stilleto said:well thats the thing, i would squat FIRST. i would NEVER EVER do leg presses before squats.
first of all, i'm a powerlifter, so squats or deadlifts would be way more important (and therefor done first) than leg presses, BUT
they are also a compound movement, requiring way more muscle help than leg presses. You don't want to tire out your leg muscles before you're going to do something that will work your legs, back, calves, core, stabilizers, etc.
When you do Squats, the weakest link will give out first.
For you this is back, for others its hips or groin.
When you do Leg Press First you are targating the Quad/Ham/gluts complex in direct fashion, and in safe fashion.
When you do Smith sQuats after you then will be able to tire out the additonal stabliizers, and retrieve the benifits of the Squats with safety and ease, and also you will be very warmed up for them