Chien-Hsu Chen, Ming-Chyuan Lin, Dao-Yuan Chen, and Hsin-Tien Wu
Department of Industrial Design, National Cheng-Kung University, Tainan,
Taiwan, Republic of China
Comfort and discomfort in ergonomic studies are major concerns of design the chair or seat. Several researchers have done such evaluation in those areas. Riding bicycle could be defined as a kind of "sitting", however, bicycle riding is very rare in comfort and discomfort researches.
In common parlance, comfort is a kind of concept and can refer to the feelings of either comfort or discomfort. For different riding environment such as mountain climbing or bad road, comfort would be the major factor to influence riding and control efficiency. In the off-road conditions, slope and vibration were discussed quiet often. In our research, we investigated these two factors in bicycle riding experiment and applied virtual reality (VR) techniques to make the experiment more real.
There are some literatures related the comfort problems of head-mounted display (HMD) in virtual reality environment. However, the primary objectives of our research were to (1) investigate the influences caused motion sickness and headache under the different slopes and vibration conditions with having HMD, and (2) investigate the physiological measurements such as the pressures of seat, riding speed, and the vibration of hand during bicycle riding experiment.
The experiment involved data collections under different slopes and vibrations with having HMD. We tried to evaluate the effects of different slopes and vibrations according the subjects' physiological measurements. We also defined general comfort rating (Table 1) and evaluation check list as indexes of