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Biomedical subjects

W Rohmert

Publications and source records attributed to W Rohmert.

At least 55 records · Page 3Linked to original sources
PubMed1978

[Examination and assessment of time-variant human strain in motor car driving: real situation--simulation (author's transl)].

Time variant processes of activity, activation and strain of man are registrated during several hours of automobil driving (highway-autobahn) for different stress conditions and classified in terms of degrees of fatigue. By comparison with an assessment of strain in a simulated driving task with the same individuum and the same research-methods it is shown that the development of methods for measurement and assessment of time-variant human processes in laboratory experiments can be recommended, field-studies higher degrees of strain were found than under laboratory conditions.

Automobile Driving↗
PubMed1978

Ergonomics in the design and evaluation of a system for "postal video letter coding".

In co-operation with the German Central Post Office for Technological Development, the authors designed and investigated the task of and workplace for "Postal video-letter-coding". Experiments including measures of performance, errors, heart rate, arrhythmia, EMG's, and EOG's were used to experiment with variations in the design of displays, codes, keyboards, shifts and rest pauses. As a result of this work the following recommendations have been made by the authors and accepted by the authorities: An optimal display configuration has been developed with two vertically arranged tv displays. Coding-rules are to be simplified by modifications of the postcode. The usual flat keyboard has been replaced by an inclined and angular keyboard. Night-shifts must be avoided because of the tedious nature of the task. A work-rest-schedule of 50 min work and 10 min rest is proposed. In 1978 the complete work-system-design will be introduced in the standard postal service.

Journal Article↗
PubMed1977

Increasing awareness of ergonomics by in-company courses--a case study.

There are some traditional ways for instruction and training in ergonomics, for example the academic method or the empirical way of self-taught practitioners. Because of a usually disinterested management, the last way is very often difficult to achieve. This report deals with experiences where a lucky chance happened and the idea of ergonomics arose from the management and became an inspiration of the whole plant.

Journal Article↗
PubMed1976

[Examination of blinking-rate in a simulated four hour driving task].

In a driving simulation task performance and physiological measurement of strain was registered on 3 subjects in 9 experiments. The time-variant behaviour of blinking-rate was examined together with performance, self-rating and physiological strain. The correlating results make blinking-rate a possible indicator for activation of willingness to good performance. A multidimensional concept for assessment of the degree of individual fatigue is presented and validated in respect of working-time.

Adult↗
PubMed1976

[Adaption of subjects in field studies of informatory working conditions (author's transl)].

Processes of adaption in measurements of performance - cycle-times, variance of cycle-times, informatory component of time and errors - and of physiological strain - electromyograms of musculus extensor digitorum and musculus rhomboideus, horizontal and vertical electrooculogram, heart rate and heart rate variability - are presented and described in type and frequency. Simultaneous reactions and successive reactions of measured variables in dependance of shift-time and of days are described. They are classified according to the causes "exercise" and "emotional habituation" and discussed in a model "experimenter - experimental situation".

Adaptation, Physiological↗