HANDRAIL FOR RAILROAD VEHICLE AND METHOD FOR CHANGING NATURAL FREQUENCY OF SAID HANDRAIL

A handrail for a railroad vehicle is disposed in a cabin of a vehicle body of the railroad vehicle. The handrail includes a handrail body whose inside serves as a filling space and a filler having fluidity and filling the filling space. The handrail body includes an opening to be used in supplying the filler to the filling space and a plug that opens and closes the opening.