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Biomedical subjects

W Rohmert

Publications and source records attributed to W Rohmert.

67 records · Page 4Linked to original sources
PubMed1973

Problems in determining rest allowances Part 1: use of modern methods to evaluate stress and strain in static muscular work.

After mentioning today's practice in handling the problem of setting rest allowances, definitions are given for the terms of fatigue, recovery and degree of fatigue. Discriminating between stress and strain leads to the possibilities in determining both. Measurable effects of fatigue in static muscular work are discussed. The procedure for determining optimal working rhythms by measuring stress and strain in static muscular work is explained.

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PubMed1973

Problems of determination of rest allowances Part 2: determining rest allowances in different human tasks.

Within a task analysis related to strain on the individual, human tasks can be ordered into five steps differentiated by the various strains on human organs using different capabilities. For these five categories, examples of rest allowances based on laboratory as well as field study research using physiologically oriented methods are given. Different types of breaks are discussed and suitable measures for optimizing rest allowances are mentioned.

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PubMed1972

Ergonomic research in German travelling mail service. Part 1: ergonomic problems and research in railway mail vans.

Ergonomic problems in the travelling mail service are described, showing the necessity of ergonomic research work within the railway mail van, to obtain results suitable for evaluating the strain of travelling mail office clerks as well as for designing the system of a mail railroad car. The special methodological procedure of this type of ergonomic field research is discussed.

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PubMed1972

Ergonomic research in the German travelling mail services Part 2: results of ergonomic research in railway mail vans.

The travelling mail office clerks are shown, by medical examination and sociopsychological questionnaire, to be a very homogeneous naturally self-selected group with a low average age. The analysis of tasks shows a disadvantageous distribution of some main tasks over the work shift. Energy expenditure and cardio-vascular strain above physiological endurance limits occur mainly with the tasks of loading, handling and emptying mail bags. Environmental factors are mainly within acceptable standards. Fast-time simulation studies show that proposals can be made for organisation work (by job rotation) and selection of TMO clerks based on their individual working capacity.

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PubMed1972

Ergonomic research in the German travelling mail services Part 3: consequences for system design.

The work process within a railway mail van is analysed showing that only 4 of 14 processes are technological ones, ie specific to the mail operation. The flow of material within today's vans is very confused. For the given technical data a new design was developed using line arrangements and separated work places with specific work content. The design allows a reduction of travelling mail service staff of about 30%, with an increased system effectiveness and less stressful working conditions for the clerks.

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