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Biomedical subjects

S Israel

Publications and source records attributed to S Israel.

At least 37 records · Page 2Linked to original sources
PubMed1977

[Effect of training in sports on the cardiovascular system of children and adolescents].

In a review the specific reaction of the cardiovascular system of children and youth to actual athletic stress and on a staying power training is dealt with. The present knowledge is imperfect because the medicine had a cautious opinion of the maximum stress of the infantile heart till recent times, and children training systematically were exceptions. The examination of the cardiovascular system of training children is complicated as far as the effects of training are mostly equal in direction like growth, maturing, and development effects. But it is evident that the infantile circulation system is well adaptable to staying power results. During training a cardiac enlargement surpassing the growth rate is arising. Under the condition of rest the heart of the trained child is more subjected to vagal control with the appropriate functional consequences. By submaximum stress an economization of the function can be observed. During stress a stronger inotropia with increased stroke volume and better oxygen absorption is stated. The post-stress phase is characterized by an accelerated return of the deflected functions to the zero level. Furthermore statements are made about the specific ECG of sporting children, about the problems of sports at heart diseases, about acceleration and retardation as well as about the transformation of physiologic knowledge into methodical conceptions for training.

Adolescent↗
PubMed1975

[Primary prevention and non-linearity in cardiovascular adaptation].

The size of the healthy heart and its function stand in a significant reciprocity. An enlargement of the heart in the sense of the formation of the athletic heart is characterized by an optimation of the function. On the basis of a larger sample the functional behaviour of healthy hearts between a size of 600 and 1,380 ml was tested. The function of the heart is not linearly connected with the size of the heat in the whole breadth of adaptation. When a small adaptation level is present a larger functional change is to be attached to a defined change of the size of the heart than in a high adaptation level. The curve of functional indices reveals a parabolic form above the size of the heart. This situation is present in rest, in submaximal load, in the phase of final load and in the phase of after-load. On the basis of representative parameters of the cardiovascular function this fact is demonstrated. The adaptation optimum is found nearly in the middle of the possible phase of adaptation. The author deals with the importance which these findings have for the primary prevention of cardiovascular diseases.

Adaptation, Physiological↗
PubMed1971

General-practitioner hospital beds: a review.

This paper reviews literature related to general-practitioner hospital beds. In England and Wales 21% of all maternity beds are controlled by general practitioners rather than consultants, and the proportion has increased considerably since 1955. Nearly one in five of these 21% are sited in the wards of a consultant hospital. General-practitioner beds, other than maternity, represent 3% of all hospital beds (excluding psychiatric beds) and this proportion has remained constant over the past 15 years. Only about 1% of these general-practitioner beds are located in a consultant hospital.IN THE DISCUSSION THREE QUESTIONS ARE RAISED: Will general-practitioner inpatient care have a useful function in the future? What might that function be? Where should the care be located? The broader issue of the future role of the general practitioner needs to be considered before these questions can be satisfactorily answered. Unless a "hospital orientated" role of the general practitioner prevails there seems little place for practitioner inpatient care in urban areas. In the more rural areas, however, whatever the role of the practitioner becomes, certain groups of patients might advantageously receive inpatient care from their practitioners. Firmer answers to the questions raised cannot be given until a co-ordinated programme of research and development concerning different patterns of care is started.

Costs and Cost Analysis↗