Vertical and radial motions of the body during the take-off phase of high jumping.

abstract：PURPOSE:This study examined whether plasma total glutathione levels could explain the intersubject variability in the creatine kinase (CK) response to eccentric exercise. We hypothesized that the increase in plasma CK activity after eccentric exercise would be lower for individuals with low plasma total glutathione (<2...

journal_title：Medicine and science in sports and exercise

authors： Lee J,Clarkson PM

更新日期：2003-06-01 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：BACKGROUND:Sensitization of mechanosensitive afferents, which contribute to the exercise pressor reflex, has been recognized as a characteristic of patients with heart failure (HF); however, the hemodynamic implications of this hypersensitivity are unclear. OBJECTIVES:The present study used passive leg movement (PLM) ...

journal_title：Medicine and science in sports and exercise

authors： Ives SJ,Amann M,Venturelli M,Witman MA,Groot HJ,Wray DW,Morgan DE,Stehlik J,Richardson RS

更新日期：2016-03-01 00:00:00

abstract：:We used an algebraic model of resting heart rate (HRr), HRr-mn (HRo), to compare resting parasympathetic (n) and sympathetic (m) influence, intrinsic heart rate (HRo), and resting autonomic balance (Abal) in ten endurance-trained (ET) and ten nontrained (NT) men. The values of m, n, and Abal were determined by selecti...

journal_title：Medicine and science in sports and exercise

authors： Smith ML,Hudson DL,Graitzer HM,Raven PB

更新日期：1989-02-01 00:00:00

abstract：UNLABELLED:Controversy surrounds whether running mechanics make good predictors of running economy (RE) with little known about the development of an economical running gait. PURPOSE:The aim of this study was to identify if mechanical or physiological variables changed during 10 wk of running in beginners and whether ...

journal_title：Medicine and science in sports and exercise

authors： Moore IS,Jones AM,Dixon SJ

更新日期：2012-09-01 00:00:00

abstract：:To test whether strenuous exercise with and without caloric restriction alters LH secretion, and whether these changes are apparent in the immediate post-exercise period, LH pulse parameters were studied in four moderately trained eumenorrheic women over three successive menstrual cycles. Blood samples were obtained 5...

journal_title：Medicine and science in sports and exercise

authors： Williams NI,Young JC,McArthur JW,Bullen B,Skrinar GS,Turnbull B

更新日期：1995-10-01 00:00:00

abstract：PURPOSE:The objectives of this study were 1) to examine the differences between a noninjured (C) cohort of runners (N = 70) and runners afflicted with anterior knee pain (AKP) according to selected training, anthropometric, rearfoot motion, ground reaction force, and muscular strength and endurance variables; 2) to exp...

journal_title：Medicine and science in sports and exercise

authors： Duffey MJ,Martin DF,Cannon DW,Craven T,Messier SP

更新日期：2000-11-01 00:00:00

abstract：PURPOSE:The purpose of this study was to compare architectural characteristics of leg muscles of sprinters and distance runners. METHODS:Skeletal muscle architectural characteristics were studied in 23 elite male 100-m sprinters (SPR, 10.0-10.9 s for 100 m), 24 elite male distance runners (DR, 13.5-14.5 min for 5000 m...

journal_title：Medicine and science in sports and exercise

authors： Abe T,Kumagai K,Brechue WF

更新日期：2000-06-01 00:00:00

abstract：PURPOSE:Muscle injury is the most common sports injury. Muscle stiffness, a risk factor for muscle injury, is lower in females than in males, implying that sex-related genetic polymorphisms influence muscle injury associated with muscle stiffness. The present study aimed to clarify the associations between two genetic ...

journal_title：Medicine and science in sports and exercise

authors： Kumagai H,Miyamoto-Mikami E,Hirata K,Kikuchi N,Kamiya N,Hoshikawa S,Zempo H,Naito H,Miyamoto N,Fuku N

更新日期：2019-01-01 00:00:00

abstract：PURPOSE:The purpose of study was to determine whether quadriceps/patella and Achilles tendon length and flexibility of the knee extensors and plantar flexors are related to walking and running economy. METHODS:Twenty-one male distance runners were subjects. Quadriceps/patella and Achilles tendon length were measured b...

journal_title：Medicine and science in sports and exercise

authors： Hunter GR,Katsoulis K,McCarthy JP,Ogard WK,Bamman MM,Wood DS,Den Hollander JA,Blaudeau TE,Newcomer BR

更新日期：2011-08-01 00:00:00

abstract：:Previous research on catecholamine (CA) response to exercise has linked heightened adiposity to a hypostress syndrome. In the present study a cognitive/psychomotor stressor was employed to determine whether this association exists during less metabolically challenging tasks. Moreover, because stress is manifested in a...

journal_title：Medicine and science in sports and exercise

authors： Sothmann MS,Hart BA,Horn TS

更新日期：1995-03-01 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：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：:Since many physiological, metabolic, and endocrine changes that occur during pregnancy are evident even at rest, the alterations found during exercise may not necessarily be the same as those found in the normal population. Nonetheless, the exercise-induced cardiopulmonary changes are essentially normal or slightly ex...

journal_title：Medicine and science in sports and exercise

authors： Gorski J

更新日期：1985-08-01 00:00:00

abstract：PURPOSE:To compare the historical evolution of performance for males and females in anaerobically dominated sprint events in three different sports: running, swimming, and speed skating. METHODS:Times of the top six finishers in a total of 283 men's and women's Olympic and world championship finals held between 1952 a...

journal_title：Medicine and science in sports and exercise

authors： Seiler S,De Koning JJ,Foster C

更新日期：2007-03-01 00:00:00

abstract：PURPOSE:To determine whether physical activity and fitness change in girls with and without a predisposition to obesity from 8 to 10 yr of age. METHODS:Normal-weight girls (N = 91) were recruited at 8 yr of age according to parental body mass index (BMI): LN = girls with two lean (BMI < 25 kg.m-2) parents, LNOB = girl...

journal_title：Medicine and science in sports and exercise

authors： Treuth MS,Butte NF,Adolph AL,Puyau MR

更新日期：2004-02-01 00:00:00

abstract：:The abdomen is the principal site of fat deposition in men, and because abdominal fat is readily mobilized during exercise, the relative proportion of fat in the abdominal site may negatively correlate with the amount of regular physical activity, and even with physical fitness. This study presents data for regional f...

journal_title：Medicine and science in sports and exercise

authors： Nindl BC,Friedl KE,Marchitelli LJ,Shippee RL,Thomas CD,Patton JF

更新日期：1996-07-01 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：:This 1 year study examined the effect of high impact and low impact activities on bone mineral density (BMD) at the lumbar vertebrae (L2-L4) in healthy, sedentary, early postmenopausal women. Fifteen subjects whose postmenopausal status was verified by the blood levels of follicle stimulating hormone (FSH) and estradi...

journal_title：Medicine and science in sports and exercise

authors： Grove KA,Londeree BR

更新日期：1992-11-01 00:00:00

abstract：:This study compared the effects of exercise or TXB2 and beta-TG when evaluated by four methods: 1) not adjusted; 2) adjusted for plasma volume changes (PV); 3) standardized per 10(5) platelets (PC); 4) or both PC and PV (PC-PV). Blood was collected from 16 men (41.3 +/- 8.1 yr) at rest after 30 min of exercise (IPE) a...

journal_title：Medicine and science in sports and exercise

authors： Todd MK,Goldfarb AH,Burleson C

更新日期：1997-05-01 00:00:00

abstract：PURPOSE:The Compendium of Physical Activities was developed to enhance the comparability of results across studies using self-report physical activity (PA) and is used to quantify the energy cost of a wide variety of PA. We provide the second update of the Compendium, called the 2011 Compendium. METHODS:The 2011 Compe...

journal_title：Medicine and science in sports and exercise

authors： Ainsworth BE,Haskell WL,Herrmann SD,Meckes N,Bassett DR Jr,Tudor-Locke C,Greer JL,Vezina J,Whitt-Glover MC,Leon AS

更新日期：2011-08-01 00:00:00

abstract：PURPOSE:The aim of this study was to test the hypothesis that intermittent hypoxic interval training improves sea level cycling performance more than equivalent training in hypoxia or normoxia. METHODS:Thirty-three well-trained cyclists and triathletes (25.9 +/- 2.7 yr, VO(2max) 66.1 +/- 6.1 mL.min(-1).kg(-1)) were di...

journal_title：Medicine and science in sports and exercise

authors： Roels B,Millet GP,Marcoux CJ,Coste O,Bentley DJ,Candau RB

更新日期：2005-01-01 00:00:00

abstract：:The association of physical activity to the initiation of health risk behaviors was examined in a 3-yr prospective study of a population-based cohort of 1245 adolescents aged 12-16 yr. Four hundred thirty-seven students (35% of the cohort) were identified at baseline via self-report survey as never having smoked cigar...

journal_title：Medicine and science in sports and exercise

authors： Aaron DJ,Dearwater SR,Anderson R,Olsen T,Kriska AM,Laporte RE

更新日期：1995-12-01 00:00:00

abstract：:Nine male and five female college students were tested on four occasions to determine the effects of various exhaustive weightlifting stimuli on forearm blood flow as measured by strain-gauge plethysmography. Maximum voluntary dynamic wrist curl strength was determined in the first session, which was followed by rando...

journal_title：Medicine and science in sports and exercise

authors： Haslam RW,Cobb RB

更新日期：1983-01-01 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：:The purpose of this study was to determine the feasibility of using a 6" digital caliper and a 20x viewing microscope to measure hematocrit (HCT) from microhematocrit tubes. The reliability and validity of the digital caliper technique (DC) was simultaneously compared with that of the conventional "turntable" style mi...

journal_title：Medicine and science in sports and exercise

authors： Kelly ME,Luetkemeier MJ,Pantalos GM

更新日期：1994-05-01 00:00:00

abstract：PURPOSE:Investigate hemodynamic responses of resistance exercise (RE) with moderate load (i.e., international guidelines for RE of patients) versus RE with high load in patients with coronary artery disease (CAD). METHODS:Medically stable male (n = 11) and female patients (n = 4) treated with PCI or percutaneous coron...

journal_title：Medicine and science in sports and exercise

authors： Gjøvaag TF,Mirtaheri P,Simon K,Berdal G,Tuchel I,Westlie T,Bruusgaard KA,Nilsson BB,Hisdal J

更新日期：2016-04-01 00:00:00

abstract：:Hypertension is present in epidemic proportions in adults of industrialized societies and is associated with a markedly increased risk of developing numerous cardiovascular pathologies. There is a continuing debate as to the efficacy of aggressive pharmacological therapy in individuals with mild to moderate elevations...

journal_title：Medicine and science in sports and exercise

authors：

更新日期：1993-10-01 00:00:00

abstract：PURPOSE:Carnosine is a dipeptide composed of β-alanine and L-histidine and is present in skeletal muscle. Chronic oral β-alanine supplementation can induce muscle carnosine loading and is therefore seen as the rate-limiting factor for carnosine synthesis. However, the effect of L-histidine supplementation on carnosine ...

journal_title：Medicine and science in sports and exercise

authors： Blancquaert L,Everaert I,Missinne M,Baguet A,Stegen S,Volkaert A,Petrovic M,Vervaet C,Achten E,DE Maeyer M,DE Henauw S,Derave W

更新日期：2017-03-01 00:00:00

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