BACKGROUND The so-called "heel spur" is a radiological term referring to adaptive bone growth as a result of chronic overload enthesopathy of the proximal attachment of the plantar fascia. The main cause of the pain is continued localised pressure on the surrounding soft tissues. Vibroacoustic wave therapy is a relatively new method gaining popularity among doctors, physiotherapists and patient...

Introduction. In 1980, research into the effects of low frequency noise (LFN, <500 Hz, including infrasound) -induced pathology began to be studied among a group of aircraft technicians. Vibroacoustic disease (VAD) has since been defined as the whole-body pathology caused by excessive exposure to LFN. In 1987, the first autopsy of a VAD patient was performed. Among the plethora of findings that...

In the automotive industry damping has become an important and highly effective design parameter for reducing low-frequency vibroacoustic noise in the vehicle compartment. It is a fairly straightforward procedure to compute vibroacoustic frequency responses of a damped car body for a given excitation and to compare the resulting response levels to a prescribed specification over a frequency ran...

This study aims at developing an experimental method for characterizing the vibroacoustic behaviour of panels excited by random pressure fields. Although the method would be theoretically applicable to any stationary and homogeneous random process, diffuse acoustic field (DAF) and turbulent boundary layer (TBL) excitations are considered in this study. The interest of industrials towards these ...

The purpose of this study was to investigate the feasibility of different fetal heart rate (FHR) ranges in the nonstress test (NST) and to better understand the meaning of mild bradycardia and/or tachycardia without non-reassuring patterns. We employed the heredity to show that mild bradycardia (100-119 beats per minute, bpm) and mild tachycardia (161-180 bpm) regressed to the normal FHR range ...

Hearing Protection Devices (HPD), such as earmuffs, are widely used to protect workers from noisy environments. Numerical predictive tools can be used to simulate the vibroacoustic behaviour of earmuffs and thus assess their sound attenuation and improve their acoustical design. The present work describes the implementation of a vibroacoustic finite element numerical model of an earmuff coupled...