Abstract
KEIROKA technology to reduce workers fatigues have been proposed. Denmark is one of the best welfare countries. The investigations were conducted to obtain the impressions to "Smart Suit Lite for care givers" from the worker in Denmark. This report shows the results of interviews and questionnaires at hospital, research institute and welfare center. In this investigation, existence of care workers who has back pain in Denmark is confirmed. The needs of prevention to the back pain and KEIROKA technology are also found in Denmark care work field.