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The work evaluation of the cardiac patient.

Treadmill exercise testing performed three weeks following clinically uncomplicated myocardial infarction was used to assess the occupational work potential of 196 men aged 70 or less. Within the six months after infarction the rate of combined medical and surgical events (sudden death, nonfatal cardiac arrest, myocardial infarction or coronary artery bypass graft surgery) was 34% in the one-quarter of patients judged to be at high risk and 4% in the three-quarters of patients judged to be at low risk on the basis of exercise testing--an eight-fold difference. Seven weeks or more after infarction, treadmill testing or leg-cranking ergometry proved more sensitive than static effort or arm cranking or treadmill exercise combined with static effort in the detection of ischemic and arrhythmic abnormalities. Occupational work assessment may limit costs for postinfarction patients in two ways: (1) by facilitating optimal usage of diagnostic tests and therapeutic interventions in high-risk patients; and (2) by obviating needless delay in the return to work of low-risk patients.

Disability Evaluation↗

Disability and workers' compensation.

Physicians are often requested to provide medical evaluations and opinions about disability. This article presents differing definitions of disability and impairment. It focuses on the specific disability systems known as workers' compensation systems, the roles physicians play in these systems, and the parties involved in workers' compensation systems.

Activities of Daily Living↗

[Assessment methods for vocational integration of disabled persons--from ERTOMIS methods to the IMBA information system].

The background for the development of actual assessments for evaluation of vocational integration of disabled people (i.e., EAM, IMBA) in Germany is described. Resulting perspectives for future procedural approaches are presented. So far, the EAM, Ertomis Assessment Method, approach has gained limited acceptance only. In light of WHO and European impulses, as well as the economic constraints at hand, it remains to be seen whether the IMBA information system will turn out a practical and problem-focussed tool. A critical review is done to provide constructive suggestions for further applications of IMBA.

Disability Evaluation↗

[Assessment of capacity and job requirements at the interface between medical and occupational rehabilitation].

The article deals with the development, nationally and internationally, of assessment systems permitting parallel appraisal of an individual's abilities and the requirements presented by the working conditions at hand. By comparison of abilities and requirements, these assessments are aimed at concretizing individual need for intervention as well as prompt practical implementation in view of occupational placement of people with disabilities. The course of development is of special interest in this context as the description of abilities starts out from the basic concepts of the ICIDH while description of the working conditions is based on ergonomic concepts. Uniting these different developments in an integrated system for assessing abilities and requirements, has been achieved by ERTOMIS Foundation, with effective support on the part of K.-A. Jochheim, through an empirically-practically oriented approach, whereas a corresponding multidisciplinary research project funded by the Federal Ministry of Labour, in light of its scientific-theoretical background gave preference to a hierarchical-modular structural concept. At a European level as well, both the European Council (partial agreement) and the European Union Helios II working groups have exclusively acknowledged assessment systems of this kind as providing an important bridge between the field of rehabilitation and the world of work.

Disability Evaluation↗

Long-term effect of beta-blockade with timolol on maximal work capacity following myocardial infarction.

In a double-blind, randomized, placebo controlled trial 74 patients surviving a myocardial infarction (MI) were stress tested three and twelve months following MI. Thirty-eight patients received the beta blocking agent timolol and 36 patients received placebo. There was no significant difference in the mean total exercise capacity of the two groups. Most of the patients treated with timolol discontinued the exercise test because of exhaustion, but the placebo treated patients usually stopped the test because of chest pain, exhaustion or a fall in blood pressure. Patients treated with timolol had significantly less increase in heart rate, systolic blood pressure and rate-pressure product during exercise compared to placebo. We conclude that beta-blockade with timolol after MI does not affect work capacity, but timolol-treated patients perform the same work with a lower rate-pressure product.

Adult↗

[Work capacity].

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Disability Evaluation↗

[Relevance of a performance capacity model for uniform and standardized performance diagnostics].

To obtain a standardized method for performance capacity assessment in social medicine reference to a generally accepted model of performance capacity is necessary. Further, such a model enables description of the effects of chronic disease on performance capacity. This article describes how the term "performance capacity" can be reduced to operational basal parameters by a hierarchic breakdown, with the domain "physical performance capacity" having the most complex structure. Furthermore the construction of a graduation according to work-load taxonomies for every parameter is shown. The collection of data on the level of basal parameters is essential to assess the concrete performance capacity. To apply the model as a basis for estimating the effects of chronic disease, graduated disease features have to be created. The benefit of the procedure described lies in increased transparency of the decision process. Hence, performance capacity assessment will gain reliability and objectivity.

Chronic Disease↗

[Ergometric studies in the practice of medical aviation expertise].

In order to assess standard and relative indices of ergometry, exercise tolerance and physical work capacity, 64 members of flight crews with compensated atherosclerotic coronary cardiosclerosis (aged 28 to 56) were examined. The studies were carried out using the Siemens cardiopulmonary complex at rest, at work load of 100 Wt/min for 5 min and during recovery for 10 min. At the initiation of the experiment and during recovery ECG in 12 standard leads was recorded every other minute. With respect to the age and clinical data, the test subjects were subdivided into two groups. Electrocardiographic study revealed insufficiency of coronary circulation in 63.7% of the first group and in 80,6% of the second group test subjects. Ergometric measurements showed a distinct decrease of the chronotropic, inotropic and aerobic cardiac reserves, especially of the second group test subjects. Ergometric parameters correlated well with the clinical and electrocardiographic data. The results can be used in the diagnostics, evaluation of cardiopulmonary functional and reserve capabilities, and support of expertise recommendations.

Adult↗