After the occurrence of the Tohoku Region Pacific Coast Earthquake, many people suggested it was not the time for sports activity. However, there were concerns for the development of pulmonary embolism among the evacuees, and also children at the shelters felt stress due to the lack of exercise. Under these circumstances, the purpose of this study was to research the possibility of introducing a new generation electric system; vibration-driven energy harvesting through sports.
    The results showed that exercise for five minutes generated enough electricity to light a LED lamp for 1 minute. In conclusion, it is valuable to introduce a new generation electric system; vibration-driven energy harvesting through sports, at the shelters.