The abs are composed of primarily type-II or fast-twitch (FT) muscle fibers. That means they're best suited for heavier weight and lower-rep sets rather than excessive numbers with bodyweight alone. The Sicilian crunch is a great exercise to hit them.
This exercise really taps into those FT fibers under load. During this movement, the lower body is secured as the upper body moves.
related posts
Tip: The Double-Duty Chin-Up
The kneeling rest-pause chin-up builds explosiveness and helps you perfect your form on regular chin-ups. Here's how to do it.
21 Days to a Bigger Back
Doing a back workout once a week isn't going to cut it. You need to crush it and crush it hard several times a week.
Build the Perfect Home Gym
Sick of working out with guys who curl in the squat rack? It's time to build your own 24-hour fitness facility. Here's how.
A New Way to Deadlift
Blast through your deadlift PR while building new mass on your upper back with Anderson deadlifts.