The L-sit is a demonstration of pure evil sent in the guise of an ab exercise. It builds core strength and tests your hips ...

Scissor kicks effectively work the lower rectus abdominis ... Tuck jumps primarily target the lower abs, hip flexors, and quads. This high-intensity exercise improves explosive power, coordination ...

You don't want to go too high because then you're not engaging your abs. You want to keep your feet down about 6 inches off the ground. So, now you're doing scissor kicks. Then we have the sways ...