نتایج جستجو برای: grf

تعداد نتایج: 784  

Journal: :Domestic animal endocrinology 2005
C R Barb J B Barrett

Pituitary cells, from seven 160- to 170-day-old pigs, were studied in primary culture to determine the affects NPY on LH and GH secretion at the level of the pituitary. On day 4 of culture, medium was discarded, plates were rinsed twice with serum-free medium and cells were cultured in 1 ml fresh medium without serum and challenged individually with 10(-10), 10(-8) or 10(-6) M [Ala(15)]-h growt...

Journal: :international journal of occupational and environment medicine 0
m ziaei department of occupational health, faculty of health, kermanshah university of medical sciences, kermanshah, iran sh nabavi department of ergonomics, university of social welfare and rehabilitation sciences, tehran, iran hr mokhtarinia department of ergonomics, university of social welfare and rehabilitation sciences, tehran, iran sf tabatabai ghomshe department of ergonomics, university of social welfare and rehabilitation sciences, tehran, iran

background: prevention of slipping accidents requires provision of adequate friction through the use of suitable combinations of footwear and underfoot surfaces. shoe sole tread groove is one of the important factors on friction coefficient during walking. objective: to measure the effect of different shoe sole tread groove depths and different surfaces on the required quotient of friction (q),...

Journal: :The Journal of endocrinology 2003
I P Georgiev T M Georgieva M Pfaffl H M Hammon J W Blum

Intestinal development is modified by age and nutrition, mediated in part by insulin-like growth factors (IGF-I, IGF-II) and insulin. We have investigated whether expression of IGF-I, IGF-II and insulin receptors (IGF-IR, IGF-IIR and IR; measured by real-time RT-PCR) and binding capacity (Bmax) of IGF-IR, IGF-IIR and IR in the mucosa of the small and large intestine of neonatal calves are modif...

Journal: :Journal of animal science 1991
R B Simpson J D Armstrong R W Harvey D C Miller E P Heimer R M Campbell

Angus and Charolais heifers (195 +/- 7 kg) were actively immunized against growth hormone-releasing factor (GRF) to evaluate the effect on concentrations of somatotropin (ST), insulin-like growth factor I (IGF-I), insulin (INS), growth, and onset of puberty. Primary immunizations were given at 184 +/- 7 d of age (d 0 of experiment) by injecting (s.c.) 1.5 mg of GRF-(1-29)-Gly-Gly-Cys-NH2 conjug...

2007
Eneida Yuri Suda Carla Sonsino Pereira Isabel de Camargo Neves Sacco

The purpose of this study was to compare vertical ground reaction forces (GRF) and electromyographic activity (EMG) from peroneus longus (PL), tibialis anterior (TA) and gastrocnemius lateralis (GL) of volleyball athletes with and without functional ankle instability (FI) during landing after a blocking maneuver. Synchronized EMG and GRF from 200ms prior to impact to 200ms after impact were acq...

2013
F. R. Kleiner A. do Carmo M. L. de Barros

The aim of this study is to investigate the effect of flooring surfaces in the ground reaction forces and foot/floor friction during stroke gait. The participant was oriented to walk, in its own preferred speed, over two force plates on the following surfaces: HOV, carpet and HTV. The results of this study showed no differences between the hemiparetic and the control group when de GRF and COF w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده تربیت بدنی و علوم ورزشی 1392

شکستگی استرسی درشت نی یکی از شایع ترین آسیب ها در دوندگان است. هدف این پژوهش بررسی اثر کفش ناپایدار بر متغیرهای سینتیک مرتبط با شکستگی استرسی درشت نی طی مرحله ی اتکای دویدن در زنان فعال بود. 17 آزمودنی سالم از دانشجویان دختر رشته ی تربیت بدنی انتخاب شدند. داده های سه بعدی نیروهای عکس العمل زمین (grf) طی مرحله ی اتکای دویدن با یک کفش معمولی با کفی صاف (knup) به عنوان کفش کنترل و یک کفش با کفی گه...

2012
Tassos Natsakis Koen Peeters Fien Burg Greta Dereymaeker Jos Vander Sloten Ilse Jonkers

Background In-vitro gait simulations have great potential, allowing a systematic analysis of the foot function. However, it is important that the loading conditions are realistic i.e. physiologic ground reaction forces (GRF). In most experiments, in-vivo measured GRF can be imposed [1,2]. However in experimental designs that evaluate the effect of altered muscle forces on foot motion this is mo...

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