This study examined whether active or passive cooling during intermittent work reduced the heat strain associated with wearing firefighting protective clothing (FPC) and self-contained breathing apparatus (SCBA) in the heat (35 degrees Celsius, 50% relative humidity). Fifteen male Toronto firefighters participated in the heat-stress trials. Subjects walked at 4.5 km.h(-1) with 0% elevation on a...

Abstract Introduction Firefighters’ (FFs) cardiorespiratory fitness is considered an important capacity for workability. To successfully complete safety standards and rescue protocols, FFs are required to accomplish minimum values of relative VO 2max . Physical programs must take into consideration physiological demands, being essential not only professional tasks but also as a guarantee their ...

Abstract Concrete has been known to the world be one of most crucial components a developing country but there some downsides environment in making concrete. Mixing concrete needs water, fine aggregates, coarse and cements as main component. Cement is cause disadvantages normal mixing because cement production, it will emit lot carbon dioxide environment. The emission atmosphere proven problems...