A Body Hydration Analysis System to improve running performance

During an intense activity, such as marathon or bicycle training, body is subjected to a high physical stress. This brings the performance decreasing, given by several factors such as reduction of body hydration. Low hydration gives a loss of body cooling's efficiency on which athlete's performance capabilities depend. Body hydration monitoring devices have poor accuracy and moreover it's very difficult to find them on the market. In this work we do not aspire to the production of a hydration sensor, but rather we want to analyse and identify possible measures related to body hydration, acquired during a running and not yet observed in literature. For these reasons, we present an acquisition system to collect data from whether, subject performance and saliva, an experimentation protocol and features relevance analysis. The preliminary results shown in this work are obtained using the Bio-electric Impedance Analysis as benchmark measure of body hydration.