Maybe you don't either. But we can develop it, according to 1996 World Cup Halfpipe Champion Rob Kingwill of Jackson Hole, Wyoming. Jump on a trampoline. As you get more comfortable, jump higher, spend more time in the air and feel the difference when jumping with one arm held out to the side, both overhead or both down by your sides. Strengthen your abs and obliques.
Aerials involve more than just jumping up and hitting a landing.
Twists and spins often require aggressive swings of the body, and that force comes from the core. Even Kingwill's signature Sato Flip demands heavy rotation. To build these abdominal muscles, Rob does four different types of sit-ups for one hour, three to four times per week, focusing on the upper and lower abdominals, obliques and the back. That's some time-consuming ab work. When you're ready to show off your most impressive trampoline moves in the powder, consider jumping with an instructor.