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At least 1,117 records · Page 62Linked to original sources
PubMed1988

A second generation microcomputer controlled binding system for alpine skiing research.

In the study of sports biomechanics, alpine skiing injuries have always demanded significant attention. In order to aid in understanding the loading phenomena associated with alpine skiing, a new research binding system has been designed which enables both the recording of boot loading data and actively controlled release of the skier's boot from the ski. The new research binding system consists of three hardware components, a dynamometer which senses all six load components at the boot/ski interface, an electromechanical device capable of releasing the boot from the ski, and a new general purpose microprocessor-based data acquisition and release control module. Constructed integrally with the dynamometer, the release mechanism is activated by electrical command from the control module. The mechanical and electrical design features of the dynamometer/release mechanism as well as important features of the hardware and software of the data acquisition and control module are briefly discussed. The system has been tested both in the laboratory and on the ski slopes. The emphasis of this paper is on the boot loading data acquired through field testing and observations on the loading environment during common recreational skiing maneuvers. Through analysis of the data, insight into both the style and safety aspects of alpine skiing is gained.

Athletic Injuries↗
PubMed1985

A software package for the microcomputer control and analysis of research on schedule-induced polydipsia.

This manuscript describes a software package called POLY which offers a range of routines designed to allow the user to set up, run and analyze data for research on schedule-induced polydipsia. The three major routines described are SETUP, RUN and ANALYSIS. The routines are flexible and give the user efficient control over the parameters of the research and the collection and analysis of the data. Although designed for research on schedule-induced polydipsia, the software can be used for other research purposes, requiring only changes in the support hardware.

Animals↗
PubMed1986

A microcomputer-based system for stereotaxic coordinates in the rat brain.

In this report, the computer hardware and software used in the generation of a stereotaxic rat brain atlas are described. The atlas consists of sagittal and frontal sections drawn to the high-resolution page of the Apple II series computer. Brain architectural and macroscopic areas are represented by lines. Microscopic areas are represented by dots. The system employs a large data base to make available hundreds of brain areas on stereotaxic sections containing precise positional information of thousands of specific locations. For each display, the brain area is identified by name and by cross-hairs with digital display of stereotaxic coordinates. These coordinates may be referenced by earbar-zero or bregma. Other program options allow the printing of brain sections and a listing of available brain areas. Although designed for research in the neurosciences, the software may also be used for educational purposes.

Animals↗
PubMed1989

A microcomputer controlled data acquisition system for research on feeding and drinking behavior in rats.

This paper describes an inexpensive, reliable computer controlled data collection system designed for the continuous monitoring of feeding and drinking behavior in rats. This system will be useful in areas of behavioral pharmacology research requiring a detailed analysis of food and fluid intake. The configuration described herein was developed for research on the "microstructure" of alcohol drinking behavior. Variables examined include: alcohol bout size, frequency and duration, interbout intervals as well as the temporal pattern of intake and its relationship to food and water consumption. Detailed analysis of behavior using this technique will enhance our ability to interpret the nature of changes in alcohol oriented behavior produced by pharmacological manipulations, aid in the development of specific hypotheses related to the regulation of alcohol drinking behavior and provide a means of testing these hypotheses.

Animals↗
PubMed1982

Multifunctional prosthesis and orthosis control via microcomputer identification of temporal pattern differences in single-site myoelectric signals.

The paper discusses results of on-line tests on amputees and hemiplegics of multifunctional prostheses and orthoses control by identifying the parameters of single-site temporal EMG signal signatures. The results relate to tests on above-elbow amputees, on shoulder-disarticulation amputees (including a congenital disarticulation amputee) and on hemiplegics, varying from 5 to 50 years of age. The system employed is based on an 8-bit Intel 8080 microprocessor, when computation is in double precision, to obtain an effective 16-bit work-length. The system employs a sequential least-squares algorithm to identify a 4-parameter auto-regressive time-series model of the EMG signal, and a Bayesian rule discrimination algorithm.

Adolescent↗
PubMed1987

Microcomputer-based low-cost method for measurement of spatial and temporal parameters of gait.

The instantaneous velocity of the forward-going foot is measured throughout the swing phase during several successive gait cycles using punched paper tapes attached to the feet. The velocity profiles thus obtained show clearly any asymmetry or departure from the normal walking pattern. The data are processed to provide the spatial and temporal parameters of gait, i.e. step lengths, stride times, double-support times, cadence and walking speed. The equipment is low-cost, easy to set up and use, and the results, which are presented on the VDU or as hard copy, are readily interpreted and related to the underlying pathology.

Biomechanical Phenomena↗
PubMed1986

An automated microcomputer-based system for determining canine paw pressure quantitatively in the dog synovitis model.

The automated system for measuring canine paw pressure is a very useful tool for the evaluation of nonsteroid antiinflammatory drugs such as indomethacin and ibuprofen in the dog synovitis model. The apparatus has been designed to give the operator control over the dog's posture while measuring hind-paw pressure. The stability of the measuring platform permits reproducible measurement of paw pressures. The software package performs direct data recording and data reduction and eliminates tedious manual calculations. Subsequently, the software produces a printout summarizing the experimental results in tabular and graphic form.

Animals↗
PubMed1986

A fast data acquisition system for neurophysiological signals based on a personal microcomputer.

A general purpose analog-to-digital conversion system and its interface for a low-cost personal computer (Commodore 64) are described. Special emphasis has been put on achieving a high sampling frequency rate (up to 20,000 samples/s) and a high discrimination (12 bits). It has likewise been attempted to increase the number of input channels (up to 8, by means of a multiplexer) and averaging capability since such features may be useful in a great number of neurobiological studies. Commercially available hardware elements have been employed and software has been developed in BASIC and 6510 Machine Code.

Analog-Digital Conversion↗
PubMed1987

On-line analysis of rapid motion with a microcomputer.

A software package is described, which uses an Apple IIe computer with a digitizing board (Digisector 65) for analysing rapid motions of appendages of small insects from video images. Every 20 ms the program simultaneously analyses the position of two moving appendages after a background correction and the externally applied trigger stimulus. The data may be plotted in high-resolution plots with a matrix printer and evaluated with statistical methods.

Animals↗