Frog Crunch
Frog Crunch demonstration
Watch the demo so setup and tempo are clear before you follow the step-by-step cues.
Performing the: A Step-by-Step Tutorial Frog Crunch
Work through the cues in order so setup, bracing, and reps stay consistent before you add load.
- Bend your knees and open them to the sides like a frog, bringing the soles of your feet together and close to your body.
- Lift your head and shoulders off the mat, and at the same time, bring your arms through your legs, reaching towards your feet, to perform a crunch.
- Lower your head and shoulders back down to the mat while keeping your legs in the frog position.
- Repeat these steps for the desired number of repetitions, ensuring to engage your abs throughout the exercise.
Tips for Performing Frog Crunch
Form reminders that keep range of motion and control in check once the basic pattern feels stable.
- Engage Your Core: As you perform the frog crunch, make sure to engage your core muscles. This means pulling your belly button towards your spine. This will help to protect your lower back and make the exercise more effective. A common mistake is to not engage the core properly, which can lead to lower back pain.
- Mind Your Neck and Shoulders: When you crunch up, ensure that your neck and shoulders are relaxed. The power should come from your abs, not your neck. A common mistake is to pull on the neck, which can lead to strain or injury.
- Controlled Movements: Perform each crunch with slow, controlled movements. Rushing through the
Can beginners do the Frog Crunch?
A short framing note on whether this pattern suits newer lifters before you load it heavily.
Yes, beginners can do the Frog Crunch exercise. It's a great exercise to target the lower abdominal muscles. However, it's important to start slow and ensure proper form to avoid injury. If it feels too challenging, it's okay to modify the exercise or do fewer repetitions. As with any new exercise, it's always a good idea to consult with a fitness professional if you're unsure about the correct form or if you have any health concerns.
What are common variations of the Frog Crunch?
Compare these progressions when the main pattern is solid or you need a different stimulus with similar equipment.
- The Standing Frog Crunch: Instead of lying down, you stand up, bend your knees slightly, extend your arms, and then bring your knees up to your elbows in a crunching motion.
- The Frog Crunch with a Twist: This is a regular frog crunch, but as you crunch up, you twist your torso so that your elbow meets the opposite knee.
- The Weighted Frog Crunch: This variation involves holding a weight or medicine ball in your hands while performing the frog crunch, adding an extra challenge to your core.
- The Frog Crunch on Stability Ball: This involves performing the frog crunch while balanced on a stability ball, which engages more muscles as you work to maintain balance.



