I've practiced Qi Gong, specifically standing Qi Gong (Zhang Zhuan), off and on for several years. I'm curious to know if any of you internal stylists could provide any insights into what precise benifit this practice has to a martial art. I've heard so many claims, but have yet to see any benifit beyond the vague "increase in the flow of Qi" explanation.
Does standing have any measurable application to martial arts training? If you had two Xing-yi stylists for example who spent an equal amount of time training form, sparring, etc., would the one who practiced Zhang Zhuan (ala San Ti or Yi Chuan) be more powerful?