Download Body Fat and Physical Fitness: Body Composition and Lipid by Jana Pařízková M. D. (auth.) PDF

By Jana Pařízková M. D. (auth.)

Man develops in the course of phylogenesis and ontogenesis as an lively creature and his so much awesome exterior manifestations contain actual task. From this occur efforts to enquire the human organism with reference to its sensible analysis in general in the course of job, relating to the extent of that actual job. the quantity and qualitative element of actual job is topic to a few legislation linked to the developmental degree, form of better frightened task, healthiness, dietary prestige, exterior atmosphere inc!. social place, career, leisure pursuits, etc.; hence it's also one of many very important ecological elements. throughout the interval earlier than the onset of technical civilization actual health and function have been crucial necessities for survival and profitable lifestyles. at the moment and from the point of the point of view improvement of our civilization the significance of actual health is driven into the historical past; however enough actual task point is even this day a tremendous prerequisite for regular functionality of the organism as a whole.

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Tanner-Whitehouse caliper; fa Siber Hegner, Zurich). 4. Results of comparison of skinfolds measured by means of different calipers One of the most frequently used calipers is the Harpenden caliper (Edwards et al. 1955). This caliper has, however, quite different characteristics; it has larger (12 x x 6 mm) contact areas of an oblong shape and the pressure exerted per 1 mm 2 is 10 g (Plate 3a,b). ,This pressure was adopted in 1959 as a uniform value for the assessment of skinfold thickness. It is thus not possible to compare data obtained by different calipers (Rehs et al.

Restriction of activity was achieved by placing the animals after weaning (31 st- 32nd day) in small boxes 62 Plate 5. Cages with small compartments (8 x 12 x 20 cm) for the artificial restriction of physical activity of laboratory rats (Pafizkova and Staiikova 1964a,b; 1967). ) the walls of which were made of perforated aluminium or wire netting (to reduce the strain of isolation and the absence of olfactory, thermal and other stimuli). ). The controls lived in normal cages cca 30 x 45 x 28 em.

This maximal metabolic level in relation to LBM has not been compared so far for a wide age range. 1. ; Pafizkova and Eiselt 1966, 52 1968) as well as data on the maximum oxygen consumption (Sprynarova 1966, Pafizkova and Sprynarova 1968, 1970, Mackova 1968, Eiselt and Pafizkova 1975). The maximal oxygen consumption was measured on a treadmill in a horizontal position. 5 kmj min. After 10 min. e. 5 km. The examined subjects ran till they reached the point of subjective exhaustion. The oxygen consumption was assessed continuously using low resistence valves with tubes 3 cm in diameter.

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