The increasing use of wireless networks and the constant miniaturization of electrical devices have empowered the development of Wireless Body Area Networks (WBANs). In these networks various sensors are attached on clothing or on the body or even implanted inside the body. The wireless nature of the network and the wide variety of sensors lead to the birth of practical and innovative applications to improve health care and the quality of life. While exercising is becoming primordial in our daily life, various mobile applications were developed for runners capturing vital signals from sensors in order to calculate the number of burned calories. However, these applications still lack of compatibility and interoperability with other systems. This paper proposes an Android mobile application for calories burned during running exercise. This mobile application is fully relying on a dedicated and simplified WSN generic ontology that is introduced for overcoming the compatibility and interoperability issues aforementioned. This dedicated ontology is presented in this paper and some of its benefits are pointed out through the mobile application evaluation