TK Punch?

I know this is pretty random, but... how the heck does telekinetically boosting a punch work? Seriously, I used to read X-Man, and he'd punch someone with TK BOOSTS!

...

What does that mean? Are his hands surrounded by force fields? Does that make them tougher somehow? Is there like a bounce effect that sends people flying more? If it's just a force field, does he even need the fist? Does he make his arm, and possibly his whole body, move faster? Wouldn't that be a huge strain on his body, roughly equivalent to something forcefully flinging it around?

Seriously, what the crap does "throwing some TK" into a punch mean?! I've been wondering this for years! Do even the writers of the comic know?