The knowledge of the effects of conditioning muscle activities on the following performances is highly relevant in professional sports. In this paper, an attempt was made to analyse the direct effects of a sensorimotor training (SMT) on the explosive leg strength. Therefore 28 physically active subjects were randomly assigned to either an intervention group (IG) or a control group (CG). Subjects were tested on two separate days. Isometric maximum voluntary contractions were investigated in a leg press. Maximum rate of force development RFDmax as well as neuromuscular activation of the quadriceps and hamstring muscles were analysed in all subjects and compared between days.