Reproducibility of endurance performance on a treadmill using a preloaded time trial.

abstract：PURPOSE:Walking is likely to contribute substantially to nonexercise activity thermogenesis. The Tracmor triaxial accelerometer system (Maastricht, The Netherlands) is the most widely validated system for detecting body movement in free-living subjects. The aim of this study was to validate the Tracmor triaxial acceler...

journal_title：Medicine and science in sports and exercise

authors： Levine JA,Baukol PA,Westerterp KR

更新日期：2001-09-01 00:00:00

abstract：PURPOSE:Compare physical activity intensity in older adults with type 2 diabetes mellitus (T2DM) using individualized, relative cutpoints with standard, absolute cutpoints. METHODS:One hundred older adults with T2DM (68.9 ± 5.1 yr, 65% male, 32.7 ± 6.3 kg·m, 7.2% ± 1.1% glycosylated hemoglobin) completed a two-speed w...

journal_title：Medicine and science in sports and exercise

authors： Welch WA,Alexander NB,Swartz AM,Miller NE,Twardzik E,Strath SJ

更新日期：2017-11-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare the predictive accuracy of previously published skinfold (SKF) equations for estimating body density of 134 premenopausal African-American women (18 to 40 yr). METHODS:The equations cross-validated were: the sum of seven skinfolds equation (JPW7) and the sum of three sk...

journal_title：Medicine and science in sports and exercise

authors： Irwin ML,Ainsworth BE,Stolarczyk LM,Heyward VH

更新日期：1998-11-01 00:00:00

abstract：PURPOSE:To investigate the use of Tritrac accelerometers to measure energy expenditure (EE) of various activities for women in the field setting, as compared with portable indirect calorimetry. METHODS:Twenty women (age 20-29) performed a choreographed routine of six activities (walking, jogging, stair climbing, walki...

journal_title：Medicine and science in sports and exercise

authors： Campbell KL,Crocker PR,McKenzie DC

更新日期：2002-10-01 00:00:00

abstract：:The downswing phase in golf was represented as a double pendulum pivoted at the shoulder joint and hinged at the wrist. The motion of such a pendulum was used to derive a series of equations which were used to describe the instantaneous values of several of the component features of the downswing. Results of this anal...

journal_title：Medicine and science in sports and exercise

authors： Milburn PD

更新日期：1982-01-01 00:00:00

abstract：PURPOSE:The aim was to determine the feasibility of a 6-wk speed-based exercise program that could be used to initiate new exercise behaviors and to improve rapid movement in older adults approaching frailty. METHODS:The intervention group included 14 older adults (3 males and 11 females; mean ± SD, age = 70 ± 7.6 yr,...

journal_title：Medicine and science in sports and exercise

authors： Bellumori M,Uygur M,Knight CA

更新日期：2017-01-01 00:00:00

abstract：:In embryonic chicken skeletal muscle, the presence of a ventricular myosin heavy chain (MHC) is demonstrated by reactivity with an anti-ventricular MHC antibody. Developmental repression of the ventricular MHC expression occurs earlier in embryonic fast twitch posterior latissimus dorsi (PLD) than in embryonic slow-to...

journal_title：Medicine and science in sports and exercise

authors： Kennedy JM,Sweeney LJ,Gao LZ

更新日期：1989-10-01 00:00:00

abstract：PURPOSE:The objective of this study is to determine whether individuals with type 1 diabetes exhibit impairments in local and whole-body heat loss responses that could affect core temperature regulation during exercise in the heat compared with matched, nondiabetic individuals. METHODS:Twelve otherwise healthy individ...

journal_title：Medicine and science in sports and exercise

authors： Stapleton JM,Yardley JE,Boulay P,Sigal RJ,Kenny GP

更新日期：2013-09-01 00:00:00

abstract：PURPOSE:To examine whether knowledge of the 1995 Centers for Disease Control and Prevention (CDC) and the American College of Sports Medicine (ACSM) national physical activity recommendations varies by sociodemographic, behavioral, and communication-related factors. METHODS:Cross-sectional analyses of 2381 participant...

journal_title：Medicine and science in sports and exercise

authors： Bennett GG,Wolin KY,Puleo EM,Mâsse LC,Atienza AA

更新日期：2009-10-01 00:00:00

abstract：:Fatigue can be defined as the failure to maintain an expected power output. This is often an antecedent to some sports-related injury. It is important for those involved in physical performance to be familiar with the variety of mechanisms which can lead to fatigue. All too often, a single factor is described as the c...

journal_title：Medicine and science in sports and exercise

authors： Kirkendall DT

更新日期：1990-08-01 00:00:00

abstract：PURPOSE:This study aimed to test whether incident kidney cancer risk is associated with exercise energy expenditure (i.e., metabolic equivalents, 1 MET) when calculated from distance walked or run. METHODS:Hazard ratios (HR) and 95% confidence intervals (95% CI) from Cox proportional hazard analyses of self-reported p...

journal_title：Medicine and science in sports and exercise

authors： Williams PT

更新日期：2014-02-01 00:00:00

abstract：:The ventilatory threshold (VT) has been suggested as a method for determining exercise training intensity in cardiac transplant patients (CTPs). Since the VT has not been validated against the more accepted marker of the anaerobic threshold, the lactate threshold (LT), in CTPs, the purpose of this investigation was to...

journal_title：Medicine and science in sports and exercise

authors： Brubaker PH,Berry MJ,Brozena SC,Morley DL,Walter JD,Paolone AM,Bove AA

更新日期：1993-02-01 00:00:00

abstract：PURPOSE:Physical exercise or hypoxic exposure influences hemorheology and acid-base homeostasis. Band 3 protein in erythrocytes modulates cells' rheological properties and anion transport ability. This study investigated how cycling aerobic interval training (AIT) and moderate continuous training (MCT) affect the rheol...

journal_title：Medicine and science in sports and exercise

authors： Chou SL,Huang YC,Fu TC,Hsu CC,Wang JS

更新日期：2016-01-01 00:00:00

abstract：PURPOSE:This study was designed to determine changes in metabolic and cardiovascular risk factors following normobaric hypoxic exercise training in healthy men. METHODS:Following a randomized baseline maximal exercise test in hypoxia and/or normoxia, 34 physically active subjects were randomly assigned to either a nor...

journal_title：Medicine and science in sports and exercise

authors： Bailey DM,Davies B,Baker J

更新日期：2000-06-01 00:00:00

abstract：PURPOSE:To examine whether normalized quadriceps and hamstring strength would predict quadriceps and hamstring muscle activation amplitudes and whether these neuromuscular factors would predict knee kinematics and kinetics during a drop jump task. METHODS:Thirty-nine females and 39 males were measured for isometric qu...

journal_title：Medicine and science in sports and exercise

authors： Shultz SJ,Nguyen AD,Leonard MD,Schmitz RJ

更新日期：2009-04-01 00:00:00

abstract：PURPOSE:To describe the level of usage of protective devices and equipment in a cohort of New Zealand rugby players. METHODS:Male and female players (N = 327) from a range of competitive grades were followed over the course of the season. Participants were interviewed weekly about their participation in rugby and use ...

journal_title：Medicine and science in sports and exercise

authors： Marshall SW,Waller AE,Loomis DP,Feehan M,Chalmers DJ,Bird YN,Quarrie KL

更新日期：2001-12-01 00:00:00

abstract：:Physical inactivity has been linked to rates of obesity, diabetes, and heart disease through insulin resistance and other mechanisms. Although sedentary workplace environments have unintentionally contributed to the risk for chronic diseases, innovations in the workplace environment could potentially rectify this publ...

journal_title：Medicine and science in sports and exercise

authors： Han HO,Lim J,Viskochil R,Aguiar EJ,Tudor-Locke C,Chipkin SR

更新日期：2018-10-01 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：UNLABELLED:It is often reported that females lose less body weight than males do in response to exercise. These differences are suggested to be a result of females exhibiting a stronger defense of body fat and a greater compensatory appetite response to exercise than males do. PURPOSE:This study aimed to compare the e...

journal_title：Medicine and science in sports and exercise

authors： Caudwell P,Gibbons C,Hopkins M,King N,Finlayson G,Blundell J

更新日期：2013-02-01 00:00:00

abstract：PURPOSE:The purpose of this study is to examine whether performance supercompensation during taper is maximized in endurance athletes after experiencing overreaching during an overload training (OT) period. METHODS:Thirty-three trained male triathletes were assigned to either OT (n = 23) or normal training groups (n =...

journal_title：Medicine and science in sports and exercise

authors： Aubry A,Hausswirth C,Louis J,Coutts AJ,LE Meur Y

更新日期：2014-09-01 00:00:00

abstract：PURPOSE:Physiological and perceptual measures during interval exercise are not well understood. The current study therefore examined the correspondence between RPE, HR, and blood lactate concentration ([La]) during interval cycling. METHODS:VO2peak and the 4.0 mmol x L(-1) lactate threshold were determined. In session...

journal_title：Medicine and science in sports and exercise

authors： Green JM,McLester JR,Crews TR,Wickwire PJ,Pritchett RC,Lomax RG

更新日期：2006-01-01 00:00:00

abstract：:The way in which athletes achieve the necessary height to accomplish the rotational requirements of springboard dives was investigated by focusing upon the take-offs of dives from the forward and reverse groups. Films of eight women in the 3-m final of the 1982 Canadian championship and of five men practicing for the ...

journal_title：Medicine and science in sports and exercise

authors： Miller DI,Munro CF

更新日期：1984-06-01 00:00:00

abstract：PURPOSE:The purpose of this investigation was to present an alternative paradigm to that of dividing the rate of oxygen consumption by body mass (VO2.M-1, mL.min-1kg-1) for comparing walking economy in humans. METHODS:The paradigm used dimensional analysis and similarity theory to derive a measure of size-independent ...

journal_title：Medicine and science in sports and exercise

authors： McCann DJ,Adams WC

更新日期：2002-06-01 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：PURPOSE:Despite endorsement by various health organizations, there is a lack of research on the effectiveness of perceptually regulated exercise training (PRET) as a method of exercise intensity prescription. The purpose of this study was to confirm the efficacy of an 8-wk PRET program clamped at RPE13 to improve aerob...

journal_title：Medicine and science in sports and exercise

authors： Parfitt G,Evans H,Eston R

更新日期：2012-08-01 00:00:00

abstract：PURPOSE:To observe the effects of exercise training on plasminogen activator inhibitor, type-1 (PAI-1), tissue plasminogen activator (tPA), and associated metabolic variables in sedentary men and women. METHODS:A randomized, controlled experimental design was used to examine the influence of 10 d of moderate-intensity...

journal_title：Medicine and science in sports and exercise

authors： Bodary PF,Yasuda N,Watson DD,Brown AS,Davis JM,Pate RR

更新日期：2003-11-01 00:00:00

abstract：PURPOSE:Heart transplant recipients (HTx) have a high prevalence of hypertension. Although exercise training promotes blood pressure (BP) reduction in HTx, the effects of a single exercise bout are unknown. Thus, we analyzed the acute effects of heated water-based exercise (HEx) versus land-based exercise (LEx) on ambu...

journal_title：Medicine and science in sports and exercise

authors： Castro RE,Guimarães GV,Da Silva JM,Bocchi EA,Ciolac EG

更新日期：2016-05-01 00:00:00

abstract：:Bicycling is a complex sport in which an athlete's energy cost is related to two principal forces: air resistance when traveling on flat terrain, and gravity when traveling uphill. Both wind tunnel data and physiological measurements suggest that air resistance scales as body mass to about the 1/3 power. Thus, large c...

journal_title：Medicine and science in sports and exercise

authors： Swain DP

更新日期：1994-01-01 00:00:00

abstract：PURPOSE:This study was conducted to determine the effect of high pedaling cadences on maximal cycling power output (W(max)). METHODS:Nine well-trained cyclists performed a continuous, incremental cycle-ergometer test to exhaustion (25 W increases every 3 min) either at 80, 100, or 120 rpm on three different occasions....

journal_title：Medicine and science in sports and exercise

authors： Mora-Rodriguez R,Aguado-Jimenez R

更新日期：2006-05-01 00:00:00

abstract：:Ingestion of fluids providing carbohydrate and electrolytes extends endurance times during prolonged exercise. To understand the contribution of these factors, we examined hormonal, physiologic, and metabolic responses to ingesting water (W) or a 7% glucose polymer/fructose/electrolyte solution (GPFE) in 10 men (age: ...

journal_title：Medicine and science in sports and exercise

authors： Deuster PA,Singh A,Hofmann A,Moses FM,Chrousos GC

更新日期：1992-01-01 00:00:00