For a general theory of health: preliminary epistemological and anthropological notes.
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In order to conduct a preliminary evaluation of the conditions allowing for a General Theory of Health, the author explores two important structural dimensions of the scientific health field: the socio-anthropological dimension and the epistemological dimension. As a preliminary semantic framework, he adopts the following definitions in English and Portuguese for two series of meanings: disease = patologia, disorder = transtorno, illness = enfermidade, sickness = doenca, and malady = molestia. He begins by discussing some sociological theories and biomedical concepts of health-disease, which, despite their limitations, can be used as a point of departure for this undertaking, given the dialectical and multidimensional nature of the disease-illness-sickness complex (DIS). Second, he presents and evaluates some underlying socio-anthropological theories of disease, taking advantage of the opportunity to highlight the semeiologic treatment of health-disease through the theory of "signs, meanings, and health practices". Third, he analyzes several epistemological issues relating to the Health theme, seeking to justify its status as a scientific object. Finally, the author focuses the discussion on a proposal to systematize various health concepts as an initial stage for the theoretical construction of the Collective Health field. (+info)
Nutrition and healthy functioning in the developing world.
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There is a general lack of data for studying the relationship between nutrition and healthy functioning among the elderly in developing countries. Nevertheless, knowledge of biological relationships from studies in other countries can be applied to gain an understanding of what can be expected in the developing world. In this respect, the concept of the nutrition transition is important. However, nutrition transition as related to elderly populations in developing countries has not yet been adequately studied. The developing world is not homogeneous with respect to patterns of nutritional status among the elderly, and problems of both under- and overnutrition exist among different populations of the elderly and both will be important factors for future functional status levels. In addition, there are many extrinsic factors (such as socioeconomic, political and cultural factors) in these countries that are even more important in determining nutritional status and its relation to function. Unless research and policy development in developing countries escalate and keep pace with the nutrition and demographic transitions in these countries, high levels of disability and dependency are likely in the near future. (+info)
The impact of nutritional supplementation and resistance training on the health functioning of free-living Chilean elders: results of 18 months of follow-up.
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Body composition changes and loss of functionality in the elderly are related to substandard diets and progressive sedentariness. The aim of this study was to assess the impact of an 18-mo nutritional supplementation and resistance training program on health functioning of elders. Healthy elders aged > or = 70 y were studied. Half of the subjects received a nutritional supplement. Half of the supplemented and nonsupplemented subjects were randomly assigned to a resistance exercise training program. Every 6 mo, a full assessment was performed. A total of 149 subjects were considered eligible for the study and 98 (31 supplemented and trained, 26 supplemented, 16 trained and 25 without supplementation or training) completed 18 mo of follow-up. Compliance with the supplement was 48%, and trained subjects attended 56% of programmed sessions. Activities of daily living remained constant in the supplemented subjects and decreased in the other groups. Body weight and fat-free mass did not change. Fat mass increased from 22.2 +/- 7.6 to 24.1 +/- 7.7 kg in all groups. Bone mineral density decreased less in both supplemented groups than in the nonsupplemented groups (ANOVA, P < 0.01). Serum cholesterol remained constant in both supplemented groups and in the trained groups, but it increased in the control group (ANOVA, P < 0.05). Upper and lower limb strength, walking capacity and maximal inspiratory pressure increased in trained subjects. In conclusion, patients who were receiving nutritional supplementation and resistance training maintained functionality, bone mineral density and serum cholesterol levels and improved their muscle strength. (+info)
Response to: What counts as success in genetic counselling?
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Clinical genetics encompasses a wider range of activities than discussion of reproductive risks and options. Hence, it is possible for a clinical geneticist to reduce suffering associated with genetic disease without aiming to reduce the birth incidence of such diseases. Simple cost-benefit analyses of genetic-screening programmes are unacceptable; more sophisticated analyses of this type have been devised but entail internal inconsistencies and do not seem to result in changed clinical practice. The secondary effects of screening programmes must be assessed before they can be properly evaluated, including the inadvertent diagnosis of unsought conditions, and the wider social effects of the programmes on those with mental handicap. This has implications for the range of prenatal tests that should be made available. While autonomy must be fully respected, it cannot itself constitute a goal of clinical genetics. The evaluation of these services requires interdepartmental comparisons of workload, and quality judgements of clients and peers. (+info)
Ethics in occupational health.
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We know little about perceptions, practices, or constraints of ethics in occupational health because little research has been done. Opinions about the field, however, are abundant. Existing codes of ethical practice in occupational health have not consciously been derived from the fundamental principles of "freedom" and "well-being" or from philosophical premises and methods; rather, they are based on consensus among practitioners. The author outlines useful concepts and methods for making decisions about ethical questions in occupational health. (+info)
Values in preventive medicine: the hidden agenda.
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We know how lifestyle affects health, yet concern for preventing illness by promoting healthy lifestyles remains marginal in medical practice. Effective preventive strategies can raise daunting moral and political problems about the extent to which individual freedoms may be infringed, particularly on paternalistic grounds. Evaluative questions also arise about more specific matters, such as identifying risk and causal factors, determining what level of risk is acceptable, and deciding how compelling the evidence must be to take preventive action. (+info)
Confidentiality of medical information: a study of Albertan family physicians.
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The author of this paper examines physicians' regard for the confidentiality of medical information in the light of their perception of their own role. Five case studies of increasing complexity of medical management and ethical issues, derived from practice and accompanied by questions relating to confidentiality and medical management, were submitted to randomly selected family physicians in Alberta. Analysis of the replies to determine attitudes to confidentiality and how the respondents perceived patients' best interests, and statements of how they would act in certain situations, disclosed that a substantial minority of the physicians were still prepared to breach confidentiality and exercise Hippocratic professional judgement in certain situations. The bases of confidentiality of medical information are reviewed, together with changing modes of medical ethics and the increasing trend to rights derived from patients, autonomy, and the ways in which these factors may affect the physician-patient relationship. (+info)