An exercise assisting apparatus is provided with a cycling machine for causing a user to turn pedals 11b under the action of a load of an electromagnetic clutch 12b, a rotation sensor 11c for detecting a pedaling movement of the cycling machine, a pulse sensor 19 for detecting the pulse rate of the user, an exercise monitoring unit for monitoring the pulse rate of the user, etc. The distributor-collector part or parts arranged between the upper part and the lower part. The notes andor summaries are printed along with data glyphs that provide time based indexes or offsets into the recorded video. Also provided are vectors, host cells, and recombinant and synthetic methods for producing human polynucleotides andor polypeptides, and antibodies. A coupling device is provided and is suitable for coupling the laser light during operation of the first and second laser light sources before it enters into the at least one optical fiber.