نتایج جستجو برای: endurance limit

تعداد نتایج: 205143  

Journal: :Journal of Materials Research 2021

Despite the remarkable development in ferroelectric HfO2-based FETs, key reliability challenges (e.g., retention, endurance, etc.) may still limit their widespread adoption memory and logic applications. In this paper, we present a simple theoretical framework—based on Landau theory of phase transition—to design both FETs (FeFETs) negative capacitance transistors (NCFETs) investigate issues. Fo...

2012
Somayeh Bordbar Mohammad Ali Babaee Bigi Amir Aslani Eskandar Rahimi Nader Ahmadi

OBJECTIVES The aim of this study was to investigate the effects of 8-week endurance and resistance exercise training on release of brain natriuretic peptide. MATERIALS AND METHODS Study population was categorized into 4 groups: Group-1 (n = 6) consisted of sedentary individuals who volunteered to complete 8-weeks of endurance exercise; Group-2 (n=6) consisted of sedentary individuals who volu...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2007
Samuel Verges Oliver Lenherr Andrea C Haner Christian Schulz Christina M Spengler

Respiratory muscle fatigue develops during exhaustive exercise and can limit exercise performance. Respiratory muscle training, in turn, can increase exercise performance. We investigated whether respiratory muscle endurance training (RMT) reduces exercise-induced inspiratory and expiratory muscle fatigue. Twenty-one healthy, male volunteers performed twenty 30-min sessions of either normocapni...

Journal: :asian journal of sports medicine 0
beat knechtle institute of general practice and health services research, university of zurich, zurich, switzerland ; gesundheitszentrum st. gallen, st. gallen, switzerland ; facharzt fmh für allgemeinmedizin gesundheitszentrum st. gallen vadianstrasse 26 9001 st. gallen switzerland

a variety of anthropometric and training characteristics have been identified as predictor variables for race performance in endurance and ultra-endurance athletes. anthropometric characteristics such as skin-fold thicknesses, body fat, circumferences and length of limbs, body mass, body height, and body mass index were bi-variately related to race performance in endurance athletes such as swim...

2015
Eva Bernardi Luca Pomidori Faisy Bassal Marco Contoli Annalisa Cogo

BACKGROUND Few data are available about the effects of respiratory muscle training with normocapnic hyperpnea (NH) in COPD. The aim is to evaluate the effects of 4 weeks of NH (Spirotiger(®)) on ventilatory pattern, exercise capacity, and quality of life (QoL) in COPD patients. METHODS Twenty-six COPD patients (three females), ages 49-82 years, were included in this study. Spirometry and maxi...

Journal: :Modelling and Simulation in Materials Science and Engineering 2021

Abstract Additively manufactured specimens generally exhibit comparable or improved tensile properties, such as yield stress, ultimate strength, and uniform elongation, compared to conventionally specimens. However, the defects that are typically present in additively microstructures result inferior fatigue performance. A representative volume element-based modeling technique incorporating thes...

Journal: :Medicine and science in sports and exercise 2001
A Boussana S Matecki O Galy O Hue M Ramonatxo D Le Gallais

PURPOSE The aim of this study was to examine the effects of the cycle-run and run-cycle successions of the triathlon and duathlon, respectively, on respiratory muscle strength and endurance. METHODS Respiratory muscle strength was assessed by measuring maximal inspiratory (P(Imax)) and expiratory (P(Emax)) pressures. Respiratory muscle endurance was assessed by measuring the time limit (T(lim...

Journal: :Europace 2009
Lluís Mont Roberto Elosua Josep Brugada

Although the benefits of regular exercise in controlling cardiovascular risk factors have been extensively proven, little is known about the long-term cardiovascular effects of regular and extreme endurance sport practice, such as jogging, cycling, rowing, swimming, etc. Recent data from a small series suggest a relationship between regular, long-term endurance sport practice and atrial fibrill...

2017
Maik Bieleke Wanja Wolff

Ratings of perceived exertion (RPE) are routinely assessed in exercise science and RPE is substantially associated with physiological criterion measures. According to the psychobiological model of endurance, RPE is a central limiting factor in performance. While RPE is known to be affected by psychological manipulations, it remains to be examined whether RPE can be self-regulated during static ...

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