Not sure how relevant this is to you question but in the Cessna 152 I'm training on (PPL) I'd reduce power first (while keeping the attitude about the same) to increase the descent rate - this would keep me at my approach speed. I'd also consider adding a bit more flap if I wasn't already at full. All the while I'd be ready to go-around if things were getting a bit too sporting! Would depend on how the individual approach was going, prevailing conditions and the state of the a/c (i.e. how soon to I want to be on the ground).
I've also heard side-slipping can help - never tried it.
On approach I use the 'power for descent rate, attitude for speed' rule of thumb - works a treat.
If you're question is about anything bigger than a 152 (whici i suspect it is), I've got nothing
V1R