Dřevostavba pro rekreační účely

The bachelor thesis deals with the design of a wooden building, which will be used for recreational purposes, and it will also be inhabitable for the whole year. The introductory part focuses on already realized wood buildings for recreational purposes. The architectural design of the recreational building is devised in the theoretical part, including a detailed description of the selected structural system and a description of materials, which will be used for the aforementioned building. For the layers of perimeter construction, there is an assessment of the thermal protection aspect. At the end of the thesis, economic aspects are shown. The thesis also contains a technical report, an accompanying report and basic drawings with added drawings of specified structural details

Aging impairs heat loss, but when does it matter?

Aging is associated with an attenuated physiological ability to dissipate heat. However, it remains unclear if age-related impairments in heat dissipation only occur above a certain level of heat stress and whether this response is altered by aerobic fitness. Therefore, we examined changes in whole body evaporative heat loss (HE) as determined using whole body direct calorimetry in young (n = 10; 21 +/- 1 yr), untrained middle-aged (n = 10; 48 +/- 5 yr), and older (n = 10; 65 +/- 3 yr) males matched for body surface area. We also studied a group of trained middle-aged males (n = 10; 49 +/- 5 yr) matched for body surface area with all groups and for aerobic fitness with the young group. Participants performed intermittent aerobic exercise (30-min exercise bouts separated by 15-min rest) in the heat (40 degrees C and 15% relative humidity) at progressively greater fixed rates of heat production equal to 300 (Ex1), 400 (Ex2), and 500 (Ex3) W. Results showed that HE was significantly lower in middle-aged untrained (Ex2: 426 +/- 34; and Ex3: 497 +/- 17 W) and older (Ex2: 424 +/- 38; and Ex3: 485 +/- 44 W) compared with young (Ex2: 472 +/- 42; and Ex3: 558 +/- 51 W) and middle-aged trained (474 +/- 21; Ex3: 552 +/- 23 W) males at the end of Ex2 and Ex3 (P = 400 W when performed in a hot environment. These impairments in untrained middle-aged males can be minimized through regular aerobic exercise training