F wave. In neuroscience, an F wave is the second of two voltage changes observed after electrical stimulation is applied to the skin surface above the distal region of a nerve. F waves are often used to measure nerve conduction velocity, and are particularly useful for evaluating conduction problems in the proximal region of nerves (i.e., portions of nerves near the spinal cord).
The success of the first permanent bobsleigh, luge, and skeleton track in KÃ¶nigssee, West Germany, completed in 1968 and first used for the world luge championships the following year, also played a factor. [7] [8] In 1969, it was decided to construct a permanent facility in Oberhof. [9]
Bobsledding was introduced in the 1924 Olympic games in France. Only four-man sleds raced there. Now, there is also a two-man sled competition.The bobsled run is at least 1,500 meters long and has about 15 or 20 turns. Walls of ice, about 18 inches high, keep the sleds from flying off the runs.A...