No they make your punches stronger and faster as well, if you lift heavy weights that could slow the speed a bit, cuz you will have to much bulk, but boxers are encouraged to do pushups, situps, pullups, and running so go and train, and be careful
complicated stuff browse in google or bing that could help
No. Sugar Ray Robinson used to always do pull ups and look how quick and powerful he was.
No, they build upper body strength but shouldn't slow you down.
No, many boxers do them
do pullups slow down punching speed?
