Activity of daily living on non-working and working days in Polish urban society.

Objectives: Activities of daily living are currently the simplest form of activity. For many people this is the only activity in which they participate. In this connection, it is important to determine the level of physical activity connected with daily habits including occupational activities.

Study design and rationale for biomedical shirt-based electrocardiography monitoring in relevant clinical situations: ECG-shirt study.

Background: Today, the main challenge for researchers is to develop new technologies which may help to improve the diagnoses of cardiovascular disease (CVD), thereby reducing healthcare costs and improving the quality of life for patients. This study aims to show the utility of biomedical shirt-based electrocardiography (ECG) monitoring of patients with CVD in different clinical situations using the Nuubo® ECG (nECG) system.

Methods: An investigator-initiated, multicenter, prospective observational study was carried out in a cardiology (adult and pediatric) and cardiac rehabilitation wards.

[Physical exercise prevents osteoporosis].

Life expectancy lengthened over the past 165 years. This is one of the reasons, that the prevalence of diseases connected with elderly, including osteoporosis, has increased. A physical activity may be used as prophylactic tool against osteoporosis and improve the skeletal resistance to bone fractures.

Scuba diving does not affect bone mineral density or bone mineral content.

Objectives: Scuba diving is a very specialized, physically demanding activity. The bones of divers are subjected to stress from water pressure, from the forces generated when their muscles resist water pressure, and from weightlessness. Notably, few studies have addressed the effects of diving on bone mineral density (BMD) and bone mineral content (BMC), and the results have been controversial.

Inactivation of alcohol dehydrogenase (ADH) by ferryl derivatives of human hemoglobin.

In this paper, inactivation of alcohol dehydrogenase (ADH) by products of reactions of H2O2 with metHb has been studied. Inactivation of the enzyme was studied in two systems corresponding to two kinetic stages of the reaction. In the first system H2O2 was added to the mixture of metHb and ADH [the (metHb+ADH)+H2O2] system (ADH was present in the system since the moment of addition of H2O2 i.