نتایج جستجو برای: 20 untrained

تعداد نتایج: 612767  

Background: MicroRNAs are non-coding RNAs that are involved in post-transcriptional down regulation of genes and myogenesis. The purpose of this study was to investigate the effects of an acute bout of exhaustive resistance exercise on miR-206 expression in slow and fast twitch skeletal muscles in trained and untrained male wistar rats. Methods: This experimental study was conducted with the an...

Journal: :Journal of applied physiology 2003
James C Baldi Kendra McFarlane Helen C Oxenham Gillian A Whalley Helen J Walsh Robert N Doughty

Aging is associated with impaired early diastolic filling; however, the effect of endurance training on resting diastolic function in older subjects is unclear. Heart rate and ventricular loading conditions affect mitral inflow velocities measured by Doppler echocardiography; therefore, tissue Doppler imaging of mitral annular velocity, which is relatively preload independent, was combined with...

2001
Brian E. Hunt William B. Farquhar Andrew Taylor

Background—We measured cardiovagal baroreflex gain and its vascular mechanical and neural components during dynamic baroreflex engagement in 10 young untrained men, 6 older untrained men, and 12 older, physically active men. Methods and Results—Our newly developed assessment of beat-to-beat carotid diameters during baroreflex engagement estimates the mechanical transduction of pressure into bar...

2015
Rong Zhu Caiyun Wen Jiance Li M. Brennan Harris Yung-Yang Liu Chia-Hua Kuo

UNLABELLED Exercise training is known to increase intramuscular triglyceride content in both trained and untrained legs. The purpose of the study was to determine the changes of intramyocellular lipids (IMCL) and extramyocellular lipids (EMCL) of both trained and untrained legs during detraining. We measured both IMCL and EMCL levels in previously trained vs. untrained legs during 4-weeks of de...

2017
Sermin Algul Cagri Ozdenk Oguz Ozcelik

The aims of this study were to investigate the impacts of acute aerobic exercise on circulating levels of hormones associated with energy metabolism, namely leptin, nesfatin-1 and irisin, in trained and untrained male subjects and to determine whether the timing of the exercise (i.e. morning or night) amplified these impacts. Thirty trained (19.2±0.7 years) and 30 untrained (19.5±0.6 years) mal...

2017
Fahimeh Hashemirad Paul B. Fitzgerald Maryam Zoghi Shapour Jaberzadeh

Due to the potential of anodal transcranial direct current stimulation (a-tDCS) for enhancement of fine sequenced movements and increasing interest in achieving high level of fine movements in the trained and untrained hands especially at initial stage of learning, we designed this study to investigate whether the application of single-session a-tDCS with small-size stimulating electrodes over ...

2017
Daniil V. Popov Evgeny A. Lysenko Pavel A. Makhnovskii Nadia S. Kurochkina Olga L. Vinogradova

Promoter-specific expression of the PPARGC1A gene in untrained and trained human skeletal muscle was investigated. Ten untrained males performed a one-legged knee extension exercise (for 60 min) with the same relative intensity both before and after 8 weeks of cycling training. Samples from the m. vastus lateralis of each leg were taken before and after exercise. Postexercise PPARGC1A gene expr...

Journal: :Circulation 2001
Michael F O'Rourke Wilmer W Nichols

BACKGROUND We measured cardiovagal baroreflex gain and its vascular mechanical and neural components during dynamic baroreflex engagement in 10 young untrained men, 6 older untrained men, and 12 older, physically active men. METHODS AND RESULTS Our newly developed assessment of beat-to-beat carotid diameters during baroreflex engagement estimates the mechanical transduction of pressure into b...

Journal: :Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi 2013
D Barzuca Brigitha Vlaicu Adriana Mircioaga Elena Mircioaga I Carabas

The purpose of this paper is to analyze the self-perception of weight in relation with the body mass index and the body composition of three working groups composed of physically untrained young students, young athletes and patients diagnosed with chronic diseases. The working groups consisted of 110 participants: untrained students, athletes and dialysed patients; 50.9% women and 49.1% men; wi...

Journal: :علوم زیستی ورزشی 0
فاطمه شب خیز استادیار گروه فیزیولوژی دانشگاه تهران نیما قره داغی دانشجوی دکترای فیزیولوژی ورزشی دانشگاه تهران زینب اینانلو کارشناس تربیت بدنی دانشگاه تهران نیلوفر صفاریان پزشک متخصص قلب و عروق بیمارستان شانزده آذر

the aim of this study was to investigate the effect of 6 weeks of resistance training on morphological indicators of untrained women's heart health. for this purpose, 20 sedentary females (22/6±18 years old, 162/3±6/5 cm height, 58±5/1 kg weight, 18/3±5/2% percentage of fat and the surface of body: 1/62±0/15 m2) were selected randomly and assigned to two experimental (n = 10) and control (...

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