نتایج جستجو برای: isometric rate of force development

تعداد نتایج: 21291530  

Journal: :The American journal of physiology 1975
R J Paul J W Peterson

The length-tension and length-oxygen consumption rate relationships were studied in bovine mesenteric vein at 37 degrees C. The absence of spontaneous mechanical activity permits straightforward interpretation in terms of active (smooth muscle) and passive components of the vein wall. Longitudinal loops, the predominant smooth muscle component being oriented in the longitudinal (axial) directio...

Journal: :Aging clinical and experimental research 2002
Mati Pääsuke Karin Mõttus Jaan Ereline Helena Gapeyeva Pille Taba

AIMS This study examined lower limb performance in older sedentary patients with Parkinson's disease (PD). METHODS Fourteen female patients with mild to moderate PD and 12 age-matched controls were included in this study. The force preparation and production of the knee extensor muscles during maximal isometric contraction were measured by dynamometric chair. Two force plates were used to mea...

2016
Klaus Wirth Michael Keiner Hagen Hartmann Andre Sander Christoph Mickel

The aim of this study was to evaluate the effectiveness of free-weight and machine-based exercises to increase different strength and speed-strength variables. One hundred twenty male participants (age: 23.8 ± 2.5 years; body height: 181.0 ± 6.8 cm; body mass: 80.2 ± 8.9 kg) joined the study. The 2 experimental groups completed an 8 week periodized strength training program that included 2 trai...

Objective: Effect of peppermint on exercise performance was previously investigated but equivocal findings exist. This study aimed to investigate the effects of peppermint ingestion on the physiological parameters and exercise performance after 5 min and 1 h. Materials and Methods: Thirty healthy male university students were randomly divided into experimental (n=15) and control (n=15) groups. ...

Journal: :Journal of strength and conditioning research 2006
Jeffrey M McBride Prue Cormie Russell Deane

The purpose of this study was to assess the effect of stable vs. unstable conditions on force output and muscle activity during an isometric squat. Nine men involved in recreational resistance training participated in the investigation by completing a single testing session. Within this session subjects performed isometric squats either while standing directly on the force plate (stable conditi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی 1391

the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...

Journal: :Journal of applied physiology 2005
Richard A Meiss Ramana M Pidaparti

Contraction of smooth muscle tissue involves interactions between active and passive structures within the cells and in the extracellular matrix. This study focused on a defined mechanical behavior (shortening-dependent stiffness) of canine tracheal smooth muscle tissues to evaluate active and passive contributions to tissue behavior. Two approaches were used. In one, mechanical measurements we...

Journal: :Journal of strength and conditioning research 2011
Daniel J West Nick J Owen Marc R Jones Richard M Bracken Christian J Cook Dan J Cunningham David A Shearer Charlotte V Finn Robert U Newton Blair T Crewther Liam P Kilduff

There is considerable conflict within the literature regarding the relevance of isometric testing for the assessment of neuromuscular function within dynamic sports. The aim of this study was to determine the relationship between isometric measures of force development and dynamic performance. Thirty-nine professional rugby league players participated in this study. Forty-eight hours after tria...

Afsun Nodehi Moghadami, Nagafali Dehghane,

Objectives: It is well known that neuromuscular function is temperature sensitive. Changing of muscle temperature can effect voluntary muscle contraction. The aim of this study was to investigate the effects of cooling and heating on maximal isometric force generated by the elbow flexor musculature in male subjects. Methods: Forty five healthy males encompassing 3 groups participated in the ...

2009
HUGH S. LAMONT JOEL T. CRAMER DEBRA A. BEMBEN RANDA L. SHEHAB MARK A. ANDERSON MICHAEL G. BEMBEN

Lamont, HS, Cramer, JT, Bemben, DA, Shehab, RL, Anderson, MA, and Bemben, MG. Effects of adding whole body vibration to squat training on isometric force/time characteristics. J Strength Cond Res 24(x): 000–000, 2009—Resistance training interventions aimed at increasing lower-body power and rates of force development have produced varying results. Recent studies have suggested that whole-body l...

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