The midfielder turned 33 in May and has not made any indication that he is ready to hang up his boots just yet.
"You need to analyse the people and what age he is at and the body type he is," Sky Sports News quotes Rodgers as saying. "One of the biggest things in our method of work is the recovery method.
"Stevie for example plays on the Saturday, recovers on the Sunday doing pulls, stretch and massage, on the Tuesday recovers further with maybe a light jog. It's a long load of low intensity recovery. Stevie was fit enough to play Saturday, Tuesday and Sunday at the start of this season.
"He has moderate to low intensity recovery programmes. We have individual plans for every player in terms of getting them through the games."
Gerrard is expected to captain the Reds for the 400th time in Monday evening's Premier League clash against Swansea City.