Vital signs monitoring like heart rate and blood oxygen saturation (SpO2) is important for athletes such as marathon runners. Sudden changes or any abnormal values may be warnings of deteriorating body condition caused by fatigue, heat exhaustion and hidden heart diseases which can be fatal.
Thus, we propose a smart, lightweight and waterproof integrated health monitoring patch using optical characteristics (measuring heart rate, blood oxygen (SpO2) level, body temperature and blood glucose level) that sticks onto the skin. Together with GPS tracking and bluetooth function, data can be transmitted to computers and mobile phones wirelessly along aid stations for continuous monitoring. Powered by human body motion, it is safer than using cell batteries and also more portable. When abnormalities are spotted, emergent medical help can be offered before the condition becomes irreversible.