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How to Perform - Criss Cross Elbow To Knee

  1. Lie on your back with your hands behind your head, elbows wide, and knees bent at 90 degrees with your feet elevated off the floor.
  2. Engage your core by drawing your navel toward your spine and slightly pressing your lower back into the floor.
  3. Exhale as you simultaneously lift your right shoulder blade off the floor while rotating your torso to bring your right elbow toward your left knee.
  4. As you rotate, extend your right leg straight out at about a 45-degree angle while keeping it off the floor for balance and increased challenge.
  5. Inhale as you return to the starting position, bringing both knees back to the 90-degree position and your shoulders back to the floor.
  6. Exhale and rotate to the opposite side, bringing your left elbow to your right knee while extending your left leg.
  7. Maintain a consistent pace throughout the movement, focusing on controlled rotation rather than speed.
  8. Keep your elbows wide and neck relaxed throughout the exercise, avoiding pulling on your head or straining your neck.

Important information

  • Make sure your movements originate from your core, not from pulling your neck or jerking your legs.
  • Keep your lower back pressed into the floor throughout the entire exercise to protect your spine.
  • If you experience any neck strain, try placing your tongue on the roof of your mouth to help stabilize neck muscles.
  • For beginners, you can keep both feet on the floor until you build enough core strength to perform the exercise with feet elevated.

Primary Muscles

Abs

Muscle Groups

Ab exercises

Mechanic

Compound

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The Criss Cross Elbow to Knee exercise stands as a cornerstone movement for anyone looking to develop defined abdominals while enhancing core stability and endurance. This intermediate-level exercise primarily targets the rectus abdominis and obliques, making it particularly valuable for those engaged in HIIT, CrossFit, or bodybuilding regimens where core power translates to improved overall performance. What sets the Criss Cross Elbow to Knee apart from basic crunches is its rotational component, which activates the deep transverse abdominis and external obliques more effectively. This twisting motion mimics the natural diagonal force patterns our bodies encounter in both athletic movements and daily activities, creating functional strength that transfers beyond the gym floor. The beauty of this exercise lies in its versatility across different fitness disciplines. 

For HIIT enthusiasts, it serves as an excellent metabolic conditioning movement that can elevate heart rate when performed with speed and precision. CrossFit athletes appreciate how it builds the midline stability necessary for complex lifts and gymnastics elements. Meanwhile, bodybuilders value its ability to create definition along the serrings (the visible lines that frame well-developed abs). Beyond aesthetic benefits, consistent practice of the Criss Cross Elbow to Knee contributes significantly to endurance capacity. The core acts as a power transfer center during virtually all physical activities, and strengthening it through controlled, challenging movements like this one improves stamina during everything from running to rowing to resistance training. 

The exercise's effectiveness stems from its engagement of multiple muscle groups simultaneously while maintaining constant tension throughout the movement pattern. This continuous tension principle is particularly important for hypertrophy and muscular endurance development, making every second of the exercise productive for tissue adaptation and strength gains. For optimal results, the Criss Cross Elbow to Knee works best when incorporated into a comprehensive fitness program that includes various core movements, allowing for balanced development of all the muscles that contribute to a strong, functional midsection.

FAQ - Criss Cross Elbow To Knee

What muscles does the Criss Cross Elbow to Knee exercise target?

The Criss Cross Elbow to Knee primarily targets the rectus abdominis and obliques. The rotational component also activates the deep transverse abdominis more effectively than standard crunches, creating comprehensive core development.

How can I modify this exercise if I'm a beginner?

Beginners can start with a partial squat depth and press lighter weights or no weights at all. You can also separate the movements initially, mastering the squat first, then the overhead press, before combining them into one fluid motion.

What are the most common form mistakes to avoid?

The most common mistakes include rounding your lower back, rotating your hips instead of keeping them square, rushing through the movement, and not hinging properly at the hips. Focus on maintaining a neutral spine, moving with control, and keeping your standing knee slightly soft rather than locked.

How often should I incorporate Criss Cross Elbow to Knee into my routine?

Include this exercise 2-3 times weekly with at least 24 hours of recovery between sessions. For optimal results, perform 2-3 sets of 12-20 repetitions as part of a comprehensive core routine that includes other movement patterns for balanced development.

Can this exercise help with lower back pain?

When performed correctly, this exercise can strengthen the core muscles that support your spine, potentially alleviating some types of back pain. However, if you have existing back issues, consult with a healthcare professional before attempting this movement, and always prioritize proper form over repetition count.