Response of the myocardium to exercise: sex-specific regulation of hsp70.

abstract：PURPOSE:This study aimed to examine the associations of physical activity and cardiorespiratory fitness (hereafter fitness) with incident glaucoma in a prospective observational study. METHODS:Physical activity was measured by self-reported leisure-time activities, and fitness was measured by maximal treadmill test. I...

journal_title：Medicine and science in sports and exercise

authors： Meier NF,Lee DC,Sui X,Blair SN

更新日期：2018-11-01 00:00:00

abstract：:To study the physiological responses to walking with hand-held weights (HWs), 12 untrained men completed three sub-maximal and two maximal treadmill tests. Heart rate, oxygen uptake, respiratory exchange ratio, ventilation, systolic blood pressure (BP), diastolic BP, rate pressure product, and rating of perceived exer...

journal_title：Medicine and science in sports and exercise

authors： Graves JE,Pollock ML,Montain SJ,Jackson AS,O'Keefe JM

更新日期：1987-06-01 00:00:00

abstract：:The association between increasing age and decreasing vagal modulation is well known. However, the importance of fitness as a determinant of the decline in vagal modulation with age is not established. To test the hypothesis that decreasing vagal modulation is largely a function of declining fitness rather than increa...

journal_title：Medicine and science in sports and exercise

authors： Goldsmith RL,Bigger JT Jr,Bloomfield DM,Steinman RC

更新日期：1997-06-01 00:00:00

abstract：:The aim of this study was to determine the energy expenditure of a 1-h noncontact boxing training session and to compare these results with the energy expenditure of a more conventional recreational activity such as running. Eight healthy males, accustomed to noncontact boxing training, were recruited for the study. S...

journal_title：Medicine and science in sports and exercise

authors： Bellinger B,St Clair Gibson A,Oelofse A,Oelofse R,Lambert M

更新日期：1997-12-01 00:00:00

abstract：PURPOSE:Considering the different loading and training characteristics of the sports practiced during growth, it is important to specify and categorize the bone and soft tissue adaptations in adolescent athletes. This study aimed to categorize 10 different loading sports and a nonsport group and identify the difference...

journal_title：Medicine and science in sports and exercise

authors： Agostinete RR,Fernandes RA,Narciso PH,Maillane-Vanegas S,Werneck AO,Vlachopoulos D

更新日期：2020-12-01 00:00:00

abstract：PURPOSE:This study aimed to catalog the relationships between step-based accelerometer metrics indicative of physical activity volume (steps per day, adjusted to a pedometer scale), intensity (mean steps per minute from the highest, not necessarily consecutive, minutes in a day; peak 30-min cadence), and sedentary beha...

journal_title：Medicine and science in sports and exercise

authors： Tudor-Locke C,Schuna JM Jr,Han HO,Aguiar EJ,Green MA,Busa MA,Larrivee S,Johnson WD

更新日期：2017-02-01 00:00:00

abstract：:To determine the effects of anabolic steroids on myocardial structure, VO2max, and body composition, experienced age-matched male weight trainers (M age 26.5 yr) who either used (U) (N = 11) or did not use (NU) (N = 13) anabolic steroids were evaluated. Steroid users were tested while off cycle (U-OFF) for at least 8 ...

journal_title：Medicine and science in sports and exercise

authors： Sachtleben TR,Berg KE,Elias BA,Cheatham JP,Felix GL,Hofschire PJ

更新日期：1993-11-01 00:00:00

abstract：PURPOSE:To describe physical activity (PA) levels by race/ethnicity, age, gender, and weight status in a representative sample of US youth. METHODS:Cross-sectional data from the 2003-2004 and 2005-2006 National Health and Nutrition Examination Survey were combined and analyzed. Youth aged 6-19 yr with at least four 10...

journal_title：Medicine and science in sports and exercise

authors： Belcher BR,Berrigan D,Dodd KW,Emken BA,Chou CP,Spruijt-Metz D

更新日期：2010-12-01 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：PURPOSE:Physically active women have a reduced risk of breast cancer, but the dose of activity necessary and the role of energy balance and other potential mechanisms have not been fully explored in animal models. We examined treadmill and wheel running effects on mammary tumorigenesis and biomarkers in p53-deficient (...

journal_title：Medicine and science in sports and exercise

authors： Colbert LH,Westerlind KC,Perkins SN,Haines DC,Berrigan D,Donehower LA,Fuchs-Young R,Hursting SD

更新日期：2009-08-01 00:00:00

abstract：PURPOSE:To compare the physiological and performance adaptations between periodized and nonperiodized resistance training in women collegiate tennis athletes. METHODS:Thirty women (19 +/- 1 yr) were assigned to either a periodized resistance training group (P), nonperiodized training group (NV), or a control group (C)...

journal_title：Medicine and science in sports and exercise

authors： Kraemer WJ,Hakkinen K,Triplett-Mcbride NT,Fry AC,Koziris LP,Ratamess NA,Bauer JE,Volek JS,McConnell T,Newton RU,Gordon SE,Cummings D,Hauth J,Pullo F,Lynch JM,Fleck SJ,Mazzetti SA,Knuttgen HG

更新日期：2003-01-01 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：INTRODUCTION:Acute stress can increase fatigability and decrease steadiness of sustained low-force contractions that are required for functional tasks in upper limb muscles. Whether motor performance is more impaired in people with a chronic stress disorder is not known. PURPOSE:This study compared the fatigability an...

journal_title：Medicine and science in sports and exercise

authors： Keller-Ross ML,Schlinder-Delap B,Doyel R,Larson G,Hunter SK

更新日期：2014-07-01 00:00:00

abstract：:Compared with level walking or running, progressive downhill walking or running requires a decreasing energy cost to some minimum where the cost again increases with further decrements in grade. Margaria estimated this minimum occurs at a -9% grade. In this study an attempt was made to more precisely track the energy ...

journal_title：Medicine and science in sports and exercise

authors： Wanta DM,Nagle FJ,Webb P

更新日期：1993-01-01 00:00:00

abstract：PURPOSE:Tibial stress fracture is a common overuse running injury that results from the interplay of repetitive mechanical loading and bone strength. This research project aimed to determine whether female runners with a history of tibial stress fracture (TSF) differ in ground reaction force (GRF) parameters during run...

journal_title：Medicine and science in sports and exercise

authors： Bennell K,Crossley K,Jayarajan J,Walton E,Warden S,Kiss ZS,Wrigley T

更新日期：2004-03-01 00:00:00

abstract：:Forces that are repeatedly applied to the body could lead to positive remodeling of a structure if the forces fall below the tensile limit of the structure and if sufficient time is provided between force applications. On the other hand, an overuse injury could result if there is inadequate rest time between applied f...

journal_title：Medicine and science in sports and exercise

authors： Hreljac A

更新日期：2004-05-01 00:00:00

abstract：PURPOSE:Serial evaluation of aerobic metabolism and exercise tolerance early after heart transplantation (HT). METHODS:Fifteen heart transplant recipients (HTR), aged 52.0 +/- 9.9 yr (mean +/- SD), not undergoing structured rehabilitation programs, were tested two to four times during the first 2 yr post-HT. As a refe...

journal_title：Medicine and science in sports and exercise

authors： Borrelli E,Pogliaghi S,Molinello A,Diciolla F,Maccherini M,Grassi B

更新日期：2003-11-01 00:00:00

abstract：:Twelve male swimmers were studied psychologically before, during, and after 10 d of increased training. Daily training distance was increased from 4,000 to 9,000 m.d-1, and intensity was maintained at 94% of VO2max. Three of the swimmers were unable to tolerate the increased training load, and they did the same distan...

journal_title：Medicine and science in sports and exercise

authors： Morgan WP,Costill DL,Flynn MG,Raglin JS,O'Connor PJ

更新日期：1988-08-01 00:00:00

abstract：UNLABELLED:Migrating birds have been able to sustain an energy expenditure (EE) that is five times their basal metabolic rate. Although humans can readily reach these levels, it is not yet clear what levels can be sustained for several days. PURPOSE:The study's purposes were 1) to determine the upper limits of human E...

journal_title：Medicine and science in sports and exercise

authors： Cooper JA,Nguyen DD,Ruby BC,Schoeller DA

更新日期：2011-12-01 00:00:00

abstract：:Oxidation-reduction (redox) based regulation of gene expression appears to be a fundamental regulatory mechanism in cell biology. This basic information has been exploited to develop novel strategies in clinical therapeutics. In contrast to the conventional idea that reactive species mostly serve as a trigger for oxid...

journal_title：Medicine and science in sports and exercise

authors： Sen CK

更新日期：2001-03-01 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：:Exercise represents the primary countermeasure used during spaceflight to maintain or restore maximal aerobic capacity (VO2max), musculoskeletal structure, and orthostatic function. However, no single exercise or combination of prescriptions has proven entirely effective in restoring cardiovascular and musculoskeletal...

journal_title：Medicine and science in sports and exercise

authors： Convertino VA

更新日期：1996-08-01 00:00:00

abstract：PURPOSE:To test for relationships between objectively measured habitual physical activity and fundamental movement skills in a relatively large and representative sample of preschool children. METHODS:Physical activity was measured over 6 d using the Computer Science and Applications (CSA) accelerometer in 394 boys an...

journal_title：Medicine and science in sports and exercise

authors： Fisher A,Reilly JJ,Kelly LA,Montgomery C,Williamson A,Paton JY,Grant S

更新日期：2005-04-01 00:00:00

abstract：:Endurance exercise training increases fat oxidation during large muscle mass exercise. Although the source of this fat has been thought to be plasma free fatty acids (FFA) released from adipose tissue, the training-induced decrease in lipolytic hormonal responses to exercise is not consistent with this concept. The pu...

journal_title：Medicine and science in sports and exercise

authors： Martin WH 3rd

更新日期：1997-05-01 00:00:00

abstract：INTRODUCTION:Acute bupropion (dopamine/noradrenaline reuptake inhibitor) administration significantly improved time trial performance and increased core temperature in the heat (30 degrees C). PURPOSE:The present study was performed to examine the effect of a dopaminergic reuptake inhibitor on exercise capacity and th...

journal_title：Medicine and science in sports and exercise

authors： Roelands B,Hasegawa H,Watson P,Piacentini MF,Buyse L,De Schutter G,Meeusen RR

更新日期：2008-05-01 00:00:00

abstract：INTRODUCTION:Muscle force production is usually impaired in people with spinal cord injury (SCI). The use of high-intensity neuromuscular electrical stimulation (NMES) strength training can help promote metabolically active lean muscle mass and, thus, increase muscle mass and improve physical health and quality of life...

journal_title：Medicine and science in sports and exercise

authors： Bochkezanian V,Newton RU,Trajano GS,Blazevich AJ

更新日期：2018-09-01 00:00:00

abstract：:The ventilatory stimulating effects of hypoxia occurring at carotid bodies are potentiated by exercise. However, hypoxia also has central ventilatory depressive effects; the potential interactions between this hypoxic depression and exercise have not been studied. We examined the ventilatory response to a 20 min perio...

journal_title：Medicine and science in sports and exercise

authors： Ward DS,Nguyen TT

更新日期：1991-06-01 00:00:00

abstract：INTRODUCTION:Strenuous exercise induces significant increases in cardiac biomarkers. However, it is still unclear whether this is caused by cardiomyocyte necrosis or secondary mechanisms such as ischemia, cardiac energy deficiency, increased inflammation, or renal dysfunction. METHODS:Therefore, we investigated cardia...

journal_title：Medicine and science in sports and exercise

authors： Scherr J,Braun S,Schuster T,Hartmann C,Moehlenkamp S,Wolfarth B,Pressler A,Halle M

更新日期：2011-10-01 00:00:00

abstract：:To discriminate suitable fire fighters from recurring large groups of applicants, an objective test battery was developed which screened applicants on the basis of physical, psychomotor, and mental abilities. The physical and psychomotor selection procedures first involved fundamental tests of general aerobic enduranc...

journal_title：Medicine and science in sports and exercise

authors： Brownlie L,Brown S,Diewert G,Good P,Holman G,Laue G,Banister E

更新日期：1985-12-01 00:00:00

abstract：INTRODUCTION:The purpose of this study was to identify key demographic and health factors associated with physical activity (PA) participation in adults with type 1 or type 2 diabetes. METHODS:Participants were adults > or = 18 yr of age living in the province of Alberta, Canada who were previously diagnosed with type...

journal_title：Medicine and science in sports and exercise

authors： Plotnikoff RC,Taylor LM,Wilson PM,Courneya KS,Sigal RJ,Birkett N,Raine K,Svenson LW

更新日期：2006-08-01 00:00:00