Fatigue estimation using foot pressure sensors

Falling accidents are likely to yield severe problems such as sprains and fractures, in some cases even death. Fatigue can be considered as one of the leading factors triggering falls. One solution is a wearable sensor that can detect fatigue, but fatigue level while walking has not been quantified to date. We focus on foot pressure while walking and examine the use of a wearable sensor to capture pressure patterns before and after stimulated fatigue. In this paper, we measure the foot pressure for fatigue levels as indicated by the Karubonen Formula. Our results show that foot pressure patterns from the heel area are excellent indicators of fatigue level.