As Sir Steven MacEanruig, Henderson developed many techniques which advanced the state of the art of the martial arts as recreated in SCA armed combat. Among these were the development of dynamic fighting styles that feature fluid movement on the part of the combatant and coordinating footwork with the timing of sword-blows in such a way as to allow the combatant to deliver forceful blows without pausing in their movement.
The passage describes Sir Steven MacEanruig, Henderson's contributions to the development of martial arts techniques for SCA (Society for Creative Anachronism) armed combat. His innovations emphasized fluid movement and synchronized footwork with sword strikes to deliver powerful blows without pausing in their movements.