:00:00

abstract：PURPOSE:To develop and provide initial psychometric support for a 16-item measure that assesses a new construct termed desire for physical competence (DPC). METHODS:A total of 157 older adults (aged 60-95) were administered the DPC along with various other questionnaires that assessed demographics, health status, soci...

journal_title：Medicine and science in sports and exercise

authors： Rejeski WJ,Ip EH,Katula JA,White L

更新日期：2006-01-01 00:00:00

abstract：PURPOSE:Maternal obesity is known to predispose the offspring to impaired glucose metabolism and obesity associated with low-grade inflammation and hypothalamic dysfunction. Because preventive approaches in this context are missing to date, we aimed to identify molecular mechanisms in the offspring that are affected by...

journal_title：Medicine and science in sports and exercise

authors： Bae-Gartz I,Janoschek R,Kloppe CS,Vohlen C,Roels F,Oberthür A,Alejandre Alcazar MA,Lippach G,Muether PS,Dinger K,Ferrari N,Graf C,Dötsch J,Hucklenbruch-Rother E

更新日期：2016-05-01 00:00:00

abstract：PURPOSE:Aerobic exercise training in sedentary individuals improves physical fitness and various cardiovascular (CV) biomarkers. Nevertheless, there has been controversy as to whether exercise training may adversely affect some biomarkers in a small segment of the population. The purpose of this study was to investigat...

journal_title：Medicine and science in sports and exercise

authors： Leifer ES,Mikus CR,Karavirta L,Resnick BD,Kraus WE,Häkkinen K,Earnest CP,Fleg JL

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:Cardiopulmonary exercise testing (CPX) provides valuable clinical information, including peak ventilation (V˙Epeak), which has been shown to have diagnostic and prognostic value in the assessment of patients with underlying pulmonary disease. This report provides reference standards for V˙Epeak derived from CPX...

journal_title：Medicine and science in sports and exercise

authors： Kaminsky LA,Harber MP,Imboden MT,Arena R,Myers J

更新日期：2018-12-01 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

abstract：INTRODUCTION/PURPOSE:The goal of this program was to determine the feasibility of a novel noninvasive, highly miniaturized optomechanical earbud sensor for accurately estimating total energy expenditure (TEE) and maximum oxygen consumption (VO2max). The optomechanical sensor module, small enough to fit inside commercia...

journal_title：Medicine and science in sports and exercise

authors： Leboeuf SF,Aumer ME,Kraus WE,Johnson JL,Duscha B

更新日期：2014-01-01 00:00:00

abstract：:To investigate the possible role of elastic potentiation on mechanical efficiency, three male marathon runners were filmed while running on a treadmill at various steady-state speeds ranging from 7.0-22.0 km X h-1. Kinematic and mechanical energy analyses were performed from the film. Expired air was collected for ene...

journal_title：Medicine and science in sports and exercise

authors： Ito A,Komi PV,Sjödin B,Bosco C,Karlsson J

更新日期：1983-01-01 00:00:00

abstract：PURPOSE:The purposes of this study were 1) to add layers and features to a previously published fully automated algorithm designed to identify children's nocturnal sleep and to exclude episodes of nighttime nonwear/wakefulness and potentially misclassified daytime sleep episodes and 2) to validate this refined sleep al...

journal_title：Medicine and science in sports and exercise

authors： Barreira TV,Schuna JM Jr,Mire EF,Katzmarzyk PT,Chaput JP,Leduc G,Tudor-Locke C

更新日期：2015-05-01 00:00:00

abstract：PURPOSE:Stress-induced cardiovascular reactivity is associated with the pathogenesis of cardiovascular disease. This study tested whether a simulated active commute to school dampened cardiovascular reactivity to a cognitive stressor typical to what children might experience during school. METHODS:Forty children (20 g...

journal_title：Medicine and science in sports and exercise

authors： Lambiase MJ,Barry HM,Roemmich JN

更新日期：2010-08-01 00:00:00

abstract：PURPOSE:Type 2 diabetes is associated with increased risk of cardiovascular disease and elevated C-reactive protein (CRP) levels. Aerobic exercise training has been shown to improve CRP; however, there are limited data evaluating the effect of other exercise training modalities (aerobic, resistance, or combination trai...

journal_title：Medicine and science in sports and exercise

authors： Swift DL,Johannsen NM,Earnest CP,Blair SN,Church TS

更新日期：2012-06-01 00:00:00

abstract：PURPOSE:For most people, the benefits of physical activity far outweigh the risks. Research has suggested that exercise preparticipation questionnaires might refer an unwarranted number of adults for medical evaluation before exercise initiation, creating a potential barrier to adoption. The new American College of Spo...

journal_title：Medicine and science in sports and exercise

authors： Whitfield GP,Riebe D,Magal M,Liguori G

更新日期：2017-10-01 00:00:00

abstract：PURPOSE:We investigated the knee-extensor torque at which reoxygenation (inflow of arterial blood) during an isometric contraction stopped, whether this torque depended on maximal torque capacity (MTC), and whether there were differences among the synergists. METHODS:Isometric knee-extension torque was measured using ...

journal_title：Medicine and science in sports and exercise

authors： de Ruiter CJ,Goudsmit JF,Van Tricht JA,de Haan A

更新日期：2007-03-01 00:00:00

abstract：:We hypothesized that the structure of systemic arteries would be altered following 10-14 wk of hindlimb unloading (tail suspension) in female Sprague-Dawley rats. Tail suspension resulted in atrophy of the soleus muscle (P < or = 0.01) but no significant differences in the mass of the extensor digitorum muscle, heart,...

journal_title：Medicine and science in sports and exercise

authors： Chew HG Jr,Segal SS

更新日期：1997-10-01 00:00:00

abstract：PURPOSE:Arterial distensibility decreases with age. This decrease may be associated with the initiation and/or progression of hypertension and atherosclerosis and may be attenuated by positive lifestyle habits, including habitual physical activity. We tested the hypothesis that self-reported sport, leisure, and work ph...

journal_title：Medicine and science in sports and exercise

authors： Schmitz KH,Arnett DK,Bank A,Liao D,Evans GW,Evenson KR,Stevens J,Sorlie P,Folsom AR

更新日期：2001-12-01 00:00:00

abstract：PURPOSE:beta2 adrenergic agonists are widely used as doping agents. Their side effects on bone, especially microarchitecture, remain unknown. The purpose of this study was to evaluate the effects of chronic clenbuterol and salbutamol treatment on bones of growing rats. METHODS:Twelve-week-old Wistar female rats were d...

journal_title：Medicine and science in sports and exercise

authors： Bonnet N,Brunet-Imbault B,Arlettaz A,Horcajada MN,Collomp K,Benhamou CL,Courteix D

更新日期：2005-09-01 00:00:00

abstract：PURPOSE:One approach to studying the effects of aging on physiological functional capacity (PFC) in humans is to analyze the peak physical performance of trained athletes with increasing age. The primary aim of the present study was to determine weightlifting and powerlifting performance with increasing age in both men...

journal_title：Medicine and science in sports and exercise

authors： Anton MM,Spirduso WW,Tanaka H

更新日期：2004-01-01 00:00:00

abstract：:In a cross-sectional study using a two-stage probability sample (N = 1,600) of the population of Northern Ireland, there was an inverse association between the highest recorded recent activity and total cholesterol (P < or = 0.01), LDL (P < or = 0.01), triglyceride (P < or = 0.05) and Chol:HDL ratio (P < or = 0.001) i...

journal_title：Medicine and science in sports and exercise

authors： MacAuley D,McCrum EE,Stott G,Evans AE,Duly E,Trinick T,Sweeney K,Boreham CA

更新日期：1996-06-01 00:00:00