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Lorna Francis also observed a Bench Blast training session in May 1989, remarking that it was an excellent overall exercise regimen for people without joint problems. [18] Meanwhile, in New Jersey, fitness trainer Cathe Friedrich had been working with long wooden benches which were 14 inches (36 cm) high. Up to six people at a time could ...
The dimensions of a stair, in particular the rise height and going of the steps, should remain the same along the stairs. [14] The following stair dimensions are important: The rise height or rise of each step is measured from the top of one tread to the next. It is not the physical height of the riser; the latter excludes the thickness of the ...
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Stair climbing has developed into the organized sport tower running.Every year several stair climbing races are held around the world with the competitors running up the stairs of some of the world's tallest buildings and towers (e.g., the Empire State Building, Gran Hotel Bali), or on outside stairs such as the Niesenbahn Stairway.
Around May 1895, Charles Seeberger began drawings on a form of escalator similar to those patented by Wheeler in 1892. This device consisted of flat, moving stairs, not unlike the escalators of today, except for one important detail: the step surface was smooth, with no comb effect to safely guide the rider's feet off at the ends.
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Good lighting is important in a staircase so users see where they are going and to prevent falls. [6] There is often a window on the wall to let in daylight.In many cases, indoor stairs are placed far inside the building structure, and it is often not easy to get access to a wall on the outside where it would be natural to have a regular window for letting daylight in.