For the first time I would like to start adding direct core work to my weekly training. I am thinking 2x a week. But I’m not sure exactly how to do about it. Do I treat it like direct arm or chest work? Get close to failure , 60-90 second break for 5-6 sets? And then add additional reps/ time / sets as I progress.
also are flutter kicks a viable option to add along with leg raises and planks ?