My grandfather was an Army ping ping champion in World War II. He was also a professional figure skater who skated down a canal in Holland and shot Hitler with a bow and arrow. He did claim the latter, although we only found the first to be believable. Nonetheless, he was definitely a badass. My father once did witness him bend a pipe wrench with his bare hands. He must have had ample reflexes as well from ping pong. Ping pong is effective in developing total-body reflexes (much like tennis) except at a much more acute and intense level. In advanced ping pong-age, the frequency of paddle hits and table bounces, coupled with feet positioning, paddle orientation and arms positioning requires the player to develop killer concentration and reflexes. Aside from developing reflexes for striking the ping pong ball, the intense level of acute movements can be beneficial to other activities, such as martial arts. In particular, many of the small, fast hand movements in Kali knife fighting resemble the short paddle movements of ping pong. Shuffling feet quickly (within the short width of the table), can be beneficial to quickly changing stances in many stand-up striking arts (such as Muay Thai, Taekwondo, etc).