Arm-fastening device for measuring pulse and method thereof

An arm fastening method comprising:

• flexibly fastening, by a guide portion, a first recessed point and a second recessed point, wherein the first recessed point is below a radius of an arm of a user and the second recessed point is below an ulna of the arm;
• measuring, by a measurer, an arm length when the arm is fastened, the arm length being a length from a point at which the arm is fastened by the guide portion to a reference face;
• and
• comparing, by a determiner, the measured arm length to a reference length used for determining whether the arm is fastened and determining whether the arm is fastened based on a comparison result.

A non-transitory computer-readable medium comprising a program for instructing a computer to perform an arm fastening method, wherein the method includes:

• flexibly fastening, by a guide portion, a first recessed point and a second recessed point, where the first recessed point is below a radius of an arm of a user and the second recessed point is below an ulna of the arm;
• measuring, by a measurer, an arm length when the arm is fastened, the arm length being a length from a point at which the arm is fastened by the guide portion to a reference face;
• and
• comparing, by a determiner, the measured arm length to a reference length used for determining whether the arm is fastened and determining whether the arm is fastened based on a comparison result.