Originally posted by iluvttokyo
i figured that, maybe i wordered the question wrong . would hitting the body parts twice a week be better while On. or you think once is enough. also while on should i increase the sets per body part or remain the same.
Well... your question is much more complex than that. Frequency depends on your stage of development, workout intensity, bodypart size, age, sex, ...

For example Quadriceps need more rest days than Calves. An 18 year old needs less rest days than a 40 year old. Men need less rest days than woman. A day of high intensity - heavy weight and/or short RI's (or no RI) would need more rest than a basic POF workout.

An advanced athlete will typically use a higher load volume and/or intensity... and need more days rest (depending again on the intensity) - the reason why upper/lower body splits are only effective for newbies - their load is minimal and less taxing to them physically and mentally. They can work bodyparts more frequently - and should.

When on AAS - the advanced trainee can continue heavy loads and high intensity with fast recovery - which leads to faster growth.