The authors have already presented the report on the construction of the evaluation system for the
welfare technomachines for home health care according to the infomation data with the sensory eventrelated
physiological changes (SERPes). The proof examination test was carried out on the evaluation
by the occupancy rate by alpha wave of brain wave following it this time.
In this paper, the result of evaluating two kinds of welfare technomachine for health care at home
such as an electric wheelchair and a ceiling travel lifter by the occupancy rate of alpha wave in
making four old people to be examinee was reported, and the authors also discussed the mental
conditions of four subjects. The subjects were four older adults without signficiant disease in Takanosumachi
(66-79 years). By dividing the proof examination test into three stages, the evaluation of the
welfare equipments carried out it. The first stage was the time for near I minute which started the
welfare equipments, the second stage was the actuation of the welfare equipments, and the third stage
was the time for I minute after it stopped the equipment. The order of increasing of the occupancy
rate of alpha wave by the different stages was as follows:
Stage2 < Stage3 < Stage!.
The proof examination results suggest that the occupancy rate was useful in evaluating of two
kinds of the welfare technomachine for the health care at home.