Load reduction device, load reduction method, and storage medium storing program

A load reduction method comprising:

• calculating a ground reaction force load difference that is an amount of a load relief for a user, on the basis of a first measured value indicating a value at which a weight based on a weight of the user and a weight of a load reduction device that reduces a load on the user and has a mechanism that holds luggage and is at least worn by the user, is transmitted to a ground contact surface and of a second measured value indicating a value at which a weight based on the weight of the user is transmitted to the ground contact surface;
• and
• controlling, on the basis of the ground reaction force load difference, torque that is output by a drive mechanism of the load reduction device to reduce the load on the user at a joint of each leg of the user.

A non-transitory computer-readable storage medium that stores a program that causes a computer of a load reduction device to execute processes, the processes comprising:

• calculating a ground reaction force load difference that is an amount of a load relief for a user, on the basis of a first measured value indicating a value at which a weight based on a weight of the user and a weight of the load reduction device that reduces a load on the user and has a mechanism that holds luggage and is at least worn by the user, is transmitted to a ground contact surface and of a second measured value indicating a value at which a weight based on the weight of the user is transmitted to the ground contact surface;
• and
• controlling, on the basis of the ground reaction force load difference, torque that is output by a drive mechanism of the load reduction device to reduce the load on the user at a joint of each leg of the user.