The cross-body mountain climber is a core workout that works your abs and your heart at the same time.
Dead bugs are an ultra-effective core exercise targeting the abs, hip flexors, and lower back.
Leg raises done while hanging are known for working the lower abs hard, but they also work the rest of the core and the hip flexors.
This core-building move has been around for a long time for a reason. Planks work on your whole stomach.
This movement works the obliques and all-around core and helps build upper-body stability and strength
The Spiderman plank is a great workout for your core because it works your abs, obliques, and hip flexors.
After a few reps, this move gets tricky, so pay attention to your form to make sure your muscles get the most out of it.