Analysis on Stress Experienced by the Elderly in Using Public Transport based on Physiological Signals

抄録

The purpose of this research is to empirically analyze the characteristics and levels of stress experienced by the elderly when they travel by public transport. The levels of stress are indicated using bio-signals. Bio-signal data were collected from the experiments where the elderly group and the young group traveled 2-hour trips, using the subway and bus. Each subject wore a set of equipment that includes sensors to measure ECG signals and 3-axis acceleration speed, and a goggle-type CCD camera to record surrounding conditions. The stress experienced in using public transport was indicated by formulating the variability of several indices such as BPM, the standard deviation of RRI and LF/HF ratio. The results show that the physical activities and resultant stress of the elderly were less varied when they were using public transport. This study shows that there are clear differences in the stress experienced by the elderly and the young.