Muscular fatigue determination apparatus, method for determining muscular fatigue, and recording medium

A method for determining muscular fatigue, the method comprising:

• obtaining, with an information obtainer, loads, rotation speeds, and myoelectric potentials of a user, using a load detector that detects the loads applied to a pedal of a bicycle, a rotation speed detector that detects the rotation speeds of a crank of the bicycle, and a myoelectric potential detector that detects the myoelectric potentials, the myoelectric potentials and the loads being in a one-to-one relationship, the myoelectric potentials and the rotation speeds being in a one-to-one relationship;
• and
• generating, with a muscular fatigue information generator, muscular fatigue information regarding the user on the basis of whether a difference between the myoelectric potentials of the user is larger than a first threshold, each of the myoelectric potentials of the user being associated to a load range that is one of load ranges and to a rotation speed range that is one of rotation speed ranges, each of the loads belonging to one of the load ranges and each of the rotation speed ranges belonging to one of the rotation speed ranges,
• wherein said obtaining further comprises classifying each of the loads into one of a plurality of load groups on the basis of a value of the load, and
• wherein said generating comprises comparing the myoelectric potentials in the same load group with each other for each of the plurality of load groups into which loads have been classified and generating the muscular fatigue information regarding the user.

A recording medium storing a control program for causing a device including a processor to execute a process, the recording medium being a nonvolatile computer-readable recording medium, the process comprising:

• obtaining loads applied to a pedal of a bicycle, rotation speeds of a crank of the bicycle, and myoelectric potentials of a user, the myoelectric potentials and the loads being in a one-to-one relationship, the myoelectric potentials and the rotation speeds being in a one-to-one relationship;
• and
• generating muscular fatigue information regarding the user on the basis of whether a difference between the myoelectric potentials of the user is larger than a first threshold, each of the myoelectric potentials of the user being associated to a load range that is one of load ranges and to a rotation speed range that is one of rotation speed ranges, each of the loads belonging to one of the load ranges and each of the rotation speed ranges belonging to one of the rotation speed ranges,
• wherein said obtaining further comprises classifying each of the loads into one of a plurality of load groups on the basis of a value of the load, and
• wherein said generating comprises comparing the myoelectric potentials in the same load group with each other for each of the plurality of load groups into which loads have been classified and generating the muscular fatigue information regarding the user.