A fitness training method using a wearable device includes the steps of storing operation information on a fitness training and length information on a body part of a terminal device; receiving motion information from a wearable device located at a reference position among the body parts Calculating the angle of the body part according to the user's movement using the motion information, the length information, and the reference position, and the terminal device calculates the angle of the body part within the reference angle range included in the operation information And judging whether or not it belongs.;
展开▼