This research aims at investigating the potential effect of a 7-months systematic training program on the (a) skeletal characteristics and asymmetries, and (b) muscular strength and asymemtries of children Tennis players aged 7 to 12 years. The central scope of this project is to estimate the degree of asymmetry in skeletal structure and muscular strength as well as the developmental contribution of Tennis. The first phase of this project is currently at completion. The study is being carried-out under my supervision by Dimitria Palaiothodorou, a PhD candidate.