Crunches are one of the most common avenues to chiseled abdominals. Though effective when done regularly, the crunching motion can quickly become a repetitive and predictable part of any workout routine.

So why not try some alternatives that work just as well? You may not even be aware that these options exist or that doing them helps flatten your stomach. Take a pleasant break from your conventional ab routine and give these workouts a chance.

We recently visited Ironsmith to find out what motions work the best. “Sometimes my clients come in and want to do something different,” personal trainer and owner of Ironsmith Tony Kelly says, “So we do something new that also happens to be functional.”

If you are tired of crunching your way to a sleeker stomach, here are some useful methods that Kelly recommends:

Dead Bug
Lay on your back with your body flat on the ground; legs should be flexed at the knees at a 90 degree angle. Be sure to keep your lower back pressed into the ground and extend one leg at a time, alternating your legs for 12 to 15 repetitions. Perform two to three sets.

Plank
Rest your forearms on a stability ball, keeping your back straight and aligned with tightened abs and glutes. Hold a straightened position for approximately 30 seconds. Repeat three times.

Advanced Superman
Begin in a push-up position with your arms extended and slightly wider than shoulder-width apart. Slowly extend your opposite arm, leg and lower back to the beginning position. Repeat with your other arm and leg for 10 to 12 repetitions. Perform two to three sets.

Advanced Superman
Stand with one side of your body to another person, using them as a target. Hold the ball with your arms extended parallel to the ground. Throw the ball to your target, making sure to shift your weight from one foot to the other. Your feet should be hip- to shoulder-width apart (dependent upon your need for stability and sport-specificity); weight shift should be slight in order to create improved ground reaction forces that will transfer to power. Your knees should be slightly flexed and your head, neck, shoulders and medicine ball should all move together to reduce stress on the neck and shoulders while improving systemic muscle involvement. Make sure to move in one continuous motion while swinging your body, and then release the ball. This is a rotational abdominal exercise designed to focus on the obliques, but should be treated as a moderate- to high-risk movement for those with spine and pelvic pain, degeneration or injury. It is advised to work both your dominant and non-dominant sides for improved muscular balance and neurological development.