As the economic development of the society,people could enjoy a better lifestyle and they also realized the stress,which caused a large number of ‘aging disease' among all age groups,Meanwhile,the population of the sub-health is growing.Nowadays,most of the white-collar workers and students are sitting in the front of the tabletop for working and studying.It will be the most critical reason to cause the subhealth.This thesis investigates health conditions of all age groups,and analysis different kinds of current physical therapy products on the market.Based on the research,there are three critical design elements which are safety,innovation,and practicability.Simultaneously,it is an improved physical therapy device for elderly who have joint disease.The infrared therapy apparatus aims to reduce the pain from joint disease.All in all,the easily operational function will be designed for the produce that will meet the needs for people who surfer the pain from joint disease. |