An ergonomic testing system for the first metatarsophalangeal joint range of motion

This paper presents a novel ergonomic design for the 1st metatarsophalangeal joint (1st MTPJ) stiffness measurement system. Although several studies focused on the experimental measurement of the 1st MTPJ range of motion, little attention has been given to the design of the measurement device. Based on the current problems mainly related to the device design, we propose a new design for the 1st MTPJ stiffness measurement system. To the author knowledge, this is the first equipment with a small size and simple design which is compatible for the right and left foot (ergonomic design). The device is semi- frictionless and it can measure stiffness of the 1st MTPJ with high reliability in non- load bearing position.