The last post I was writing (about Body by Science) got me thinking about this. With strength training I found I reached a point where a full body workout 3x per week was just too much and I wasn't recovering properly, so I've switched to 1x per week and I'm progressing again.
Many people do a split routine, where for example they'll go to the gym 3x per week but work different muscle groups each time so each muscle group is only being hit once per week.
My question is, what's the advantage of a split routine like this over a once per week full body routine like mine? Either way, all the muscle groups are being trained once per week, so you might as well do them all in one session and save yourself a couple of trips to the gym? I'm wondering because split routines seem a lot more popular than what I'm doing.