i notice many sports coaches (and a lot of programmes i see in magazines, such as mens health) recommend a split, where-by instead of doing chest on day 1, back on day 2, legs on day 3 etc... they will hit every bodypart in each session but only for like 1 or 2 exercises

so session 1 might be:
bench press, seated row, bicep curls, squats, dips

session 2 might be:
lat. pulldown, overhead pull-over, flys, shoulder press, calf raises, crunches

session 3 might be:
incline bench press, lateral raise, deadlifts, skull crushers, narrow grip lat pulldown

^ (i made the above routine up as an example, no thought has gone into it, its just there so people understand the sort of routines i'm on about)

anyone ever seen/tried/or know anyone on a programme like this... what is the advantage of it over a 1-2 bodypart(s) a day split? and when if ever should it be used?

peace