نتایج جستجو برای: isometric rate of force development

تعداد نتایج: 21291530  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

پایان نامه :0 1374

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...

کریمی, صابره, سرائی‌پور, سلاله , نوری‌زاده دهکردی, شهره ,

Loudness of verbal commands affect the Voluntary motor response. It seems the more intensity of verbal command, the more muscle contraction force. The purpose of thisstudy was to investigate the hypothesized effect of verbal command loundness onmagnitude of a resulting voluntary isometric contraction of triceps brachi muscle. Thirthy five female subjectsbetween ages of 18-30 performed f...

Journal: :Journal of applied physiology 2001
K Kubo H Kanehisa M Ito T Fukunaga

The present study aimed to investigate the effect of isometric training on the elasticity of human tendon structures. Eight subjects completed 12 wk (4 days/wk) of isometric training that consisted of unilateral knee extension at 70% of maximal voluntary contraction (MVC) for 20 s per set (4 sets/day). Before and after training, the elongation of the tendon structures in the vastus lateralis mu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی و اجتماعی 1389

today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...

Journal: :Motor control 2013
Martin H Rose Annemette Løkkegaard Stig Sonne-Holm Bente R Jensen

We investigated lower-extremity isometric tremor Approximate Entropy (irregularity), torque steadiness and rate of force development (RFD) and their associations to muscle activation strategy during isometric knee extensions in patients with Parkinson's disease (PD). Thirteen male patients with idiopathic PD and 15 neurologically healthy matched controls performed isometric maximal contractions...

Journal: :International journal of sports physiology and performance 2008
Michael H Stone William A Sands Kyle C Pierce Michael W Ramsey G Gregory Haff

PURPOSE To assess the effects of manipulating the loading of successive sets of midthigh clean pulls on the potentiation capabilities of 7 international-level US weightlifters (4 men, 3 women). METHODS Isometric and dynamic peak-force characteristics were measured with a force plate at 500 Hz. Velocity during dynamic pulls was measured using 2 potentiometers that were suspended from the top o...

2004
David M. Bazett-Jones Jeffery M. McBride M. R. McGuigan

Warm-up involves different factors and is implemented in multiple fields and applications. In athletics, it is an essential aspect of preparation. Four specific different warm-ups were randomly investigated in this study. PURPOSE: The purpose of this investigation was to compare the effects of stretching versus a heavy squat (potentiation) versus a loaded jump squat (potentiation) on subsequent...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1992
N Jordan H J Sagar J A Cooper

Paradigms of isometric force control allow study of the generation and release of movement in the absence of complications due to disordered visuomotor coordination. The onset and release of isometric force in Parkinson's disease (PD) was studied, using computerised determinants of latency of response and rate of force generation and release. Components of isometric force control were related t...

Journal: :The Journal of General Physiology 1980
M J Siegman T M Butler S U Mooers R E Davies

High-energy phosphate utilization (delta approximately P) associated with force development, force maintenance, and relaxation has been determined during single isometric tetani in the rabbit taenia coli. ATP resynthesis from glycolysis and respiration was stopped without deleterious effects on the muscle. At 18 degrees C and a muscle length of 95% l0, the resting rate of energy utilization is ...

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