Long Hollow

The Long Hollow is a core exercise that also strongly works the lats.

Begin in a straight arm plank, with your shoulders stacked above your wrists.
Spread your shoulder blades apart (protract) and achieve a posterior pelvic tilt (PPT) by squeezing your abs and glutes.
Walk your hands forward until your shoulders fully open and your body is suspended just above the floor in a long hollow position.
Remember to fully elevate your shoulders as you walk out.
Be sure to maintain PPT throughout.
Hold this long hollow for time or repeat the movement for reps.