Most athletic upper-body power generation involves high levels of neuromuscular activation/coordination of a rotational nature. Therefore, it is important to assess athletic ability that replicates the rotational activity of athletes. However, a paucity of research currently measures rotational power of the core. Mean muscular power output associated with the lift assessment reported greatest reliability in well trained athletes. The asymmetry between sides was relatively small suggesting balanced multi-planar trunk development in the current throwing athletes.