نتایج جستجو برای: min exercise on a cycle ergometer at 85 maximal heart rate blood samples were collected before

تعداد نتایج: 16739935  

Journal: :علوم زیستی ورزشی 0
امیرحسین حقیقی دانشیار گروه فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران ریحانه ادیال باف مقدم کارشناس ارشد فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران محمد رضا حامدی نیا استاد گروه فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه حکیم سبزواری، سبزوار، ایران

the purpose of present study was to examine the effect of caffeine consumption on substrate metabolism and time to exhaustion during exercise and one hour after exercise in athletic female. eleven female athlete students (age 23±1.54 years, body weight 56.09±5.99 kg, and aerobic power 40.21±1.01ml/kg/min) volunteered and were randomly divided into three groups of control,placebo (starch capsule...

2015
Cory Scott Frank Wyatt Jason Winchester Keith Williamson Ashleigh Welter Sean Brown

Scott C, Wyatt F, Winchester J, Williamson K, Welter A, Brown S. Physiological Breakpoints and Maximal Steady-State of Cycling. JEPonline 2015;18(3):33-45. The aim of this study was to examine various physiological thresholds and their association with maximal steady-state exercise. Elite level cyclists (n = 15) participated in the study. All data were collected on a Velotron cycle ergometer, l...

2014
Maeng Kyu Kim

PURPOSE Heart Rate Recovery (HRR) after maximum exercise is a reactivation function of vagus nerve and an independent risk factor that predicts cardiovascular disease and mortality. Weight loss obtained through dietary programs has been employed as a therapy to reduce risks of cardiovascular disease and obesity. METHODS Eighteen subjects of middle aged obese men (age 44.8 ± 1.6 yrs, BMI 29.7 ...

Journal: :British journal of sports medicine 1997
J R Welsman N Armstrong S Withers

OBJECTIVES To investigate the physiological effects of two different three times a week, eight week training programmes on the aerobic fitness of nine to ten year old girls. METHODS Treadmill determined peak VO2, submaximal heart rates, and submaximal blood lactate were the criterion measures. Seventeen girls completed a programme of "aerobics" training where sessions lasted 20-25 minutes. Ei...

Journal: :journal of research in medical sciences 0
nader - rahnama associate professor, faculty of physical education and sport sciences, university of isfahan, isfahan, iran abbasali gaeini professor, faculty of physical education and sport sciences, university of tehran, tehran, iran fahimeh kazemi , faculty of physical education and sport sciences, university of tehran, tehran, iran

background: consumption of energy drinks has become widespread among athletes. the effectiveness of red bull and hype energy drinks on selected indices of maximal cardiorespiratory fitness and blood lactate levels in male athletes was examined in this study. methods: ten male student athletes (age: 22.4 ± 2.1 years, height: 180.8 ± 7.7 cm, weight: 74.2 ± 8.5 kg) performed three randomized maxim...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده پزشکی 1390

nitric oxide (no) is a small molecule synthesized by most of mammalian cells with diverse biological activities including vasodilatation, host defense and wound healing. impaired wound healing is a common occurrence among diabetics and patients receiving glucocorticoid therapy. on the other hand the application of laser in biomedical area have been increased. thus, the current studies were desi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات 1394

abstract the purpose of this study was to find out the effect of applying the principles of group-dynamic assessment (g-da) on learning of conditional structures in english by iranian efl learners at the intermediate level, which according to the formal educational system in iran, includes students who are in their second year of studying in high schools of koohdasht city. this study was a qua...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

Objectives. The purpose of the present study was to systematically evaluate the scientific evidence about the impact of pre-competition sexual activity on athletic performance. Methods. Using the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement, PubMed, Scopus, ISI Web of Science, Cochrane Library, ProQuest, Physiotherapy Evidence Database(PEDro), and Googl...

Introduction: The central-governor model explains the mechanism of endurance exercise-induced central fatigue, but high-intensity exercise-induced central fatigue has not been investigated yet. This study aimed to research how central fatigue during high-intensity intermittent pedaling alters the neural response, which results in electroencephalography (EEG) recordings. Methods: We assessed ne...

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