[Purpose] The purpose of this study was to compare the work performance abilities of the elderly living alone and the elderly living together, and to examine the support method to continue living alone. [Subjects and methods] 124 elderly living alone and living together. [Method] Mail survey. The survey items were basic information (age and sex), presence of cohabiting family members, and OSA-SF competence. [Results] Elderly people living alone had higher work performance. By gender, older men living alone had higher task performance than older men living together. In particular, males carried out economic management and responsible roles in the home, while females performed domestic activities such as eating. [Conclusion] To support living alone, it is necessary to provide support according to gender.

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[Purpose] This study developed a foot lateral arch height measuring device using a laser rangefinder to quantitatively evaluate the foot lateral arch height. [Significance of this device] When using this measuring device, place one leg on the laser irradiation plate and keep the standing posture on the foot on the opposite leg. Land marks are irradiated using two laser markers. Calculate the height of the intersection of the lasers with a laser rangefinder. The lateral width of the forefoot portion is calculated using the measure of the pipe processed. [Conclusion] We have developed a measuring device that can measure the lateral arch height of the foot in a short time without drawing a line on the foot using a laser marking device and a laser rangefinder. This measuring device is capable of standing and sitting, and enables evaluation in a short time. Since it can be easily measured, it is suggested that it can be used in clinical evaluation.

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[Purpose] In the Volume.1 of No.1.of this journal, we reported “a device of a training device for strengthening toe pushing force ”. This time, a new practice device was devised by functionally and morphologically modifying the previous exercise device. The purpose of this paper was to explain the structural modifications and usage of the new toe-push force strengthening exercise device. [About this practice device (especially the revised points this time)] As described in the report of Volume 1, No. 1, this practice device was devised with the purpose of helping to improve the standing balance of humans. The first of the changes in this revision is to consider the shape of the toes. The second is that a hard sponge is used as the material for the surface (pushing surface) that presses the floor surface with the toes. [Usage method] The usage method conforms to the method described in the report in Vol. 1, No. 1.

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