A comparative evaluation of sonomyography, electromyography, force, and wrist angle in a discrete tracking task.

We have previously used the real-time change of muscle thickness detected using ultrasound, namely sonomyography (SMG), for prosthesis motor control purposes. In the present study, we further compared subjects' performance using SMG and surface electromyography (EMG) in a series of discrete tracking tasks, both with and without a concurrent auditory attention task. Sixteen healthy subjects used different signals in a random order to control the cursor on a personal computer screen to cancel the letter "E" in a sequence of vertically arranged letters.

A dual-task approach to the evaluation of the myokinemetric signal as an alternative to EMG.

EMG is the signal widely used in neuromuscular control, biofeedback and measurement applications. Alternative physiological signals are available, but are used relatively infrequently. In the development of assistive devices, such as functional electrical stimulators, it is important to make the device as straightforward to use as possible.

[Infection with Chlamydophila pneumoniae as a cause of female infertility of tubal origin?].

Objective: A contribution to the role of Chlamydophila pneumoniae in women from the IVF program.

Design: A serological study proving the antibodies against the antigens of Chlamydophila pneumoniae (C. pneumoniae) and Chlamydia trachomatis (C.

[Evidence of antibodies against the chlamydial heat shock protein (cHSP60) in women from "in vitro" fertilization program].

Objective: A contribution to the role of chlamydial heat shock protein in women from the IVF program.

Design: A serological study proving the antibodies against the chlamydial heat shock protein.

Setting: Veterinary Research Institute, Brno, Department of Clinical Microbiology, and Centrum of Reproductive Medicine, Faculty Hospital Brno.

[Heat shock protein antibodies and other chlamydial antigens in various diseases and their occurrence in blood donors].

Background: The chlamydial infections are very frequently considered in the causal connection with some diseases e.g. atherosclerosis or chronic joint infections.