Side Crunch
- Zielmuskel
- Obliques
- Synergistenmuskeln
- Rectus Abdominis
- Equipment
- Body weight
- Körperregion
- Waist
- Typ
- Strength
The side crunch is a bodyweight core exercise performed lying on your side that directly targets the obliques, with secondary activation of the rectus abdominis. By crunching laterally rather than straight up, it isolates the side-waist muscles that standard crunches underload. It fits naturally into ab circuits and is an accessible starting point for building rotational and lateral core strength.
Side Crunch: So führst du sie aus
- 1Lie on your right side on a mat with your legs stacked, knees slightly bent or straight, and your body in a straight line from head to hip.
- 2Place your right arm on the mat in front of you for light support, or rest it along your side. Bring your left hand behind your head, elbow pointing toward the ceiling.
- 3Engage your core and press the right side of your waist gently into the mat to establish a stable base.
- 4Exhale and crunch laterally upward, lifting your shoulders and upper torso off the mat by contracting your left oblique. Keep the movement controlled — do not yank with your elbow.
- 5Hold the top position for a brief pause, squeezing the oblique hard before lowering.
- 6Inhale as you lower your torso back down with control, stopping just short of resting fully so tension stays on the muscle.
- 7Complete all reps on the right side, then switch to the left side and repeat.
Technik-Tipps
- Focus on shortening the space between your ribs and hip — think of trying to bring your elbow to your hip, not your head to the sky.
- Keep your neck neutral throughout; your hand should support your head lightly, not pull it forward.
- Move slowly and deliberately — a two-second lift and two-second lower maximises time under tension and reduces momentum.
- Keep both legs stacked and still; letting the hips roll backward turns this into a regular crunch and takes stress off the obliques.
Häufige Fehler
- Rolling the hips backward during the crunch, which shifts the load from the obliques to the rectus abdominis and defeats the purpose of the exercise.
- Pulling on the neck with the supporting hand, which risks cervical strain and does not add oblique activation.
- Using momentum to swing the torso up rather than contracting the oblique, reducing muscle engagement and increasing injury risk.
- Not pausing at the top, which allows the stretch reflex — rather than the oblique — to do most of the work.
- Allowing the range of motion to be too small by barely lifting off the mat, which prevents the obliques from reaching full contraction.
Häufig gestellte Fragen
What muscles does the side crunch work?
The primary target is the obliques (internal and external), which run diagonally along your sides and are responsible for lateral flexion and rotation. The rectus abdominis acts as a synergist, providing stability throughout the movement.
How is the side crunch different from a regular crunch?
A standard crunch flexes the spine forward and works mainly the rectus abdominis. The side crunch adds a lateral component that shifts the emphasis to the obliques — muscles the regular crunch barely reaches.
Is the side crunch suitable for beginners?
Yes. No equipment is needed and the movement is low-impact, making it accessible for most fitness levels. Beginners should keep the motion slow and focus on feeling the oblique contract rather than chasing range of motion.
How many sets and reps should I do?
Two to four sets of 12–20 reps per side works well for most goals. Because obliques recover quickly, they respond well to moderate-to-high rep ranges and can be trained two to three times per week.
What are good alternatives if side crunches feel uncomfortable?
Standing side crunches, bicycle crunches, and side planks all target the obliques effectively. If lying on your side bothers your hip, a standing side crunch eliminates that pressure entirely.
