
The crab walk works the triceps, shoulders, and core by moving on your hands and feet.
Sitting on the floor, place your hands behind you with your fingers pointing toward your feet, feet flat, then lift your hips.
Move forward or backward by moving the opposite hand and foot, with your hips remaining lifted the whole time.
Keep your hips level with your knees as much as possible.
Image and text: Bryl Lim / Everkinetic — recoloré et rastérisé — CC BY-SA 4.0, via Workout Guide. Original entry