Opposite Crunch
Target your core with the opposite crunch! This bodyweight exercise strengthens your obliques and rectus abdominis by bringing opposite elbow and knee
Description
A bodyweight exercise that targets the abdominal muscles by bringing the elbow and knee of opposite sides together in a crunch motion.
How to Do Opposite Crunch
- 1Setup
Lie supine on the floor, hands gently behind your head with elbows wide. Extend one leg straight, hovering it a few inches off the floor, while keeping the other knee bent with the foot flat.
- 2
Exhale as you simultaneously lift your torso and bring the elbow of the hand behind your head towards the opposite, bent knee.
- 3
Focus on rotating your torso and bringing your shoulder blade off the floor, aiming to connect your elbow to the outside of your knee.
- 4
Inhale as you slowly and with control lower your torso and extend your leg back to the starting position.
- 5
Complete all repetitions on one side before switching, or alternate sides, ensuring smooth transitions.
Tips
- Maintain a steady, controlled pace throughout the movement, focusing on the contraction of your obliques rather than relying on momentum.
- Keep your lower back pressed into the floor as much as possible to protect your spine and maximize core engagement.
- Avoid pulling on your neck; the hands are there for gentle head support, and the movement should come from your core.
- Fully extend the non-crunching leg and keep it hovering to increase the challenge and maintain constant tension in your core.
Common Mistakes
- ×Pulling on your neck instead of engaging your core can strain your cervical spine; instead, keep your gaze towards the ceiling and let your abs do the work.
- ×Rushing through the movement reduces muscle activation; slow down the eccentric (lowering) phase to maximize time under tension and control.
- ×Lifting the lower back off the floor during the crunch reduces core stability; focus on drawing your navel towards your spine to keep your lumbar spine flat.
Variations

Negative Crunch
Master the Negative Crunch to build a stronger core. This bodyweight exercise intensely targets your rectus abdominis with a slow, controlled lowering

Frog Crunch
Strengthen your rectus abdominis with the Frog Crunch. Lie on your back, knees bent and out, feet together, then crunch up, engaging your core.

Decline Crunch
Strengthen your core with the Decline Crunch, an effective abdominal exercise. Lie on a decline bench and curl your torso up, engaging your rectus

Reverse Crunch
Target your rectus abdominis with the reverse crunch. This bodyweight exercise effectively lifts your hips towards your chest, engaging your core for
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