instruction: measurement of brachial artery diameter variation by ultrasound methods has commonly been used to test the endothelial function. it is known that the artery diameter is increased by flow stimulation. therefore in the present study, the effect of external obstruction, as flow stimulation, on the radial strain of the brachial artery was assessed. also the biomechanical behavior of th...

background: plasterers are at risk of musculoskeletal disorders (msds) due to the nature of their occupation and ergonomic factors. the purpose of this study was to evaluate the biomechanical risk factors for msds among plasterers. materials and methods: in this descriptive study, 70 plasterers from neyshabur, iran, were studied in 2014. the nordic musculoskeletal questionnaire (nmq) was used t...

Live real-time study of the local and collective cellular biomechanical responses requires fine selective manipulation environment. One innovative pathway is use photoactive bio-substrates such as azobenzene-containing materials, which exhibit specific photomechanical properties, to optically trigger local, mechanical stimulation cells. Mechanically stimulated cells major morphological modifica...

Autoregulation of blood flow is a marvelous phenomenon balancing blood supply and tissue demand. Although many chemically-based explanations for this phenomenon have been proposed and some of them are commonly used today, biomechanical aspects of this phenomenon was neglected. The biomechanical aspect provides insights to us to model vessel diameter changes more precisely and comprehensively. O...

Finite element (FE) numerical simulation is an effective tool for analyzing phenomena that cannot be clarified by experimental methods, like most of the biomechanical processes, for example the age-related spinal degeneration processes. Moreover, numerical simulation techniques have the potential to reduce costs and to save time during the development of new effective spinal treatment methods o...

The observed kinematics of speech movements are the result of both the control by the brain and the biomechanical properties of the peripheral speech apparatus. For many kinematic phenomena, it is not clear whether they are actively controlled or intrinsic to the biomechanical system. This pilot study investigated the movement of sensors on the lips and the jaw in cyclical vowel transitions at ...

Purpose Recent proposals suggest that (a) the high dimensionality of speech motor control may be reduced via modular neuromuscular organization that takes advantage of intrinsic biomechanical regions of stability and (b) computational modeling provides a means to study whether and how such modularization works. In this study, the focus is on the larynx, a structure that is fundamental to speech...