Depending on how fit you are, you can try
doing standard planks, reverse planks, side planks, rowing planks or if you feel confident you can try the plank crunches or the plank rollout.
Keep your knees bent, sink into your hips and brace your core as if you were
doing a standard plank.
Not exact matches
So, don't let your ab routine become boring or ineffective by
doing only
standard planks.
When you look at EMG data, a measure of what degree you're activating muscles, it shows that
planks target multiple muscle groups and ones that miss out when you
do standard ab exercises like crunches.
That said, I
do recommend testing your maximum
plank duration using the traditional front elbow
plank since this is the
standard plank variation used in most testing situations.