TRX Supine Crunch
Strengthen your core with TRX Supine Crunches! A challenging exercise that targets your abs using suspension straps.
The TRX Supine Crunch is a compound exercise that mainly works the core, with help from the back and biceps. You'll need: suspension trainer.
Required Equipment

TRX Supine Crunch Muscles Worked
Primary
Abdominals (rectus abdominis)
Secondary
Hip Flexor (iliopsoas); Boxer Muscle (serratus anterior); Biceps (biceps brachii)
TRX Supine Crunch Variations and Alternatives
How to do the TRX Supine Crunch
Begin by securing your feet into the handles of the suspension straps so that you are in a supine (face-up) position with your head towards the floor and your feet suspended above.
Position your body in a straight line from your shoulders to your heels, with your hands placed firmly on the ground for support, slightly behind your torso.
Engage your core muscles and ensure your lower back is in a neutral position to protect your spine.
Initiate the movement by performing a crunch: draw your knees towards your chest, bending at the waist and keeping your core tight.
As you crunch, ensure that your lower back remains pressed into the ground and your head and neck are in a neutral position.
Extend your legs back out to the starting position, maintaining control throughout the movement and not allowing your hips to sag.
Repeat the crunch motion for the desired number of repetitions, focusing on form and the contraction of your abdominal muscles.
Ensure to perform this exercise in a slow and controlled manner to maximize core engagement and prevent any swinging or momentum that could reduce the effectiveness of the workout. Adjust the difficulty of the exercise by changing the angle of your body relative to the ground; the closer you are to a horizontal position, the more challenging the exercise becomes.
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TRX Supine Crunch FAQs
What muscles does the TRX Supine Crunch work?
The TRX Supine Crunch mainly works the core, with help from the back and biceps. The main muscles are the rectus abdominis.
What equipment do you need for the TRX Supine Crunch?
Suspension trainer.
Is the TRX Supine Crunch a compound exercise?
Yes. It's a compound movement, meaning it trains several muscle groups at once rather than isolating one.
What are some TRX Supine Crunch variations and alternatives?
Similar exercises include the Hanging Arm Straight-Leg Slinger, Glute Ham Developer Crunch, Ring Supine Crunch and Suspended Abdominal Fallout.
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