My workout routine is as follows:
and Legs again.
I want to include some good core/ab exercises, please recommend some and tell me on which routines should I add them.
I am a skinny person, looking to build mass. I weigh 57 Kgs and am 180 cm tall.
In the past I have been doing planks, crunches, decline board sit up, leg raises. Also is it possible for me have those engraved ab muscles?