Decline Weighted Crunch
Decline Weighted Crunch is a isolation spinal flexion exercise for the core. Use a controlled range that keeps the target muscles loaded and the joints comfortable.
Illustration: Decline Crunch · closest available open illustration of the same or equivalent movement. Follow the written setup for this equipment variation.
Set up
- 1Confirm the bench is stable and set the angle before loading.
- 2Keep all contact points secure throughout the set.
- 3Set the resistance and body position so the ribs begin stacked over the pelvis.
- 4Brace before moving and choose a range that does not create pulling in the low back or neck.
How to perform it
- 1Secure your legs at the end of the decline bench and lie down.
- 2Now place your hands lightly on either side of your head keeping your elbows in. Tip: Don't lock your fingers behind your head.
- 3While pushing the small of your back down in the bench to better isolate your abdominal muscles, begin to roll your shoulders off it.
- 4Continue to push down as hard as you can with your lower back as you contract your abdominals and exhale. Your shoulders should come up off the bench only about four inches, and your lower back should remain on the bench. At the top of the movement, contract your abdominals hard and keep the contraction for a second. Tip: Focus on slow, controlled movement - don't cheat yourself by using momentum.
- 5After the one second contraction, begin to come down slowly again to the starting position as you inhale.
- 6Repeat for the recommended amount of repetitions.
Breathing
Exhale through the effort or shortened position; inhale during the controlled return. Keep the trunk quietly braced.
Technique cues
- •Ribs toward belt buckle
- •Curl; do not just hinge
- •Exhale fully at the finish
Common mistakes
- •Pulling with the arms or neck
- •Moving only at the hips
- •Rushing the return
Machine busy?
See equivalent alternatives
These options train the same main muscle group and prioritize a similar movement pattern. Match the effort and rep target rather than trying to match the exact load.
Safety note: This training reference is educational, not medical advice. Use pain-free ranges and seek qualified care for persistent pain, dizziness, or other concerning symptoms.