Neuromuscular and electromechanical properties of ultra-power athletes: the traceurs.

The greater maximal force production capacity of traceurs compared to untrained was underlain by nervous factors, such as greater descending command and greater ability to modulate the spinal excitability, but also by muscular factors such as greater excitation-contraction coupling efficiency. The high eccentric loads that characterize Parkour training may have led traceurs to exhibit such neuromuscular profile.