Side-Lying Oblique Crunch
A small side crunch done lying on the floor, lifting the top shoulder toward the hip. It isolates the obliques through side bending with no equipment.
Primary muscles
- Obliques
Secondary muscles
- Abs (Rectus Abdominis)
- Sets
- 2–3
- Reps
- 12–20 per side
- Rest
- 30–45s
How to perform
Main muscles working (thicker lines)
Starting position
Lie on your side with legs stacked and knees slightly bent, and place your top hand behind your head.
Brace your abs and keep your hips stacked.
Crunch your top elbow up toward your hip by bending sideways at the waist.
Squeeze for a second at the top.
Lower slowly, finish the set, then switch sides.
Breathing: Exhale as you crunch up, inhale as you lower.
Coaching tips
Ribs toward the hip
Small range, strong squeeze
Stay on your side
Common mistakes
Rolling back onto the shoulders
Pulling on the neck
Rushing the reps
Safety notes
Keep the hand behind your head light.
This information is general fitness guidance, not medical advice. Stop if you feel pain and consult a qualified professional.