Smart Workout Diary

Bent-Knee Side Crunch

The bent-knee side crunch is a bodyweight abdominal exercise performed lying on one side with the knees bent. It primarily trains the obliques through controlled side bending of the torso and can support trunk strength and body awareness. Perform it on both sides for balanced training.

Demonstration

Demonstration: Bent-Knee Side Crunch

Instructions

  1. Lie on one side on a comfortable surface with your knees bent and stacked.
  2. Place your lower arm on the floor for support and rest your upper hand lightly behind your head.
  3. Brace your abdomen, then lift your shoulders and rib cage sideways toward your hips.
  4. Keep your neck relaxed and avoid pulling your head with your hand.
  5. Lower your torso with control, complete the desired repetitions, then repeat on the other side.
Muscle Group
Obliques
Other Muscle Groups
Abs
Type
Calisthenics
Mechanics
Isolation
Laterality
Unilateral
Movement Mode
Dynamic
Equipment
Body Only
Difficulty
Beginner

Technique tips

  1. Use a small, controlled range of motion rather than trying to lift as high as possible.
  2. Keep your hips and knees stacked to limit rolling forward or backward.
  3. Exhale as you lift and inhale as you lower.
  4. Stop the set if you cannot keep the movement smooth and controlled.
Exercise library